PHP DATABASES HANDLING QUIZ

Extraction of uranium from its ore is done by __________ method.

Pyrometallurgical

Chemical

Electrometallurgical

Physical beneficiation

TRUE ANSWER : ?
YOUR ANSWER : ?

Fast breeder reactors do not

Use molten sodium as coolant

Use fast neutrons for fission

Use Th-232 as fissile fuel

Convert fertile material to fissile material

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ nuclear reactor does not require a heat exchanger to supply steam to power turbine.

Molten sodium cooled

Boiling water

Helium cooled

Pressurised water

TRUE ANSWER : ?
YOUR ANSWER : ?

The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235 , followed by nuclear fission is

3

1

2

4

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a fuel for a fusion reactor (thermonuclear reactor)?

Deuterium and tritium

Thorium

Heavy water

U-233

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of atomic radius to its nuclear radius is about

10¹²

10¹⁵

10⁸

10⁵

TRUE ANSWER : ?
YOUR ANSWER : ?

A control rod

Is generally made of boron, hafnium or cadmium

Should have large absorption cross-section

Both B and C

Should have small absorption cross-section

TRUE ANSWER : ?
YOUR ANSWER : ?

Both tritium and deuterium have the same number of

Neutrons

Electrons

Nucleons

Protons

TRUE ANSWER : ?
YOUR ANSWER : ?

Heavy water used in the nuclear reactors to slow down the speed of neutrons is

Water having dissolved salts of heavy metals

None of these

Highly purified water

A compound of oxygen and deuterium

TRUE ANSWER : ?
YOUR ANSWER : ?

Pressure in a Pressurised Water Reactor (PWR) is used for

Pressurising the water in the primary coolant circuit

Maintaining constant pressure in the primary cooling circuit under varying loads

None of these

Superheating the steam

TRUE ANSWER : ?
YOUR ANSWER : ?

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