Deck 4: Nuclear Power Reactors

Question 1

What does the top of the pressurizer in pressurized water reactor consists of at primary system pressure?

A)steam
B)air
C)water
D)fluids

Answer 1

steam

Question 2

Select the incorrect statement which supports PWR.

A)water is used as coolant
B)pwr is stable in operation
C)uses natural fuel

Answer 2

uses natural fuel

Question 3

Select the incorrect statement about PWR.

A)high primary circuit pressure requires a strong pressure vessel
B)corrosion is less in pwr
C)during fuel charging in pwr, the reactor has to be shut down at least for a month
D)pwr results in uneven heating

Answer 3

corrosion is less in pwr

Question 4

LWR stands for  

A)lower water reactor
B)line water reactor
C)liquefied water reactor
D)light water reactor

Question 5

In which reactor is the coolant in direct contact with the heat producing nuclear fuel?

A)fast breeder reactor
B)pressurized water reactor
C)boiling water reactor
D)heavy water reactor

Question 6

How many types of Boiling water reactor cycles are there?

A)2
B)3
C)4
D)5

Question 7

Which country invented CANDU heavy water reactor?

A)canada
B)germany
C)russia
D)bolivia

Question 8

CANDU stands for  

A)canadian natural darmstadtium uranium
B)canadian natural deuterium uranium
C)canadian natural dubnium uranium
D)canadian natural dysprosium uranium

Question 9

Which reactor consists of both fertile and fissile material?

A)fast breeder reactor
B)pressurize water reactor
C)boiling water reactor
D)converter reactor

Question 10

What is acronym of LMFBR?

A)liquid molecular fast boiling reactor
B)liquid metal fast breeder reactor
C)liquefied metal fast boiling reactor
D)liquid metal fast boiling reactor

Question 11

GCFBR stands for  

A)gas conditioned fast breeder reactor
B)gas cooled fast breeder reactor
C)gas conditioned fast boiling reactor.
D)gas cooled fast breeder reactor.

Question 12

Using Helium gas in GCFBR has many advantages.

Question 13

Which reactor uses orthometaerhenyl and paratherphenyl as coolant and moderator?

A)liquid metal fast breeder reactor
B)gas cooled fast breeder reactor
C)organic substance cooled reactor
D)candu heavy water reactor

Question 14

Nuclear plant is located near the area where cooling water is available.

Question 15

Which of the following may be used to measure the rate of nuclear disintegration?

A)geiger-muller counter
B)cold chamber
C)cyclotron
D)van de graph generator

Question 16

Which of the following may not need a moderator?

A)candu reactor
B)fast breeder reactor
C)homogeneous reactor
D)none of the mentioned

Question 17

One amu is equivalent to?

A)931 MeV
B)93.1 eV
C)9.31 eV
D)931 J

Question 18

Fast breeder reactors do not  

A)use molten sodium as coolant
B)use fast neutrons for fission
C)use Thorium-232 as fissile fuel
D)convert fertile material to fissile material

Question 19

A boiling water reactor is the one, in which the  

A)pressurised water is pumped into the core.
B)coolant water, after being heated in the reactor core, generates steam in a boiler
C)fuel and the coolant are thoroughly mixed to form a homogeneous solution
D)coolant water is allowed to boil in the core of the reactor

Question 20

Commercial power generation from fusion reactor is not yet possible, because

A)it is difficult to initiate fusion reaction
B)the fuel required (e.g. deuterium and tritium) is scarce
C)it is difficult to control fusion reaction
D)quantity of fuel required for initiating fusion reaction is prohibitively high

Question 21

Thermal shield is used in high powered nuclear reactors to  

A)absorb the fast neutrons
B)protect the walls of the reactor from radiation damage
C)slow down the secondary neutrons
D)protect the fuel element from coming in contact with the coolant

Question 22

Where was the first control fission of an atom carried out?

A)india
B)japan
C)russia
D)germany

Question 23

Which was the first country to develop an atomic bomb?

A)russia
B)united states
C)china
D)japan

Question 24

How many percentage of fissionable U-235

A)0.1%
B)0.5%
C)0.7%
D)1.5%