18 MAY 2021 CURRENT AFFAIRS QUIZ

A boiling water reactor uses following as fuel

Plutonium

U

Thorium

Enriched uranium

TRUE ANSWER : ?
YOUR ANSWER : ?

The percentage of carbon in bituminous coal is in the order of

30-50%

50-65%

20-40%

65-80%

TRUE ANSWER : ?
YOUR ANSWER : ?

Boiling water reactor employs

Boiler

Direct cycle of coolant system

Double circuit system of coolant cycle

Multi passes system

TRUE ANSWER : ?
YOUR ANSWER : ?

The following present serious difficulty in designing reactor shield

Beta particles

Alpha particles

Fast neutrons and gamma rays

Thermal neutrons

TRUE ANSWER : ?
YOUR ANSWER : ?

One gram of uranium will produce energy equivalent to approximately

100 tonnes of high grade coal

1 tonne of high grade coal

10 tonnes of high grade coal

4.5 tonnes of high grade coal

TRUE ANSWER : ?
YOUR ANSWER : ?

Pick up the wrong statement fast breeder reactors

Are liquid metal cooled

Operate at extremely high power densities

Use water as coolant

Produce more fuel than they consume

TRUE ANSWER : ?
YOUR ANSWER : ?

Breeder reactor has a conversion ratio of

Less than unity

More than unity

Zero

Unity

TRUE ANSWER : ?
YOUR ANSWER : ?

Artificial radioactive isotopes find application in

Nucleonic devices

Power generation

Nuclear fission

Medical field

TRUE ANSWER : ?
YOUR ANSWER : ?

When a reactor becomes critical, then the production of neutrons is

Exactly balanced by the loss of neutrons through leakage

Zero

Infinite

Initiated

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following nuclear reactor does not need a heat exchanger for generation of steam?

Pressurised water

Liquid metal cooled

Gas cooled

Boiling water

TRUE ANSWER : ?
YOUR ANSWER : ?

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