BPSC Science and Technology Mock Test 2027: Free Preliminary and Mains Sets
It's no longer just a matter of memorising the biology topics or chemistry formulas taught in high school, and in the most recent BPSC exams the commission has changed how it evaluates the candidates.
Thirty of the 150 questions in the BPSC Preliminary General Studies paper are concerned with the field of General Science and Technology; more importantly, nearly 35 to 40 per cent of the questions in this area are now about Applied Science and Modern Technology.
In the Science and Technology section of the BPSC Mains GS Paper 2 (Section 3), there is a separate descriptive part. The examination committee often asks candidates to explain how technology can deal with real-world problems in Bihar, such as recurring floods, agricultural droughts, and the provision of rural healthcare services.
This page serves as your principal topic centre for Applied Science and Technology. If you want to practice basic subjects found in textbooks such as human anatomy or chemical bonding, you should use our specific subject tests. The hub focuses on modern technological developments, such as space exploration, defence platforms, artificial intelligence, biotechnology, green energy, and technology initiatives particular to Bihar.
The use of our BPSC Science and Technology Mock Test 2027 will enable you to acquire the skills necessary if you want to shine in this evolving section. You will do some realistic questions, practise under the present 1/3rd negative marking system, and get ready for both the multiple-choice questions in the Preliminary and the descriptive analytical questions in the Mains.
Exact Exam Context: Preliminary and Mains
Understanding how Science and Technology is incorporated in both stages of the BPSC Combined Competitive Examination will help you plan your preparation more effectively:
| Parameter | Detail |
|---|---|
| Preliminary Paper Placement | Part of the BPSC Preliminary General Studies paper (Section 3) — about 30 questions |
| Mains Relevance | BPSC Mains GS Paper 2, Section 3 (Descriptive analytical answer-writing, 72 marks) |
| Scheme for initial marking | +1 mark for a correct answer, a penalty of –0.33 (one third) for an incorrect answer, and the question format is four-option. |
| Exam Duration | Shared within the 2-hour (120 minutes) Preliminary General Studies paper |
| Key Modern Focus | Applied Science, Emerging Technology, Renewable Energy, Bihar-specific S&T applications |
| Language Medium | Bilingual (Questions are presented side by side in clear Hindi and English) |
If you need to reinforce the fundamentals of basic science first, why not try our specialized
[BPSC Physics Mock Test], [BPSC Chemistry Mock Test]
The page is concerned with Applied Science & Technology.
What Most Free Platforms Omit
Most coaching platforms simply re-use old test papers without updating their question formats. The table below shows how our dedicated testing platform differs from typical test websites:
| Feature / Preparation Need | Competitors (Testbook / Adda247 / Drishti IAS / Khan Global Studies) | Our Dedicated Platform (SarkariMockTest) |
|---|---|---|
| Content Focus | Only older 10th-class static Biology and Chemistry (such as the Digestive System and basic Periodic Table) | Applied Science & Technology (including AI, Space, Quantum, Drones, Renewable Energy) which now accounts for 30–40% of the weightage |
| Bihar-Specific S&T | No coverage — no questions on the state's technology projects or disaster monitoring | A dedicated section on Bihar's tech applications (BREDA, Jal-Jeevan-Hariyali, Flood Early Warning, Bihar IT Policy) |
| Negative Marking Pattern | Outdated 5-option format (with Option E) or practice tests that have no negative marking | Current 1/3rd negative marking with the standard 4-option MCQ structure |
| Content Freshness | Uses test papers from the 2024 and 2025 examination batches | Recreates practice papers specifically for the 2027 examination cycle |
| Interactive Test Engine | Offers static PDF lists or simple quizzes without a timer | Features a full interactive countdown timer, instant score calculation, and an All-Bihar percentile rank. |
Complete Micro-Syllabus: The Five Applied Tech Pillars
In order to do well in both the Prelims and the Mains, your preparation should focus on five key technology areas. Rather than including the static definitions typically taught at form ten, the micro-syllabus centres on the technologies which the BPSC exams:
Plaintext
1. Space and Defence Technology
India's space and defence programs supply regular questions in both Prelims and Mains:
The development of India's launch vehicle technology having progressed from the SLV-3 and ASLV to the PSLV (Polar Satellite Launch Vehicle), the GSLV Mk II, and the LVM3 (Launch Vehicle Mark-3); a description of the working principles of the solid, liquid, and indigenous cryogenic upper stages (CE-20 engine); and the creation of the Small Satellite Launch Vehicle (SSLV) for use with commercial payloads.
