1.
Which is a good nuclear
fuel?
a. Uranium: 238
b. Neptunium: 239
c. Thorium: 236
d. Plutonium – 236
a. Uranium: 238
b. Neptunium: 239
c. Thorium: 236
d. Plutonium – 236
2.
Long distance
photography is facilitated by:
a.
Visible light
b.
X-rays
c.
Infra Red rays
d.
Ultra violet rays
3.
Which radioactive
pollutant has recently drawn the attention of the public due to its occurance
in the building materials?
a.
Radium
b.
Radon
c.
Thorium
4.
In an atomic explosion
enormous energy is released which is due to the:
a.
Conversions of neutrons
into protons
b.
Conversion of chemical
energy into nuclear energy
c.
Conversion of mechanical
energy into nuclear energy
d.
Conversion of mass into energy
5.
Which of the following
is used as a coolant in nuclear reactors ?
a. Heavy water
b. Cadmium
c. Liquid sodium
d. Graphite
a. Heavy water
b. Cadmium
c. Liquid sodium
d. Graphite
6.
The isotope of Uranium
capable of sustaining chain reaction is:
a.
U 235
b.
U 238
c.
U 239
d.
None of these
7.
Radioactive
disintegration of Uranium ultimately results in formation of:
a.
Radium
b.
Thorium
c.
Polonium
d.
Lead
8.
Atom bomb is made on the
basis of:
a.
Nuclear fusion
b.
Nuclear fission
c.
Both a & b
d.
None of these
9.
Which of the following
has least penetrating power?
a.
Alpha particles
b.
Beta particles
c.
Gamma particles
d.
All have same power
10.
What is increasing order of the wave lengths
of the following colours:
1. Orange
2. Indigo
3. Yellow
4. Violet
1. Orange
2. Indigo
3. Yellow
4. Violet
a.
1, 2, 3, 4
b.
3, 4, 1, 2
c.
4, 3, 2, 1
d.
4, 2, 3, 1
11.
Atoms are composed of:
a.
Electrons only
b.
Protons only
c.
Electrons & Protons
d.
Electrons & Nuclei
12.
The age of most ancient
geological formation is estimated by:
a.
Potassium-Argon method
b.
Ra-Si method
c.
C14 method
d.
Uranium-lead method
13.
Which of the following
is used as a moderator in nuclear reactor?
a. Ordinary water
b. Radium
c. Thorium
d. Graphite
14.
Isotopes are separated
by:
a.
Filtration
b.
Sublimation
c.
Distillation
d.
Crystalization
15.
Who suggested that the
most of the mass of atom is located in nucleus?
a.
Bohr
b.
Thomson
c.
Rutherford
d.
Avogadro
16.
Meson particles are
found in:
a.
R-rays
b.
X-rays
c.
Laser beam
d.
Cosmic rays
17.
An atom of an element
with mass number 23 and atomic number 11 will have:
a.
11 neutrons, 12 protons
and 11 electrons
b.
11 protons, 12 neutrons and 11 electrons
c.
11 protons, 12 electrons
and 11 neutrons
d.
23 protons and 11
electrons
18.
The location and energy
of an electron in an atom can be specified by:
a. Atomic mass
b. Atomic number
c. Quantum
numbers
d. None of these
19.
Old-written material,
which cannot be read easily can be read by:
a.
Cosmic Rays
b.
Ultraviolet rays
c.
Infra Red rays
d.
None of these
20.
In an atomic nucleus,
neutrons and protons are held together by:
a.
Gravitational forces
b.
Magnetic forces
c.
Exchange forces
d.
Coulombic forces