APSC MCQs / APSC Prelims Practice Questions based on Assam Tribune (Daily) –01/10/2026
For APSC CCE and other Assam Competitive examinations aspirants, practicing Daily MCQs is vital. This blog covers most important Prelims questions from the Assam Tribune today (01-10-2026). These issues are key for both APSC Prelims syllabus, offering insights into the important topics of current affairs.
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APSC MCQs / APSC Prelims Practice Questions (Date: 01/10/2026)
Topic 1: Monsoon Dynamics, Climatology & Drought Management
Q1. With reference to the Indian Summer Monsoon and its driving mechanisms, consider the following statements:
- El Niño conditions in the central and eastern Pacific Ocean always result in a severe monsoon drought over the Indian subcontinent.
- A positive Indian Ocean Dipole (IOD) characterized by warmer waters in the western Indian Ocean generally aids the monsoon flow towards India.
- The Madden–Julian Oscillation (MJO) is a stationary localized atmospheric phenomenon that influences only the peninsular rainfall.
Which of the statements given above is/are correct?
- (a) 1 and 2 only
- (b) 2 only
- (c) 2 and 3 only
- (d) 1, 2 and 3
Answer: (b)
Explanation: Statement 1 is incorrect because the relationship between El Niño and Indian monsoon rainfall is not strictly deterministic; several El Niño years have seen normal or above-normal rainfall due to counter-influences like a positive IOD. Statement 2 is correct; a positive IOD creates an anomalous pressure gradient that pushes moisture-laden winds toward the Indian landmass. Statement 3 is incorrect; the MJO is an eastward-moving, non-stationary tropical convective wave that circles the globe in 30–60 days, influencing broad regional precipitation.
Q2. With reference to the Long Period Average (LPA) used by the India Meteorological Department (IMD), consider the following statements:
- The IMD currently uses the 50-year average calculated for the period 1971–2020 as the climatological reference benchmark for all-India rainfall.
- A monsoon season is classified as “deficient” when the actual rainfall across the country is less than 90% of the LPA.
Which of the statements given above is/are correct?
- (a) 1 only
- (b) 2 only
- (c) Both 1 and 2
- (d) Neither 1 nor 2
Answer: (c)
Explanation: Both statements are correct. IMD updated its base period to the 1971–2020 cycle (which replaced 1961–2010), representing the latest 50-year climatological normal. Under IMD categorization, monsoon rainfall is classified as Deficient (<90% of LPA), Below Normal (90–95% of LPA), Normal (96–104% of LPA), Above Normal (105–110% of LPA), and Excess (>110% of LPA).
Q3. Consider the following stages of drought development:
- Hydrological drought
- Meteorological drought
- Socio-economic drought
- Agricultural drought
Which of the following is the correct chronological sequence of their typical onset?
- (a) 2 — 4 — 1 — 3
- (b) 2 — 1 — 4 — 3
- (c) 4 — 2 — 1 — 3
- (d) 1 — 2 — 4 — 3
Answer: (a)
Explanation: Drought generally originates as a Meteorological drought (prolonged rainfall deficit over an area). If the deficit continues, it causes soil-moisture deficiency, leading to Agricultural drought (crop stress and failure). Continued deficiency then depletes surface reservoirs, streams, and aquifers, causing Hydrological drought. Finally, the cumulative scarcity triggers Socio-economic drought, disrupting food supply, drinking water availability, and economic livelihoods.
Q4. Why does a seasonal monsoon rainfall deficit frequently coexist with flash floods in regions like Northeast India?
- (a) Flash floods occur only due to dam water releases and have no meteorological connection.
- (b) Soil-moisture stress from dry spells reduces percolation, causing high runoff during concentrated, high-intensity rain events.
- (c) High evapotranspiration instantly turns base river flow into cloudbursts over the plains.
- (d) Northeast India receives rainfall solely through retreating monsoons during the deficit period.
Answer: (b)
Explanation: Seasonal rainfall totals mask temporal and spatial distribution. Extended dry intervals cause soil compaction and dryness, sharply decreasing its infiltration capacity. When short-duration, high-intensity rainfall spikes occur, water cannot infiltrate the ground and rapidly converts into excessive surface runoff, overwhelming natural drainage channels and triggering flash floods despite an overall seasonal deficit.
Topic 2: Artificial Intelligence Governance & Emerging Technologies
Q5. In the context of Artificial Intelligence development and ethics, consider the following pairs:
- AI Alignment: Ensuring an autonomous model’s behavior matches intended human values and objectives.
- Red-Teaming: Systematic adversarial stress-testing to deliberately expose safety flaws and jailbreaks.
- Explainable AI (XAI): Restricting an AI model to operate without any human intervention or oversight.
How many of the above pairs are correctly matched?