The key space missions are Chandrayaan-3, this comprising the Vikram lander and the Pragyan rover operating in the lunar polar areas, along with Aditya-L1 which makes solar observations from the Sun-Earth Lagrangian point L1 by means of coronagraphs, and the Gaganyaan human spaceflight programme which concentrates on the crew module's environmental control and life support systems, crew escape tests, and orbital parameters.
The parts concerning earth observation and navigation involve the Indian Remote Sensing (IRS) satellites, the use of synthetic aperture radar (with the NISAR mission being carried out in cooperation with NASA), the monitoring of disasters from space, and the NavIC (Navigation with Indian Constellation) regional positioning system (a constellation consisting of seven satellites operating on the L5 and S bands).
The missiles and air defence systems developed by the DRDO as part of the Integrated Guided Missile Development Programme (IGMDP) consist of the Prithvi (a short-range surface-to-surface missile) and the Agni series (which includes the Agni-I through to Agni-V, all of which have canisterized road-mobile systems and the capability to carry Multiple Independently Targetable Re-entry Vehicles / (MIRV)); it also includes cruise missiles such as the BrahMos supersonic missile system (this system makes use of ramjet propulsion). With regard to Ballistic Missile Defence (BMD), a two-tier defence system is in place comprising the Prithvi Air Defence / PAD for carrying out intercepts outside the atmosphere and the Advanced Air Defence / AAD for carrying out interceptions within the atmosphere.
The artillery, drones and stealth technologies comprise the Pinaka multi-barrel rocket launcher systems, the Advanced Towed Artillery Gun System (ATAGS), the unmanned aerial systems (Tapas-BH, Rustom), the loitering munitions, and the stealth technologies employed in the Project 75I submarines and in the fifth-generation fighter designs (AMCA).
2. New technologies and digital governance
Digital systems transform public governance, commercial manufacturing, and civil administration:
Artificial Intelligence and Machine Learning involve machine learning models, natural language processing, computer vision, and neural networks. In the field of public administration, applications of AI cover predictive policing, the detection of welfare fraud, the forecasting of agricultural crop yields, and traffic management. The IndiaAI mission has objectives, a compute capacity infrastructure, and raises ethical issues concerning deepfakes, algorithmic bias, and data privacy.
The telecommunications sectors involving 5G, 6G and optical networks include the distinction between 5G standalone (SA) and non-standalone (NSA) networks, the use of millimetre-wave bands, massive MIMO, network slicing, low latency industrial applications, the Open RAN (Radio Access Network) architecture, and the research priorities outlined in the Bharat 6G Vision document, as well as the deployment of BharatNet to provide rural broadband through optical fibre networks.
Quantum Computing and Cyber Security: Classical bits and quantum bits (qubits), quantum superposition, quantum entanglement, and quantum tunneling. National Quantum Mission (NQM) goals include making quantum computers, quantum communications, and quantum key distribution (QKD) for safe military communications.
The Silicon Wafer fabrication, chip packaging (ATMP/OSAT), compound semiconductors, and the supply chains for raw materials (such as silicon and gallium nitride) are all within the scope of the Semiconductor Mission and electronics manufacturing; this means that the India Semiconductor Mission's incentives, its design-linked incentives, and the setting up of semiconductor fabrication units in India are included.
The subject matter covers both public and private blockchains, consensus mechanisms (for example Proof of Work and Proof of Stake), smart contracts, and digital records which are tamper-evident. In the area of public administration the applications involve land title registration, the verification of academic certificates, the tracking of the supply chain, and Central Bank Digital Currency (CBDC / Digital Rupee).
The part relating to the ecosystem and robotics covers the rules for drones, the digital sky platform, the classification of airspace (divided into green, yellow, and red zones), and the use of drones for conducting aerial surveys of land (under the SVAMITVA scheme), for spraying crops, and for search-and-rescue missions in the event of a disaster.
3. The use of these applications in the areas of life sciences and biotechnology
Modern biotechnology addresses key challenges across healthcare, farming, and food security:
The subject matter covers recombinant DNA technology, restriction enzymes, DNA ligase, gene cloning, and vector systems; concerning CRISPR-Cas9 technology, it includes the guide RNA mechanism, the action of the Cas9 endonuclease, precise gene insertion or deletion, its use in the treatment of genetic diseases (for example, sickle cell anemia), and the ethical considerations relating to somatic as compared to germline gene editing.
