Energy Engineering Mock Test 2

10%

Question 1 of 10

1. In which manner is the coal supplied from feeder to spreader in spreader stoker?

Feeding in alternate bulks

Feeding whenever necessary

Feeding at regular intervals

Feeding in continuous stream

Question 1 of 10

Question 2 of 10

2. C + O₂ => _______

2CO₂

2CO

CO₃

Question 2 of 10

Question 3 of 10

3. The calorific value of all organic compounds has the sign corresponding to a ________

Synthesis reaction

Endothermic reaction

Exothermic reaction

Single displacement reaction

Question 3 of 10

Question 4 of 10

4. The process of burning fuels in the presence of oxygen is called _________

Condensation

Induction

Ignition

Combustion

Question 4 of 10

Question 5 of 10

5. What is the significance of rate at which air is supplied in the under feed system?

Supports combustion

Increase depth of incandescent zone

Pushes up ignition zone

Burns fuel for long time

Question 5 of 10

Question 6 of 10

6. What is the most important factor that is essential for economical working of a power plant?

Proper maintenance Ash and other waste handling systems

Efficient transfer of heat energy to water

Rotational speed of turbines

Abundant fuel input

Question 6 of 10

Question 7 of 10

7. Which value is determined by bringing all products of combustion back to original pre-combustion temperature?

Higher calorific value

Flash point value

Fire point value

Low calorific value

Question 7 of 10

Question 8 of 10

8. Why is combustion rate faster when the usage of pulverized coal is done in pulverized fuel handling?

For using fuel in powdered form

The speed at which the coal is fed

Decrease in excess air

Due to greater surface area

Question 8 of 10

Question 9 of 10

9. In which direction does fuel and air in under-feed system move?

Same direction

Across

Counter direction

Opposite

Question 9 of 10

Question 10 of 10

10. When does master controller comes into action?

When there is variation in steam pressure

When there is variation in steam flow rate

When there is variation in draught fans

When there is variation in fuel supply

Question 10 of 10