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UPSC Exam  >  UPSC Tests  >  Test: Nuclear Reactors and Their Types - UPSC MCQ

Test: Nuclear Reactors and Their Types - UPSC MCQ


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10 Questions MCQ Test - Test: Nuclear Reactors and Their Types

Test: Nuclear Reactors and Their Types for UPSC 2024 is part of UPSC preparation. The Test: Nuclear Reactors and Their Types questions and answers have been prepared according to the UPSC exam syllabus.The Test: Nuclear Reactors and Their Types MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Nuclear Reactors and Their Types below.
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Test: Nuclear Reactors and Their Types - Question 1
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What is the primary purpose of a nuclear reactor in a nuclear power plant?

Detailed Solution for Test: Nuclear Reactors and Their Types - Question 1
The primary purpose of a nuclear reactor in a nuclear power plant is to control the release of energy from splitting atoms, specifically certain elements like uranium, in order to generate heat. This heat is used to produce steam, which in turn drives turbines to generate electricity.
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What is the function of control rods in a nuclear reactor?

Detailed Solution for Test: Nuclear Reactors and Their Types - Question 2
Control rods in a nuclear reactor are made of neutron-absorbing materials and are used to absorb excess neutrons, thereby controlling the rate of the nuclear fission reaction. They play a crucial role in regulating and maintaining the reactor's power output.
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Test: Nuclear Reactors and Their Types - Question 3
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In a Boiling Water Reactor (BWR), at what temperature does the water in the core typically boil?

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In a Boiling Water Reactor (BWR), the water in the core typically boils at around 285°C. This boiling water is used to drive turbines for electricity generation.
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Which type of reactor uses ordinary water as both a coolant and a moderator?
Detailed Solution for Test: Nuclear Reactors and Their Types - Question 4
The Pressurized Water Reactor (PWR) is a type of reactor that uses ordinary water both as a coolant and a moderator. Water in the reactor core is maintained at high pressure to prevent boiling and to facilitate heat transfer for electricity generation.
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Which type of reactor uses heavy water (D2O) as a moderator?
Detailed Solution for Test: Nuclear Reactors and Their Types - Question 5
The Pressurized Heavy Water Reactor (PHWR) uses heavy water (D2O) as a moderator. Heavy water is effective at slowing down neutrons and enhancing the nuclear fission process.
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What is the primary purpose of a steam generator in a nuclear power plant?
Detailed Solution for Test: Nuclear Reactors and Their Types - Question 6
The primary purpose of a steam generator in a nuclear power plant is to transfer heat from the primary coolant (usually water) to produce steam for electricity generation. This steam is used to drive turbines and generate electrical power.
Test: Nuclear Reactors and Their Types - Question 7
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What type of reactor uses fast neutrons and is capable of generating power from plutonium while producing more plutonium from uranium-238?
Detailed Solution for Test: Nuclear Reactors and Their Types - Question 7
Fast Neutron Reactors (FNRs) use fast neutrons and have the capability to generate power from plutonium while also producing more plutonium from uranium-238. They are sometimes referred to as fast breeder reactors (FBRs) when they produce more fissile material than they consume.
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Which structure is designed to protect a nuclear reactor from outside intrusion and to shield against radiation in case of a serious malfunction?
Detailed Solution for Test: Nuclear Reactors and Their Types - Question 8
The containment structure is designed to protect a nuclear reactor from outside intrusion and to shield against radiation in case of a serious malfunction. It is typically made of thick concrete and steel to provide a robust barrier.
Test: Nuclear Reactors and Their Types - Question 9
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What is the primary purpose of burnable poisons in a nuclear reactor?
Detailed Solution for Test: Nuclear Reactors and Their Types - Question 9
Burnable poisons in a nuclear reactor are used to absorb excess neutrons and slow down the reaction. They help in controlling and regulating the reactor's power output by compensating for the build-up of neutron absorbers in the fuel as it burns.
Test: Nuclear Reactors and Their Types - Question 10
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Which type of reactor is known for its use of graphite moderator and carbon dioxide as a primary coolant?
Detailed Solution for Test: Nuclear Reactors and Their Types - Question 10
The Advanced Gas-Cooled Reactor (AGR) is known for its use of graphite as a moderator and carbon dioxide as a primary coolant. It operates at high temperatures and has a relatively high thermal efficiency of about 41%.
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