The examples include agricultural biotechnology and genetically modified crops such as Bt Cotton (this uses Cry proteins to fight bollworm), Bt Brinjal, and the DMH-11 hybrid mustard (which uses the Barnase-Barstar system). The Genetic Engineering Appraisal Committee (GEAC) is responsible for regulating these items, the regulation extending to the biofortification of Golden Rice with beta-carotene (a precursor of Vitamin A), drought-tolerant seeds, and bio-fertilizers.
Here are some of the modern vaccine platforms: those which use inactivated or attenuated pathogens, as well as a number of different platform technologies, such as mRNA vaccines (in which the mRNA is delivered by means of lipid nanoparticles and then translated into the required spike proteins), DNA vaccines (for example ZyCoV-D, which are administered in a needle-free way), viral vector vaccines (using adenovirus delivery systems), and recombinant protein subunit vaccines.
The basic principles of nanotechnology in farming concern the surface-area-to-volume ratio at nanoscale sizes (1 to 100 nm). In the case of IFFCO Nano Urea and Nano DAP, the method employed is foliar spraying, which results in more efficient uptake of nutrients, less chemical run-off, improved soil health and the attainment of subsidy savings.
The following topics are covered: the mechanisms involved in bacteria acquiring drug resistance, superbugs, the improper use of antibiotics in both human medicine and in livestock, the One Health approach, and diagnostic techniques including RT-PCR, ELISA, and rapid antigen detection systems.
4. Energy, Nuclear, and Climate Technologies
The development of clean energy infrastructure is of great importance for environmental policy and for economic planning.
The technologies associated with renewable energy include solar photovoltaic technologies such as polysilicon, mono-crystalline PERC cells, thin-film panels, and perovskite tandem cells, as well as floating solar power plants. Among wind turbine technologies are those with horizontal and vertical axes together with offshore wind installations. Advanced energy storage consists of lithium-ion batteries, sodium-ion alternatives, and pumped-storage hydropower.
The National Green Hydrogen Mission divides hydrogen into three categories—grey hydrogen (which is produced from fossil fuels without the use of carbon capture), blue hydrogen (that is produced from fossil fuels but with carbon capture), and green hydrogen (produced by means of water electrolysis powered by renewable electricity). The different types of electrolysis cells are alkaline, Proton Exchange Membrane (PEM), and Solid Oxide. The mission's objective is to reach an annual production level of 5 million metric tons, to establish export hubs, to produce green ammonia, and to use this ammonia in the manufacturing of steel, in refining, and in the production of fertilisers.
Nuclear Power and NPCIL Systems: The reactors fall into two categories, namely Pressurized Heavy Water Reactors (PHWR) and Light Water Reactors (LWR). The three stages of India's Three-Stage Nuclear Power Programme are as follows: in Stage 1 natural uranium is used in PHWRs both for the generation of electricity and for the production of plutonium-239; in Stage 2 Fast Breeder Reactors (FBR, for example the Prototype FBR at Kalpakkam) are used, these combining plutonium-239 and uranium-238 to produce more fissile material; in Stage 3 Advanced Heavy Water Reactors (AHWR) based on thorium-232 are employed and use is made of India's deposits of monazite sand which are located in the coastal regions. Development is also underway of Small Modular Reactors (SMRs) for decentralised clean power generation.
The technologies involved in Carbon Capture, Utilization, and Storage (CCUS) are post-combustion capture, direct air capture, deep geological storage, and carbon mineralization; waste-to-energy technologies include biomethanation, anaerobic digestion, refuse-derived fuel (RDF), and plasma gasification.
5. Technology Applications Specific to Bihar (The Factor That Leads to Higher Yields)
It is this section that sets apart the students who perform well from those who do not in the BPSC Prelims and Mains exams, since while general testing platforms neglect local technological initiatives the BPSC questions concentrate on technologies that have been put to use in tackling problems particular to the state.
The system for providing early warnings of floods and for monitoring rivers makes use of hydrological satellite telemetry, mathematical modelling, and automated weather stations in the catchment areas of the Kosi, Gandak, Bagmati, and Mahananda rivers. In order to reduce the severe seasonal flooding in North Bihar, the real-time discharge data is exchanged between the water resources departments of Nepal and Bihar.
Under the Jal-Jeevan-Hariyali Mission, GIS mapping and satellite remote sensing are employed in order to identify, map, clean out silt from, and protect traditional water harvesting structures such as Ahar-Pyne systems, public ponds, and state wells; drones are used to assess agricultural damage so that crop insurance claims can be validated.