- (a) Only one pair
- (b) Only two pairs
- (c) All three pairs
- (d) None of the pairs
Answer: (b)
Explanation: Pairs 1 and 2 are correctly matched. Pair 3 is incorrectly matched; Explainable AI (XAI) refers to methods and techniques that allow human users to comprehend and trust the results and decision-making processes created by machine learning algorithms. The concept of operating without human oversight describes high machine autonomy or “out-of-the-loop” systems, not XAI.
Q6. With reference to global AI regulatory approaches, consider the following statements:
- The European Union’s AI Act adopts a horizontal, risk-based approach that bans certain unacceptable-risk AI practices.
- The United States model relies heavily on a centralized statutory licensing board with mandatory criminal penalties for non-compliance.
- General-purpose AI models posing systemic risks under the EU framework are subject to mandatory red-team testing and serious incident reporting.
Which of the statements given above is/are correct?
- (a) 1 and 2 only
- (b) 2 and 3 only
- (c) 1 and 3 only
- (d) 1, 2 and 3
Answer: (c)
Explanation: Statements 1 and 3 are correct. The EU AI Act categorizes AI systems into unacceptable risk (banned), high risk, and general-purpose systems with systemic risk, requiring strict safety evaluations and incident reporting. Statement 2 is incorrect; the US framework relies primarily on voluntary safety pledges, executive guidelines, market-led self-policing, and sector-specific enforcement rather than a single statutory licensing board with mandatory criminal codes.
Q7. With reference to the IndiaAI Mission, consider the following statements:
- It aims to build a sovereign computing infrastructure by democratizing access to high-end GPU clusters for startups and researchers.
- It completely exempts domestic artificial intelligence models from the provisions of the Digital Personal Data Protection Act.
Which of the statements given above is/are correct?
- (a) 1 only
- (b) 2 only
- (c) Both 1 and 2
- (d) Neither 1 nor 2
Answer: (a)
Explanation: Statement 1 is correct; one of the primary pillars of the IndiaAI Mission is the IndiaAI Compute Capacity, establishing a high-performance computing infrastructure of over 10,000 GPUs to assist startups and academic researchers. Statement 2 is incorrect; domestic AI developers must adhere to national data protection and privacy laws, including the Digital Personal Data Protection (DPDP) Act, when sourcing, storing, and processing individual datasets for training.
Q8. Which of the following best defines the term “Information Asymmetry” in the context of corporate AI self-regulation?
- (a) The inability of AI algorithms to process asymmetric encrypted data in real time.
- (b) The significant knowledge gap where tech firms understand model architectures and safety risks far better than public regulators and citizens.
- (c) A disparity in internet bandwidth availability between rural and urban populations.
- (d) The ethical dilemma of balancing proprietary software weights against open-source public models.
Answer: (b)
Explanation: Information asymmetry in technology policy refers to the condition where private technology companies possess vastly superior technical information regarding their training datasets, safety flaws, and algorithmic capabilities compared to state regulators, civil society, and end-users, making external validation and voluntary self-policing difficult to enforce.
Topic 3: Green Energy Corridor & Clean Energy Transition
Q9. With reference to the Green Energy Corridor (GEC) initiative in India, consider the following statements:
- It is aimed primarily at setting up rooftop solar photovoltaic panels across residential urban areas.
- GEC Phase-III incorporates the installation of Battery Energy Storage Systems (BESS) alongside intra-state transmission lines.
- The evacuation infrastructure helps prevent the curtailment of renewable power caused by transmission bottlenecks.
Which of the statements given above is/are correct?
- (a) 1 and 2 only
- (b) 2 and 3 only
- (c) 1 and 3 only
- (d) 1, 2 and 3
Answer: (b)
Explanation: Statement 1 is incorrect; GEC is a dedicated high-voltage grid transmission infrastructure program meant to evacuate bulk renewable power from generation-rich regions to consumption centers, not a distributed rooftop solar program. Statements 2 and 3 are correct; GEC-III integrates 50 GWh of BESS to balance intermittency and actively prevents grid curtailment (deliberate shedding of clean generation due to line congestion).
Q10. In the execution of infrastructure projects under Green Energy Corridor Phase-III, consider the following mechanisms:
- Greenfield Projects: Executed through Tariff-Based Competitive Bidding (TBCB).
- Brownfield Projects: Executed on a Cost-Plus Basis (CPB).
Which of the pairs given above is/are correctly matched?
- (a) 1 only
- (b) 2 only
- (c) Both 1 and 2
- (d) Neither 1 nor 2
Answer: (c)
Explanation: Both pairs are correctly matched. Under official GEC-III project guidelines, new intra-state transmission lines (greenfield) are awarded through competitive market bidding (TBCB) under a Build-Own-Operate-Maintain (BOOM) framework, while the modernization and capacity expansion of existing lines (brownfield) are undertaken on a regulated cost-plus basis (CPB) by State Transmission Utilities.
Q11. In the electricity sector, what is the functional difference between Gigawatt (GW) and Gigawatt-hour (GWh)?
- (a) GW measures instantaneous power generation capacity, while GWh measures the total quantity of energy generated or stored over time.
