MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Quiz
Chemical Engineering
Nuclear Power Engineering
Quiz 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Q.1
Which of the following is not a good moderating material?
Concrete
Boron
18/8 stainless steel
All of the above
Q.2
The mass number of an element is not changed, when it emits __________ radiations.
α & β
β & γ
γ & α
α, β, & γ
Q.3
Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.
1
2
3
7
Q.4
__________ moderator is used in a fast breeder reactor.
Graphite
Heavy water
Beryllium
No
Q.5
Critical mass is the minimum mass of nuclear fissile material required for the
Sustainment of chain reaction
Power generation on commercial scale
Economic power generation
None of these
Q.6
An ideal coolant for a nuclear reactor should
Be a good absorber of neutrons
Be capable of attaining high temperature, only when it is pressurised
Have high density, but low heat transfer co-efficient
Be free from radiation damage and non-corrosive
Q.7
Which of the following isotopes is not present in natural uranium?
U-238
U-234
U-235
U-232
Q.8
Mass of a positron is same as that of a/an
Electron
α-particle
Proton
Neutron
Q.9
__________ nuclear reactor does not require a heat exchanger to supply steam to power turbine.
Molten sodium cooled
Helium cooled
Boiling water
Pressurised water
Q.10
Which is not a fissile nuclear material?
U-233
U-235
U-238
Pu-239
Q.11
The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an __________ pump.
Electromagnetic
Reciprocating
Centrifugal
Volute
Q.12
A boiling water reactor is the one, in which the
Coolant water is allowed to boil in the core of the reactor
Coolant water, after being heated in the reactor core, generates steam in a boiler
Pressurised water is pumped into the core
Fuel and the coolant are thoroughly mixed to form a homogeneous solution
Q.13
A fast breeder reactor
Utilises fast neutrons for causing fission
Converts fertile material (e.g., U-238) into fissile material (Pu-239)
Normally employs molten sodium as coolant
All of the above
Q.14
Heat is generated in a nuclear reactor (thermal) by
Combustion of a nuclear fuel e.g. uranium
Fusion of atoms of uranium
Absorption of neutrons in uranium atoms
Fission of U-235 by neutrons
Q.15
Fuel for a nuclear reactor (thermal) is
Uranium
Plutonium
Radium
None of these
Q.16
A homogeneous reactor is the one, in which the
Fissile atoms are evenly distributed throughout the mass of nuclear reactor
Same substance (e.g. heavy water) is used as moderator & coolant
The fuel and the moderator is mixed to form a homogeneous material
All of the above
Q.17
The phenomenon of radioactivity was discovered by
Madam Curie
Bacquerrel
Roentgen
J.J. Thomson
Q.18
Fast breeder test reactor at Kalpakkam is designed for using
Thorium as a fertile material
U-238 as a fertile material
Helium as a coolant
Uranium ore directly as a fuel
Q.19
β-rays emission in radioactive disintegration is always accompanied by the emission of
γ-rays
α-rays
Neutrons
None of these
Q.20
A radioactive substance does not emit
Α-ray
Proton
Position
Β-ray
Q.21
Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec.
1
2200
3 x 10¹¹
9 x 10²¹
Q.22
Atoms of U-238 and U-235 differ in structure by three
Electrons and three protons
Protons
Neutrons
Electrons
Q.23
Percentage of U-238 in natural uranium is around
0.71
99.29
0.015
29.71
Q.24
Candu reactor is a __________ nuclcear reactor.
Natural uranium fuelled heavy water cooled & moderated
Highly enriched uranium (85% U-235) fuelled
Homogeneous
Fast breeder
Q.25
A control rod
Should have small absorption cross-section
Is generally made of boron, hafnium or cadmium
Should have large absorption cross-section
Both B and C
Q.26
In a homogeneous nuclear reactor, the __________ are mixed together.
Fuel & coolant
Fuel & moderator
Coolant & moderator
None of these
Q.27
An electron has a mass that is approximately __________ that of the proton.
1836 (approximately)
1/1836 (approximately)
1
∞
Q.28
Nucleus of
92
U
235
contains __________ protons.
92
235
143
325
Q.29
Thermal neutrons which are used to cause the fission of U-235 have energy __________ eV.
< 0.025
> 1
1-25
> 200
Q.30
Primary purpose of a __________ nuclear reactor is to supply a high neutron flux of the order of 10¹³ to 10¹⁴ neutrons/cm² second.
Research
Power
Breeder
Homogeneous
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page