The renewable energy projects carried out by the Bihar Renewable Energy Development Agency (BREDA) have included the installation of floating solar power plants in the ponds located in Darbhanga and Supaul, the setup of decentralised solar mini-grids in remote rural hamlets which have no electricity, and solar irrigation pumps that have been installed as part of the state-subsidised farmer assistance schemes.
Bihar has been leading the way in implementing smart prepaid electricity meters on a wide scale in order to cut down on the Aggregate Technical and Commercial (AT&C) losses for the state's power distribution companies (SBPDCL and NBPDCL). The technology used includes two-way radio frequency/cellular communication, automatic meter reading, and the ability to monitor the balance through a mobile app.
The expansion of Digital Governance and Rural Tele-Medicine is involving the establishment of a tele-medicine service through the e-Sanjeevani platform to link rural Health and Wellness Centres (Ayushman Arogya Mandir) with medical college hospitals located in Patna and Darbhanga. Digital land records are currently being produced by means of modern survey drones, the e-Mapi portals, and biometric-linked public service delivery (RTPS Bihar).
The state provides incentives to technology companies that set up their operations in Patna, covering aspects such as data centres, electronics manufacturing clusters, IT parks, and technology incubation programmes carried out in cooperation with the regional engineering institutions.
Analysis of Previous Year Questions (PYQ) Trends
An examination of the recent BPSC examinations (including the 68th, 69th, 70th, and 71st cycles) shows the changes that have taken place in the 30 science questions:
In the earlier rounds (the 60th to 67th BPSC) the questions were simple and straightforward, being based on static definitions (for example, "What is the powerhouse of the cell?" or "What is the SI unit of force?"). In the more recent examination cycles, however, the commission has greatly altered the way in which it sets its questions:
- The focus should be on the emerging systems, since the questions are now about ISRO's particular payloads, missile engines, and genome-editing techniques.
- When evaluating the science questions, up to 35 percent of them contain two or three statements and ask the candidates to determine which of the technical details are correct.
- Questions usually take the form of "Which of the following statements about green hydrogen is not correct?" in order to ascertain whether the candidates have carefully read the details.
- The questions in the Mains GS Paper 2 deal with the application of technology in dealing with flood damage, drought effects, and economic development in Bihar.
| Topic Category | Expected Questions | What the Question Evaluates | Strategic Preparation Tip |
|---|---|---|---|
| Space, Defence & Satellites | 4 to 5 Questions | The topics covered include rocket stages, orbits, satellite missions, missile guidance, and propulsion systems. | To stay informed about ISRO's launches and DRDO's platform tests, refer to the official releases from the PIB. |
| Emerging Tech & Computing | 3 to 4 Questions | When it comes to emerging technologies and computing, practical applications of artificial intelligence, the concepts of quantum computing, the features of 5G, and semiconductor technology should be examined, | with a focus on real-world governance and commercial uses rather than on abstract mathematical theory. |
| Biotechnology & Agriculture | 3 to 4 Questions | Questions 3 and 4 should cover CRISPR mechanisms, the characteristics of genetically modified crops, the various types of vaccines, and the effects of nano-fertilisers. | You should review the advances in agricultural biotechnology that have been supported by both central and state farm agencies. |
| Energy & Climate Tech | 2 to 3 Questions | With regard to green hydrogen production, nuclear fuel cycles, solar cells, and carbon capture, | you should memorise the key figures from the National Green Hydrogen Mission and the country's clean power targets. |
| Bihar Tech Applications | 2 to 3 Questions | There are two or three questions relating to early warnings of floods, BREDA solar installations, smart prepaid meters, and digital state services. | Check out the annual reports of the Water Resources and Energy departments of Bihar. |
Blueprint for BPSC Mains GS Paper 2 (Section 3): Science and Technology
Many candidates limit themselves to preparing for the preliminary multiple-choice questions and therefore fail to gain the skills required for the Mains examination. The General Studies Paper 2 in the BPSC Mains exam is divided into three sections:
- Section 1: Indian Polity and State Governance (38 + 38 + 38 marks)
- Section 2: Indian and Bihar Economy & Geography (38 + 38 + 38 marks)
- Section 3: The Role and Impact of Science and Technology in the Development of India and Bihar (36 + 36 marks = 72 marks)
In Section 3 candidates have to write two essays which are both detailed and analytical (each carrying 36 marks). The commission rarely poses purely theoretical questions such as "Define nuclear energy". Rather, it examines the candidate's ability to apply technology to nation building.
