MCQ
Fast Breeder Reactors MCQ - Practice Questions with Answers
Solve 87 Fast Breeder Reactors questions for RAS/RPSC preparation.
Practice questions
Q1Consider the following statements about Fast Breeder Reactors: 1. The PFBR is described as an advanced third-generation reactor. 2. The PIB release mentions inherent passive safety features for PFBR. 3. PIB states that PFBR lacks prompt shutdown capability in an emergency. Which of the statements given above are correct?
Statement 1 is correct because PIB calls PFBR an advanced third-generation reactor. Statement 2 is correct: passive safety features are mentioned. Statement 3 is false because the same passage says those features ensure prompt and safe shutdown during an emergency.
Q2Consider the following statements about the resource logic behind India's fast-breeder route: 1. NPCIL links the three-stage programme to judicious use of limited uranium and vast thorium reserves. 2. The programme links the fuel cycles of PHWRs and FBRs. 3. The 2026 PIB backgrounder says the Department of Atomic Energy designed the programme on a closed nuclear fuel cycle. 4. The first stage alone is described by NPCIL as the thorium-utilisation stage using uranium-233/thorium fuel. Which of the statements given above are correct?
Statements 1 and 2 are correct from NPCIL's FAQ, and statement 3 is correct from the PIB backgrounder. Statement 4 is incorrect: NPCIL places U-233/thorium fuel in Stage III; Stage I is natural-uranium PHWRs.
Q3Consider the following statements: 1. A breeder reactor produces more fissionable material than it consumes to generate energy. 2. A breeder reactor can employ uranium-238 or thorium, whereas conventional reactors rely on uranium-235 in Britannica's comparison. 3. Britannica describes all large fast breeder power plants as ordinary-water-cooled reactors. 4. In liquid-metal fast breeder reactors, heat can be transported from the core by liquid sodium coolant to heat exchangers. Which of the statements given above are correct?
Statements 1, 2 and 4 are correct as per Britannica's description of breeder reactors and liquid-metal fast breeder reactors. Statement 3 is incorrect because Britannica says large fast breeder power plants used liquid-metal fast breeder reactors, not ordinary-water-cooled reactors.
Q4Consider the following statements about FBTR fuel and capacity: 1. The IAEA description gives FBTR as a 40 MWt/13.2 MWe reactor. 2. FBTR's Mark I core used 70% PuC and 30% UC. 3. FBTR's Mark I core used 70% thorium carbide and 30% uranium carbide. Which of the statements given above are correct?
Statements 1 and 2 are correct: IAEA identifies FBTR as 40 MWt/13.2 MWe and says its Mark I core used 70% PuC and 30% UC. Statement 3 is false because the cited fuel was plutonium carbide plus uranium carbide, not thorium carbide plus uranium carbide.
Q5Consider the following statements: 1. The PFBR uses Uranium-Plutonium Mixed Oxide fuel. 2. The core of PFBR is surrounded by a blanket of Uranium-238. 3. Fast neutrons in the PFBR convert Uranium-238 into Uranium-233. Which of the statements given above are correct?
Statement 1 is true: PFBR uses uranium-plutonium MOX fuel. Statement 2 is true: its core is surrounded by a Uranium-238 blanket. Statement 3 is false: the cited conversion is Uranium-238 to Plutonium-239, not Uranium-233.
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6Consider the following statements about India's Fast Breeder Test Reactor: 1. FBTR is a test-bed for irradiation of fuels and materials for fast reactors. 2. FBTR is also a training ground for sodium technology and fast reactor operation. 3. FBTR is a 40 MWt, loop-type, sodium-cooled fast reactor. 4. FBTR is described by IGCAR as a demineralized light-water moderated and cooled reactor. Which of the statements given above are correct?
7Consider the following statements about IGCAR and FBTR: 1. IGCAR was established at Kalpakkam in 1971. 2. Its mission included developing the technology of sodium-cooled fast reactors. 3. FBTR was located 80 km north of Chennai. Which of the statements given above are correct?
8Consider the following statements: 1. The PFBR is described as an advanced third-generation reactor with inherent passive safety features. 2. Because it uses spent fuel from the first stage, FBR can significantly reduce nuclear waste generated. 3. The official release says FBR increases the need for large geological disposal facilities. 4. The capital cost and per-unit electricity cost of PFBR are described as comparable to other nuclear and conventional power plants. Which of the statements given above are correct?
9Consider the following statements about potential benefits of fast reactors: 1. Continuous recycling of nuclear fuel in fast reactors could lead to a 90% reduction in nuclear waste. 2. Fast reactors can break long-lived actinides into products that decay to natural levels after just 30 years. 3. If fuel is continuously recycled, fast reactors would require 100 times more uranium than water-cooled systems. 4. Extra neutrons in fast reactors can convert unused uranium into new plutonium atoms that can fission. Which of the statements given above are correct?
10Consider the following statements about Fast Breeder Reactors: 1. A breeder reactor produces more nuclear fuel than it consumes. 2. Fertile uranium-238 can be transformed into fissile plutonium-239 by neutron bombardment. 3. The NRC glossary describes breeder reactors as consuming more fuel than they produce. Which of the statements given above are correct?
11Consider the following statements about Fast Breeder Reactors: 1. The PFBR incorporates liquid sodium coolant technology. 2. Sodium is used in fast reactors because it strongly moderates neutrons like ordinary water. 3. Cooling a fast reactor core requires a heat-transfer medium with minimal neutron moderation. Which of the statements given above are correct?
12Consider the following statements about fuel and breeding in the PFBR: 1. The PFBR initially uses Uranium-Plutonium Mixed Oxide fuel. 2. Its blanket around the core is Uranium-238, which can be converted into Plutonium-239. 3. Thorium-232 is the fissile driver fuel used at initial PFBR core loading. 4. The reactor is designed to eventually use Thorium-232 in the blanket. Which of the statements given above are correct?
13Consider the following statements about agencies associated with the PFBR: 1. BHAVINI was approved by the Government in 2003 to construct and operate the PFBR. 2. The technology development and design of PFBR was indigenously done by IGCAR. 3. PFBR was commissioned by BHAVINI, a PSU under the Department of Atomic Energy. 4. AERB granted permission for first approach to criticality only after PFBR had begun commercial operation. Which of the statements given above are correct?
14Consider the following statements: 1. A fast reactor has no moderator and relies on fast neutrons. 2. Liquid metal, normally sodium, is used as coolant partly to avoid neutron moderation. 3. The conversion ratio in a normal reactor is around 1.6, while that in a fast reactor is always below 1.0. 4. Conventional fast breeder reactors use a fertile blanket of depleted uranium around the core. Which of the statements given above are correct?
15Consider the following statements about Fast Breeder Reactors: 1. The PFBR is presented as a bridge between current pressurised heavy water reactors and future thorium-based reactors. 2. Fast breeder technology helps prepare for large-scale use of thorium in the future. 3. Fast breeder technology is unrelated to India's thorium strategy. Which of the statements given above are correct?