Energy Engineering Mock Test 5

10%

Question 1 of 10

1. What does regenerative air preheater consists of?

Propeller

Rotor

Piston

Skewers

Question 1 of 10

Question 2 of 10

2. What happens if atmospheric temperature is too low?

Engine consumes more amount of fuel

Exhaust produced comparatively more

Engine gets struck up

Engine misfires at low loads

Question 2 of 10

Question 3 of 10

3. Why does a large diesel engine plant require air?

To support combustion

To blow out fumes

To run the engine

To remove dust particles

Question 3 of 10

Question 4 of 10

4. Neutral safety switch varies due to changes in ________

ignition

brakes

applying clutch

gear transmission

Question 4 of 10

Question 5 of 10

5. In which type of cooling pond system are nozzles arranged on same elevation?

Double deck system

Direct flow system

Single deck system

Natural Flow system

Question 5 of 10

Question 6 of 10

6. Select the benefit of preheating the air?

Controlled steam capacity

Increased thermal efficiency

Decreased power consumption

Improved oxidation

Question 6 of 10

Question 7 of 10

7. Exhaust pipe is designed carefully in order to carry toxic gases away from the user machine.

False

True

Question 7 of 10

Question 8 of 10

8. Which is the recent difficulty added to the starting systems?

Fuel flow

Fuel consumption

Gear transmissions

Electronic controls

Question 8 of 10

Question 9 of 10

9. What happens due to high temperature of feeds water in the economizer?

Fuel consumption increases

Fuel mechanical efficiency increases

Fuel mechanical efficiency decreases

Fuel consumption decreases

Question 9 of 10

Question 10 of 10

10. How does the flow of air occur in natural draught cooling towers?

Because of difference in the volume of both the of airs

Variation in pressure of both cold outside air and humid inside air

Natural pressure head density between cold outside air and humid inside air

Due to the given air vents and vacuum ports

Question 10 of 10