- How can modern technologies, such as remote sensing, artificial intelligence, and GIS mapping, be of assistance in solving the problem of annual floods in North Bihar and that of droughts in South Bihar?
- Discuss the role of biotechnology, nano-fertilisers, and precision farming technologies in increasing agricultural productivity and doubling farmers' income in Bihar.
- Regarding energy security, look at the potential of renewable energy technologies for meeting Bihar's growing demand for power, focusing on the measures that have been taken by BREDA.
- Waste Management has been asked to explain how modern waste-to-energy technologies and the principles of a circular economy can be used to meet the urban solid and liquid waste problems encountered by the municipal corporations in Bihar.
How to Structure a 36-Mark BPSC Mains S&T Answer:
- Introduction (3 to 4 sentences): The main technology should be clearly identified, its scientific basis should be stated, and reference should be made to the appropriate national policy framework (for example, the National Quantum Mission or the National Green Hydrogen Mission).
- Diagram of the technological mechanism (either a simple block diagram or a flowchart): draw a basic block diagram to illustrate how the technology functions (for example, the pathway of satellite telemetry from a river gauge to the central server, or the inputs and outputs of an electrolyser).
- Regarding the specific challenges facing Bihar: this aspect is the most important in your answer. Make sure that at least half of your essay includes specific examples from the state (for instance, flood management in the Kosi basin, the introduction of smart prepaid meters by SBPDCL/NBPDCL, or the use of telemedicine via e-Sanjeevani in primary health centres).
- Government initiatives and the relevant institutional arrangements: refer to the various schemes at the state and central levels (for example, Jal-Jeevan-Hariyali, BREDA programmes, or Digital India).
- The problems involved in putting it into practice include things like high initial costs, a lack of digital literacy, the instability of the power grid, and inadequate maintenance.
- Way Forward & Balanced Conclusion: Offer practical recommendations focusing on capacity building, public-private partnerships, and training of local administrative staff.
Platform Features and Performance Analytics
Our testing system is designed to give clear diagnostic feedback on preparation for modern technology:
- Category-Wise Accuracy Heatmaps: Your score report shows your performance across the areas of Space and Defence, Emerging Technology, Biotechnology, Energy, and Bihar Technology Applications.
- Time-Per-Question Diagnostics: The system highlights any question in which you spend more than 75 seconds, helping you to avoid getting stuck on multi-statement technical questions.
- All-Bihar Leaderboard and Live Percentile: You can compare your score with those of thousands of other candidates who are preparing in places such as Patna, Gaya, Muzaffarpur, Bhagalpur, and Delhi.
- Detailed Bilingual Explanations: Each question comes with a full explanation in simple Hindi and English, including the technological context and source citations.
- Topper Pacing Comparison: You can compare your question selection order and answering speed with those of top performers to improve your test-day strategy.
- Daily Practice Streaks and Badges: Earn milestone badges and stay consistent with your studies by doing short daily quizzes.
AI-Based Weak Area Recommendation
The system identifies your weak areas by means of an AI tool which functions similarly to a private tutor examining your answer sheet. Here's a description of how the analysis works: you take a 30-question practice test in the Science and Technology section and submit your answers. The system notes for each question——each one——whether it was answered correctly, incorrectly, or not answered at all for all the individual technological sub-topics. If you perform well on areas such as space launches and defence missiles but still get the questions on green hydrogen production, CRISPR-Cas9, or Bihar smart meters wrong, the system will display those topics in red on your dashboard. It then provides an automatic study recommendation: "Your accuracy dropped below 45% in Biotechnology and Bihar Tech Applications. Please study our notes on genome-editing rules and BREDA floating solar installations, and then carry out our 15-question focused drill before your next full mock test."
Caption: The performance dashboard, which uses AI, displays heatmaps grouped by category, provides analytics on the time taken for each question, and gives candidates preparing for the BPSC Science and Technology exam with personalised revision suggestions.
The 15 common mistakes made by aspirants in BPSC Science and Technology
Avoid these frequent errors if you want to safeguard your score:
- Focusing just on static science for 10th grade—spending all your time on basic biology and chemistry and ignoring modern applied technologies such as AI, space missions, and green hydrogen.
- Failing to take Bihar's own technological initiatives into account: for example, the flood early warning telemetry, the BREDA solar programmes, and the smart prepaid meters, all of which are frequently mentioned in both the Prelims and Mains exams.
