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STEAM BOILER QUIZ-II

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

Why is high-quality steel used to make boilers

a)

Its cheaper to produce

b)

It's easier to bend and use in the manufacturing process

c)

Because boilers are subjected to high stress and heat during operation

d)

to reduce cost

2.

What forces are a boiler subjected to during operation

a)

compression

b)

tension

c)

shear

d)

all of the above

3.

It is defined as a component in the plant cycle that consists of a closed vessel that uses the heat produced by the combustion of fuel to efficiently vaporize and convert water into steam at the desired temperature and pressure.

a)

Steam Drum

b)

Boiler

c)

Furnace

d)

Reheater

4.

________is the transfer of heat through a solid object, or between two objects, as a result of physical contact.

a)

Conduction

b)

Convection

c)

Radiation

5.

It is an extremely high-temperature vapor generated by heating the saturated steam obtained by boiling water.

a)

Superheated Steam

b)

Saturated Steam

c)

Unsaturated Steam

d)

Vapor

6.

_______ is the transfer of heat within a fluid, that is a liquid or gas. It is caused by a mixing action within a fluid.

a)

Conduction

b)

Convection

c)

Radation

d)

Combustion

7.

The three ingredients needed to start a fire are fuel, heat, and ___.

a)

carbon dioxide

b)

combustible material

c)

nitrogen

d)

oxygen

8.

Which type of boiler should not be used for high pressure steam applications

a)

Cast iron

b)

Fire tube

c)

Water tube

d)

Straight tube

9.

This boiler has flue gasses passing around the tubes and water flowing through the tubes

a)

Fire tube

b)

Cast iron

c)

Condensing

d)

Water tube

10.

What is created by the boilers at the power plant?

a)

Smoke

b)

Steam

c)

Pollution

11.

Air preheater is used to preheat air with the help of ______

a)

Air

b)

Flue gases

c)

Water

d)

Steam

12.

The following is the correct order of energy conversion in thermal power plants

a)

Chemical energy – Mechanical energy – Electrical energy

b)

Mechanical energy – Chemical energy – Electrical energy

c)

Wind energy – Mechanical energy – Electrical energy

d)

Heat energy – Electrical energy – Mechanical energy

13.

In thermal power plants, the dust of flue gases is trapped by

a)

Precipitator

b)

Economizer

c)

Superheater

d)

Air preheater

14.

The following is not a component of Thermal power plant

a)

Condenser

b)

Cooling tower

c)

Turbine

d)

Fuel tank

15.

The draught produced by the chimney if due to the ____ difference between the column of hot gases inside the chimney and the cold air outside.

a)

Temperature

b)

Potential

c)

Density

d)

None of the above