Test: Nuclear Power Plant - 1 - Mechanical Engineering MCQ
20 Questions MCQ Test - Test: Nuclear Power Plant - 1
Uranium-238 is represented by 92U238. What does it represent?
The half life of radioactive radon is 3.8 days. The time at the end of which1/20th of the Radon sample will remain undecayed will be
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Consider the following nuclear fuels:
1. Pu239
2. U235
3. U233
4. Th232
What is the correct sequence of the above nuclear fuels in order of increasing half life?
A nucleus 92A235 A emits alpha and beta particles and is converted, to thenucleus 82By . The total number of alpha and beta particles emitted in thereaction is 11. Their respective numbers are:
Shielding in a nuclear reactor is generally done to protect against
Which one of the following statements is correct? The nuclear radiators produced in a reactor, which must be shielded, are:
Which one of the following pairs of materials is used as moderators in nuclear reactors
Match List I with List II and select the correct answer (these pertain to nuclear reactors).
Match List I (Material) With List II (Application) and select the correct answer.
Which one of the following is correct ? A nuclear reactor is said to be critical when the neutron population in the reactor core is
Assertion (A): Pressurized water reactor (PWR) nuclear power plants use superheated steam.
Reason (R): An increase in the superheat at constant pressure increases the cycle efficiency.
Assertion (A): The thermal efficiency of a nuclear power plant using a boiling water reactor is higher than of a plant using a pressurized water reactor.
Reason (R): In a boiling water reactor, steam is directly allowed to be generated inthe reactor itself, whereas in a pressurized water reactor, steam is generated in aseparate boiler by heat exchanger device using water of the primary circuit which absorbs the fission energy.
Match List I with List II and select the correct answer using the codes given below
the lists:
Assertion (A): A breeder reactor does not require moderator.
Reason (R): The parasite absorption of neutrons is low.
Enriched uranium is required as fuel in a nuclear reactor, if light water isused as moderator and coolant, because light water has
Which one of the following statements is correct ?
The mass defect is
Which one of the following pairs is not correctly matched?
Uranium 238 is represented as 92U238 . What does it imply?
The energy released during the fission of one atom of Uranium-235 inmillion electron volts is about
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