- (b) GW is used strictly for non-fossil energy, while GWh is reserved for conventional thermal power plants.
- (c) GW denotes alternating current (AC) lines, while GWh represents direct current (DC) transmission.
- (d) GW represents the total battery storage reserve, while GWh represents peak instantaneous line load.
Answer: (a)
Explanation: Gigawatt (GW) is a unit of power representing the maximum instantaneous capacity or rate at which a plant can deliver electricity ( ). Gigawatt-hour (GWh) is a unit of energy representing power multiplied by time ( maintained for one hour), making it the standard metric for quantifying battery storage capacity and total seasonal electricity generation.
Q12. What primary operational problem does Battery Energy Storage Systems (BESS) solve in a renewable-heavy power grid?
- (a) It eliminates the need for any high-voltage transmission lines between states.
- (b) It addresses renewable intermittency by absorbing excess power during generation peaks and discharging it during demand surges.
- (c) It replaces synchronous condensers and transformers with direct chemical electrolysis.
- (d) It chemically neutralizes greenhouse gas emissions emitted by coal-fired thermal plants on the same grid.
Answer: (b)
Explanation: Renewable sources like solar and wind are intermittent (solar peaks around midday, whereas peak consumer demand occurs in the evening). BESS provides grid flexibility and stability by charging during afternoon surplus generation (preventing solar curtailment) and discharging power into the transmission lines during evening non-solar peak hours.
Topic 4: Semiconductor Manufacturing & Supply Chains
Q13. In the semiconductor manufacturing value chain, how does an Outsourced Semiconductor Assembly and Test (OSAT) facility differ from a Wafer Fabrication (Fab) facility?
- (a) An OSAT plant manufactures raw silicon ingots, whereas a Fab converts ingots into printed circuit boards.
- (b) A Fab handles front-end manufacturing by etching integrated circuits onto silicon wafers, while an OSAT facility handles back-end packaging, assembly, and testing.
- (c) An OSAT plant creates semiconductor intellectual property (IP), while a Fab only handles packaging.
- (d) A Fab operates entirely without cleanroom conditions, whereas an OSAT requires Class-1 cleanrooms.
Answer: (b)
Explanation: Semiconductor fabrication (Fab) is the front-end, highly capital-intensive stage where microscopic electronic circuits are photolithographically etched onto bare silicon wafers. OSAT (or ATMP) is the back-end stage where completed silicon wafers are diced into individual dies, connected (via wire bonding or flip-chip techniques), housed in protective casing, and tested for performance before integration into commercial electronics.
Q14. With reference to ancillary inputs required in semiconductor assembly and testing, consider the following pairs:
- Silane and Nitrogen Trifluoride: Specialty industrial gases.
- Quartz and Ceramic Chambers: Precision-machined mechanical components.
- Burn-in Boards and Sockets: Electrical validation and stress-testing equipment.
How many of the above pairs are correctly matched?
- (a) Only one pair
- (b) Only two pairs
- (c) All three pairs
- (d) None of the pairs
Answer: (c)
Explanation: All three pairs are correctly matched. Advanced OSAT and semiconductor plants require a deep ancillary base: specialty ultra-pure gases (like silane and nitrogen trifluoride) for chamber processing, precision ceramic and quartz parts for temperature-resistant mechanical handling, and specialized burn-in test boards and sockets for thermal and electrical stress testing of packaged chips.
Q15. With reference to the Semicon India Programme, consider the following statements:
- It provides fiscal support of up to 50% of the project cost on an equal footing for setting up silicon fabs and packaging (OSAT/ATMP) facilities.
- It includes a Design Linked Incentive (DLI) scheme to nurture domestic fabless chip design startups.
Which of the statements given above is/are correct?
- (a) 1 only
- (b) 2 only
- (c) Both 1 and 2
- (d) Neither 1 nor 2
Answer: (c)
Explanation: Both statements are correct. The Union Government modified the Semicon India Programme to provide uniform fiscal support of 50% of project costs across all key segments: Silicon Fabs, Display Fabs, Compound Semiconductors, Silicon Photonics, and OSAT/ATMP units. It also contains the DLI component offering financial incentives and design infrastructure support for domestic integrated circuit (IC) design companies.
Q16. Which of the following techniques is commonly used in semiconductor packaging to directly connect a silicon die to an external substrate using solder bumps instead of peripheral wires?
- (a) Wire Bonding
- (b) Flip Chip
- (c) Czochralski crystal pulling
- (d) Chemical Vapor Deposition
Answer: (b)
Explanation: In traditional Wire Bonding, fine gold or copper wires connect the top perimeter of the chip die to the packaging leads. In Flip Chip packaging, the semiconductor die is flipped upside-down, and electrical connections are made directly across the surface area using conductive solder bumps. This reduces footprint, increases input/output connection density, and improves high-frequency electrical performance. Czochralski pulling is used for creating raw silicon ingots, while Chemical Vapor Deposition is a front-end fab deposition process.
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