Power Plant - Day 5

1. Which does not belong to the group?

A. air injection system

B. mechanical injection system

C. time injection system

D. gas admission system

2. The instrument used to measured atmospheric pressure is:

A. rotameter

B. monometer

C. venturi

D. barometer

3. In a cooling tower, the water is cooled mainly by:

A. condensation

B. evaporation

C. convection

D. conduction

4. Air that controls the rate of combustion in the combustion chamber is known as:

A. secondary air

B. excess air

C. control air

D. primary air

5. What is the color code of air pipelines?

A. light blue

B. red

C. brown

D. violet

6. How many pounds of air are theoretically needed to burn one pound of diesel fuel oil?

A. 28

B. 14

C. 19

D. 22

7. How do you describe a non-flow process where in the volume remains constant?

A. isometric

B. isentropic

C. isobaric

D. isenthalpic

8. A major cause of air pollution resulting from the burning of fuel oils is:

A. nitrous

B. hydrogen

C. sulfur dioxide

D. silicon

9. For reciprocating compression slip at positive displacement.

A. cd = 1

B. cd > 1

C. cd < 1

D. cd = 0

10. For positive slip, the coefficient of discharge:

A. increases

B. decreases

C. zero

D. constant

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