- Carrying out practice with negative marking patterns that are out of date: this involves using test series that still include five options (such as Option E) or those that do not apply negative marking penalties.
- When answering questions in which you have not eliminated more than one-third of the alternatives, making random guesses at multi-part technical questions without ruling out any of the options will result in a lower overall score.
- Learning technical terms like "CRISPR" or "Quantum Entanglement" without having an understanding of how they work or how they are put into practice.
- Misidentifying the launch vehicles for spacecraft: confusing the payload capacities and orbital destinations of the PSLV (which is used to reach sun-synchronous polar orbits) with those of the LVM3 (which attains geostationary transfer orbits).
- Not being able to tell the difference between defence platforms: taking cruise missiles (which have air-breathing jet engines, such as the BrahMos) for ballistic missiles (which are propelled by rockets and follow parabolic trajectories, like the Agni).
- Failing to practice on real paper OMR sheets by merely answering the questions on smartphone screens and as a result making errors when filling in the actual offline preliminary exam.
- Working on technical questions casually without keeping record of how long each question takes by not using a stopwatch.
- Misunderstanding the different categories of hydrogen: confusing grey hydrogen (which is obtained from fossil fuels), blue hydrogen (hydrogen based on fossil fuels with carbon capture), and green hydrogen (hydrogen produced by water electrolysis using renewable energy).
- Giving purely theoretical answers in the Mains exam means preparing abstract scientific essays for Mains GS Paper 2 without explaining how the technology can be applied to specific development issues in Bihar.
- Confusing the fissile isotopes (Uranium-235, Plutonium-239, Uranium-233) with the fertile materials (Uranium-238, Thorium-232) in India's three-stage nuclear programme.
- Based on isolated notes from social media: Instead of referring to the official statements issued by ISRO, DRDO, and the Press Information Bureau, one gathers unverified summaries of scientific topics from online groups.
- Failing to consider the biotechnology regulatory framework: one's understanding of genetically modified (GM) crops will not include the function of the Genetic Engineering Appraisal Committee (GEAC).
- In the Mains answers, the omission of diagrams: composing lengthy text paragraphs in Mains GS Paper 2 without including any diagrams, process flowcharts, or sketches of system architectures.
Preparation Strategy: Applied Science + Bihar Technology + Mains Answer Writing
Adhere to this structured study plan to become proficient in both the Prelims and Mains Science and Technology sections:
Watch the main government science websites: make sure you read the official press releases issued by the Press Information Bureau (PIB) of the Ministry of Science & Technology, those from the Department of Space (ISRO), and those from the Department of Atomic Energy.
Maintain an Applied Technology Notebook by allocating distinct sections to Space Exploration, Defence Systems, Emerging Digital Technologies, Biotechnology, and Energy Solutions; in each of these sections, note the working mechanisms, key terminology, and national missions.
After finishing each technology chapter, take topic-specific Prelims quizzes by working through 20 to 25 objective questions in order to enhance both your speed and accuracy.
Look at the reports published by the various departments of the government: examine the annual summary reports produced by the Water Resources Department, the Energy Department, and the Information Technology Department of Bihar.
Connect technology with the state's specific problems by preparing one-page notes on how it helps to address particular regional issues, for example regarding flood management on the Kosi river, groundwater monitoring as part of the Jal-Jeevan-Hariyali scheme, and the deployment of solar mini-grids by BREDA.
Do the full-length hub practice tests: Take our BPSC Science and Technology Mock Test 2027 which consists of 30 questions and is set under a strict 25-minute time limit so that you get used to the exam pace.
Each week write two answers for the Mains exam: practise responding to previous BPSC Mains GS Paper 2 Section 3 questions. Ensure that each essay includes a clear introduction, a technological diagram, specific applications in Bihar, an analysis of the challenges, and some policy recommendations.
Keep an Error Logbook by recording all the factual errors or confusing terms that you encounter during your initial mock exams and then go through this logbook every Sunday evening.
Daily current affairs and general awareness practice
The news continually reports on scientific advances, new space launches, tests of defence platforms, and state-level technology programmes.
