1. In nuclear chain fission reaction every neutral causing fission results in production of:
a) 2.5 times the new neutron
b) Almost less than the one neutron
c) exactly one neutron
d) none of the above
2. In the options below which one of the isotope of the uranium can cause fission reaction:
a) U234
b) U235
c) U237
d) U238
3. What is the importance of moderator in nuclear reactor:
a) moderator controls the flow of water inlet
b) control the nuclear fission by absorbing the excess neutrons
c) control the nuclear fission by slowing down the neutrons
d) none of the above
4. Which is the material responsible for controlling the chain reaction in nuclear reactor:
a) boron
b) zirconium
c) beryllium
d) lead
5. Heavy water is used in nuclear reactor as:
a) coolent
b) moderator
c) both coolent and moderator
d) shut down poision
6. The function of the reflectors in nuclear power plant is:
a) it reflects the neutrons that are escaping from the core
b) it reflects the radiation escaping the core of the reactor
c) both (a) and (b)
d) all the above
7. Control rods in nuclear power plant is to:
a) to slow the neutrons thereby control the fission reaction
b) to shut down the reactor
c) both (a) and (b)
d) none of the above
8. The power output of the nuclear power station is proportional to:
a) the rate at which nuclear fission reaction occurs in the reactor core
b) square of the rate at which nuclear fission reaction occurs
c) square root of the rate at which the nuclear reaction occurs
d) none of the above
9. The efficiency of the nuclear power plant is lesser compared to thermal power plant because:
a) less heat rejection of heat in the condenser
b) higher temperature and pressure conditions
c) lower temperature and pressure conditions
d) auxiliary systems in nuclear power plant consume more power compared to thermal power plant
10. One kg of natural uranium gives energy which equivalent to:
a) 1000 kg of coal
b) 5000 kg of coal
c) 10,000 kg of coal
d) 50,000 kg of coal
a) 2.5 times the new neutron
b) Almost less than the one neutron
c) exactly one neutron
d) none of the above
2. In the options below which one of the isotope of the uranium can cause fission reaction:
a) U234
b) U235
c) U237
d) U238
3. What is the importance of moderator in nuclear reactor:
a) moderator controls the flow of water inlet
b) control the nuclear fission by absorbing the excess neutrons
c) control the nuclear fission by slowing down the neutrons
d) none of the above
4. Which is the material responsible for controlling the chain reaction in nuclear reactor:
a) boron
b) zirconium
c) beryllium
d) lead
5. Heavy water is used in nuclear reactor as:
a) coolent
b) moderator
c) both coolent and moderator
d) shut down poision
6. The function of the reflectors in nuclear power plant is:
a) it reflects the neutrons that are escaping from the core
b) it reflects the radiation escaping the core of the reactor
c) both (a) and (b)
d) all the above
7. Control rods in nuclear power plant is to:
a) to slow the neutrons thereby control the fission reaction
b) to shut down the reactor
c) both (a) and (b)
d) none of the above
8. The power output of the nuclear power station is proportional to:
a) the rate at which nuclear fission reaction occurs in the reactor core
b) square of the rate at which nuclear fission reaction occurs
c) square root of the rate at which the nuclear reaction occurs
d) none of the above
9. The efficiency of the nuclear power plant is lesser compared to thermal power plant because:
a) less heat rejection of heat in the condenser
b) higher temperature and pressure conditions
c) lower temperature and pressure conditions
d) auxiliary systems in nuclear power plant consume more power compared to thermal power plant
10. One kg of natural uranium gives energy which equivalent to:
a) 1000 kg of coal
b) 5000 kg of coal
c) 10,000 kg of coal
d) 50,000 kg of coal
