Energy Engineering Mock Test 3

10%

Question 1 of 10

1. What is the use of baffles in the gravitational separators?

To separate types of dust

To blow the dust

To control the flow of dust particles

To settle the dust by letting them to strike

Question 1 of 10

Question 2 of 10

2. What is Baghouse?

Filters arranged randomly

Filters arranged throughout the system

Filters arranged in parallel form

Filters arranged alternatively

Question 2 of 10

Question 3 of 10

3. Where should coal be dumped?

Near the plant

On solid ground

By mixing with other form of fuels

In the water

Question 3 of 10

Question 4 of 10

4. Cyclone separators are also known as __________

Zephyr cleaners

Squall

Pre-cleaners

Twist cleaners

Question 4 of 10

Question 5 of 10

5. The secondary air in the stream-liner coal burner is fed flames from which direction?

Along the fuel

Opposite to the fuel flow

At Right angle

At straight angle

Question 5 of 10

Question 6 of 10

6. In which state would be the soot blower when it’s not in use?

Dry and hot

Dry and cooled

Dry and uncooled

Wet and cooled

Question 6 of 10

Question 7 of 10

7. What happens when high voltage is applied to the electrodes in electric dust collectors?

Ions move from emitting electrode to collecting electrode

The whole system gets charged

Forms uniform electric field

Corona is formed

Question 7 of 10

Question 8 of 10

8. What is the purpose of rotary scoop shaped rejecter arms in impact mill?

To eliminate rocks and solid particles that has mixed up with the coal

To eliminate ash from the pulverizer

To send back the coal back into grinder for second run

To throw the large particles back into the grinder

Question 8 of 10

Question 9 of 10

9. Why is direct firing system considered better than bin system in pulverizer fuel firing?

The transportation of coal is much more complex

It has long operating procedure

The initial cost of system is very high

The auxiliaries used in system consume large amount of power

Question 9 of 10

Question 10 of 10

10. What is the function of Gab bucket conveyor in coal handling?

To crush the coal

To separate crushed coal and powdered coal

To move coal from one place to another

To lift the coal vertically

Question 10 of 10