Spend 15 minutes every morning taking our free daily current affairs quiz to stay informed about national science policy, ISRO missions, and Bihar government schemes:
Recommended reference sources and study materials
Stick to reliable and verified sources rather than reading general science books:
| Source Category | Recommended Publication / Source | Primary utility for BPSC aspirants |
|---|---|---|
| Official Government Releases | Press Information Bureau (PIB Science & Tech) | Reliable source for new national technology missions, cabinet approvals, and research initiatives |
| Space & Defence Portals | Official ISRO and DRDO websites | Main source for payload configurations, launch vehicle stages, and missile trial specifications |
| State Government Reports | Annual Reviews of Bihar Water Resources & Energy Department | Essential for obtaining real data on flood early warning networks, smart meter rollouts, and BREDA solar projects |
| Science Magazines | Science Reporter (NIScPR / CSIR) | In-depth feature articles on biotechnology, quantum computing, and climate mitigation technologies |
| General Science Foundations | NCERT Science Textbooks (Classes 9 and 10) | Useful for understanding basic science principles before moving on to modern applied technologies |
Eligibility Criteria for BPSC Combined Competitive Examinations
Candidates who are appearing for the BPSC Combined Competitive Examination must meet the commission’s standard qualification requirements:
| Eligibility Factor | Standard Commission Guidelines | Key Verification Details |
|---|---|---|
| Nationality | Citizen of India | Open to all candidates nationwide; state reservation benefits are available to permanent residents of Bihar |
| Educational Qualification | Bachelor’s degree in any discipline | Must hold a recognised graduation degree from a university established by law |
| Minimum Age Limit | 20, 21, or 22 years | Varies according to the specific administrative, police, or departmental post applied for |
| Maximum Age (General Male) | 37 years | Standard upper age limit for unreserved male candidates |
| Maximum Age (BC / EBC Male & Female) | 40 years | Includes the standard 3-year state age relaxation |
| Maximum Age (General Female) | 40 years | Standard upper age limit for unreserved female candidates |
| Maximum Age (SC / ST Male & Female) | 42 years | Includes the standard 5-year state age relaxation |
BPSC Examination Calendar: Projected Milestones
The following outlines the expected administrative milestones for the upcoming recruitment cycles:
| Recruitment Milestone | Expected Operational Timeline | Current Status |
|---|---|---|
| Official Notification Release | Yet to be officially announced | Yet to be officially announced |
| Online Application Window | 30 Days after the notification is released | Yet to be officially announced |
| Admit Card Release Date | 10 to 14 days before the examination | Yet to be officially announced |
| Preliminary Written Examination | To be conducted at district centres in Bihar | Yet to be officially announced |
| Provisional Answer Key Publication | 7 to 10 days after the examination | Yet to be officially announced |
| Preliminary Written Result Declaration | 6 to 8 weeks after the examination | Yet to be officially announced |
Free vs Paid Mock Tests: What You Get
We believe that all students in Bihar should have access to good exam preparation. The table which is given below compares our free practice option with the standard commercial packages:
| Feature / Resource | Our Free Platform Access | Commercial Paid Platforms |
|---|---|---|
| Full-Length Sectional S&T Tests | 2 full 30-question practice sets are available for free | 1 free test, then a paywall of ₹299 to ₹499 |
| Content Currency | New question sets specifically designed for the 2027 cycle | Often reuses older 2024/2025 question papers |
| Applied Technology Depth | Detailed coverage of topics such as space, AI, and green hydrogen | Limited to basic 10th-grade static biology questions |
| Bihar Tech Applications | Includes questions on BREDA, floods, and meters | Has no dedicated coverage of Bihar's technology initiatives |
| One-third Negative Marking Engine | Applies the present 4-option format with a deduction of 0.33 | Many websites continue to use the obsolete 5-option (Option E) format |
| Bilingual Explanations | Complete explanations in both Hindi and English | Often only shows the answer letter (A, B, C, or D) |
| AI Weak Area Heatmap | Included for all registered users | Locked behind expensive subscription tiers |
Sample High-Yield Practice Questions with Solutions
Review these three sample questions, which illustrate the types of questions used in our practice series:
Sample Question 1: Space Technology
Question: With reference to the LVM3 (Launch Vehicle Mark-3) of the Indian Space Research Organisation (ISRO), consider the following statements:
The rocket is a three-stage vehicle made up of two solid rocket boosters, a central stage which uses liquid fuel, and a cryogenic upper stage.
The CE-20 engine, which has been developed domestically, is used to power the cryogenic upper stage of the LVM3.
The LVM3 was the launch vehicle designated for the Chandrayaan-3 lunar mission.
Of the statements listed above, which ones are correct?
