MCQ
Nuclear Energy MCQ - Practice Questions with Answers
Solve 138 Nuclear Energy questions for RAS/RPSC preparation.
Practice questions
Q1Consider the following statements regarding the Atomic Energy Regulatory Board (AERB) clearance for Kudankulam Nuclear Power Project Units 5 and 6 reported on 30 April 2026: 1. Units 5 and 6 of the Kudankulam Nuclear Power Project use the indigenous Pressurised Heavy Water Reactor (PHWR) technology with a capacity of 700 MW(e) each. 2. The Atomic Energy Regulatory Board (AERB) is a statutory body established under the Constitution of India and reports directly to the Ministry of Power. Which of the statements given above is/are correct?
Statement 1 is incorrect: Units 5 and 6 of the Kudankulam Nuclear Power Project use Russian-origin VVER (Water-Water Energetic Reactor) technology with a capacity of 1,000 MW(e) each, not the indigenous PHWR technology. The PHWR is an Indian-designed reactor used at plants like Kakrapar. Statement 2 is incorrect: The AERB was constituted on 15 November 1983 by the President of India under the Atomic Energy Act, 1962, not under the Constitution of India. Additionally, the AERB reports to the Atomic Energy Commission of India (under the Department of Atomic Energy, which functions under the Prime Minister Office), not to the Ministry of Power.
Q2Consider the following statements about AHWR design particulars: 1. AHWR uses (Th, U-233)MOX and (Th, Pu)MOX as fuel. 2. Its core has 513 lattice locations. 3. Its reactor protection system comprises three independent fast-acting shutdown systems. 4. It has 452 coolant-channel assemblies. Which of the statements given above are correct?
Statements 1, 2 and 4 are true from BARC's AHWR page. Statement 3 is false because the reactor protection system is stated to comprise two independent fast-acting shutdown systems, not three.
Q3Consider the following Assertion and Reason: Assertion: Apsara occupies a landmark place in the history of Asian nuclear research reactors. Reason: Apsara achieved criticality on August 4, 1956 and was the first research reactor in Asia to achieve criticality. Choose the correct answer.
The Assertion is true because Apsara is historically significant in Asian nuclear research. The Reason is also true: it achieved criticality on August 4, 1956 and was the first research reactor in Asia to do so. That first-in-Asia criticality directly explains why the Assertion describes Apsara as a landmark.
Q4Match the entries related to SMR-55 under the Nuclear Energy Mission: List I 1. SMR-55 2. Institution that has undertaken its design and development work List II a. 55 MWe Small Modular Reactor b. BARC Select the correct matching.
The correct matching is SMR-55 with a 55 MWe Small Modular Reactor, and the institution with BARC. The cited fact says BARC has undertaken design and development work on SMR-55, which is a 55 MWe Small Modular Reactor. Pairing SMR-55 with BARC confuses the reactor name with the institution, while pairing the institution with the reactor capacity confuses the role of the organisation with the technical description.
Q5Match the reference date with the correct installed nuclear power generation capacity of India, as stated in the cited capacity-addition release.
The correct pairing is 31 January 2026 with 8,780 MW. The 7,480 MW and 8,180 MW figures are close but do not match the cited data point, and 31 March 2026 changes the reference date even though it keeps the same capacity figure.
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More questions
6Consider the sequence: reactor type, stated scale, intended use. Which option correctly arranges the Nuclear Energy Mission fact?
7Assertion: AERB's mission covers the use of both ionising radiation and nuclear energy in India. Reason: Its mission is limited to promoting faster construction of nuclear power plants. Choose the correct answer.
8Consider the following statements about the Department of Atomic Energy: 1. DAE was created primarily as an electricity distribution company under a state government. 2. DAE's work includes nuclear power technology and applications of radiation and radioisotopes. 3. Research reactors are part of India's atomic energy research and radioisotope ecosystem. 4. DAE's mandate excludes accelerators, lasers and advanced technology programmes. Which of the statements given above are correct?
9Consider the following statements: 1. The Advanced Heavy Water Reactor is designed to demonstrate advanced safety features and thorium utilization. 2. The Advanced Heavy Water Reactor is a 300 MWe vertical pressure tube type reactor. 3. The Advanced Heavy Water Reactor is moderated by light water and cooled by heavy water. Which of the statements given above are correct?
10Assertion: RAPP-7 achieved rated power operation at 05:15 hrs on February 11, 2026. Reason: This milestone followed compliance with AERB clearances. Select the correct answer.
11For nuclear and radiation facilities in India, which institution is the competent regulatory body for granting, renewing, withdrawing and revoking consents?
12Consider the following statements: 1. Thorium-232 is a fissile material and can directly sustain a reactor chain reaction like uranium-235. 2. Thorium-232 can be converted into uranium-233 by neutron capture related reactions. 3. Uranium-233 is envisaged as fuel in the third stage of India's nuclear programme. Which of the statements given above are correct?
13As per the NPCIL Overview, which description correctly captures NPCIL's operated reactor fleet and the treatment of RAPS-1?
14Consider the following statements about nuclear regulation in India: 1. AERB is associated with regulation of nuclear and radiation safety in India. 2. AERB approvals can be project-stage specific, such as equipment erection, rather than only final commercial-operation licences. 3. NPCIL is the regulator that grants safety clearances to AERB. 4. Regulatory review may include design and civil construction progress before a project-stage permission. Which of the statements given above are correct?
151. AERB permitted Major Equipment Erection at Kudankulam Units 5 and 6. 2. The permission followed review of design and civil construction progress. 3. The permission announced commercial operation of Kudankulam Units 5 and 6. 4. The permitted equipment set included reactor pressure vessels, steam generators and coolant pumps. Which of the statements given above are correct?