Question: Pressurised water reactor is designed________________?

• 1. for boiling pi water in the core
• 2. to use liquid sodium metal as coolant
• 3. to use intermediate coolant
• 4. to prevent the water coolant from boiling in the core

Question: In boiling water reactor, moderator is__________________?

• 1. coolant itself
• 2. ferrite rod
• 3. graphite rod
• 4. liquid sodium metal

Question: Half life of a radioactive isotope corresponds to the time required for half of the following to decay__________________?

• 1. electrons
• 2. protons
• 3. neutrons
• 4. atom

Question: Artificial radioactive isotopes find application in________________?

• 1. power generation
• 2. nucleonic devices
• 3. nuclear fission
• 4. medical field

Question: A fast breeder reactor uses following as fuel_________________?

• 1. enriched uranium
• 2. plutonium
• 3. thorium
• 4. U235

Question: A fast breeder reactor__________________?

• 1. uses graphite rods as moderator
• 2. has powerful moderator
• 3. has no moderator
• 4. uses ferrite material as moderator

Question: Each fission of U235 produces following number of fast neutrons per fission________________?

• 1. 1 neutron
• 2. 1 — neutrons
• 3. 1 – 2 neutrons
• 4. 2 — neutrons

Question: For economical operation of a nuclear plant__________________?

• 1. used fuel should be reprocessed
• 2. moderator should be used
• 3. coolant should be employed
• 4. control rods should be used

Question: A boiling water reactor uses following as fuel________________?

• 1. enriched uranium
• 2. plutonium
• 3. thorium
• 4. U

Question: Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal_________________?

• 1. centrifugal
• 2. axial
• 3. reciprocation
• 4. electromagnetic