(A) 1 and 2 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2, and 3
Correct Answer: (D) 1, 2, and 3
Explanation: The three statements are correct. The LVM3 (which was previously called GSLV Mk III) is ISRO's most powerful operational launch vehicle. It has a three-stage design consisting of two strap-on S200 solid rocket boosters, a core L110 liquid stage driven by two Vikas engines, and the C25 cryogenic upper stage which uses the domestically developed CE-20 cryogenic engine. It successfully placed Chandrayaan-3 into the orbit intended for it on 14 July 2023, and it will be the vehicle used for India's Gaganyaan human spaceflight missions.
Sample Question 2: Biotechnology & Sustainable Agriculture
What is the scientific mechanism of Nano Urea, which has been developed for use in agriculture in India, among the following options?
It includes soil bacteria which have been genetically modified so as to fix nitrogen from the atmosphere within the roots of plants.
B) It applies nanoscale urea particles by means of a foliar spray, the particles then entering the plant leaves directly through the stomata.
C) The chemical tablet, which is designed to release its contents gradually, is put into the irrigation channels and takes three months to dissolve.
D) It makes use of radioactive isotopes in order to trace the uptake of nitrogen throughout the plant stems.
The correct answer is (B) since it involves delivering nanoscale urea particles by means of a foliar spray, the particles then entering directly into the leaves of the plant through the stomata.
Nano Urea (which has been developed by IFFCO) is made up of nitrogen particles at the nanoscale (with sizes between 20 and 50 nanometers) that are in liquid form. Unlike ordinary granular urea that is applied to the soil, where more than 50% of the nitrogen is lost through leaching, volatilization, and run-off, Nano Urea is sprayed directly onto the leaves of plants (this is a foliar application). The particles are able to enter the plant cells directly via the stomatal pores because of their nanoscale size and are then transported through the phloem tissue, resulting in a nutrient efficiency of over 80%.
Sample Question 3: Bihar Technology Applications
What, in the context of disaster management in Bihar, is the way in which the Flood Early Warning System (FEWS) used by the Water Resources Department functions?
It does so by using acoustic sensors which are automated and situated at the bottom of the Ganga river in order to measure the clarity of the water.
B) By combining data from satellite telemetry, rainfall radar, and computer models of the river discharge upstream in Nepal, it is able to predict flood levels 72 hours ahead.
C) It makes use only of manual telegram messages sent by the head of each local village panchayat.
D) It makes use of deep-sea submersibles for the purpose of measuring tidal currents in North Bihar.
The correct answer is (B) because it uses satellite telemetry, rainfall radar data, and models of the river discharge from upstream in Nepal to predict flood levels 72 hours ahead.
The Flood Early Warning System (FEWS) operated by the Water Resources Department of Bihar is run in cooperation with national technical agencies. It obtains automated rainfall and river discharge data from gauge stations located in the upstream catchment areas of Nepal and North Bihar by means of satellite telemetry. Using mathematical hydrological models, the system processes this data in order to predict the incoming river surges on the Kosi, Gandak, Bagmati, and Kamla rivers up to 72 hours ahead, giving the district authorities the opportunity to warn vulnerable groups and strengthen the embankments.
How to Apply for BPSC Examinations Online
The application process is carried out through the official commission’s web portal:
- Go to the Official Web Portal: Open your web browser and visit onlinebpsc.bihar.gov.in.
- For full one-time registration (OTR), you should use your active mobile number and email address so that you can get your login details.
- Complete the section on personal and educational information by filling in your name, the name of your father, your date of birth, your category, and your graduation details exactly as they are listed on your official certificates.
- Upload scanned images of your photograph, your signatures in Hindi and English, and your qualification certificates, making sure they are within the specified dimensions.
- To pay the application fee: you can pay it online by using a debit card, a credit card, net banking, or UPI.
- Page for printing: Print two copies of your filled-out application form for use when verifying your documents in the future.
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Your Next Step to Score 24+ in BPSC Science & Technology
Consistent and focused practice is what ensures your qualification in the preliminary exam:
- Check the micro-syllabus table mentioned above to see which of Space & Defence or Bihar Tech Applications should receive more attention.
- Spend twenty minutes reviewing the essential launch vehicle stages or renewable energy targets in your revision notebook.
- Begin your free BPSC Science and Technology Mock Test 2027 practice session on our platform.
- Check your scorecard, look at your category accuracy heatmap, and read the step-by-step solutions for any questions that you got wrong.
- To practice filling in your answers on a physical OMR sheet, make sure you get used to bubbling in the answers before the actual test day.
