Energy Engineering Mock Test 4

10%

Question 1 of 10

1. What is the major difficulty of the La-Mont boiler?

Deposition of salts

Boiler working is slow

Unstable water circulation

Overheating of the components

Question 1 of 10

Question 2 of 10

2. What is the function of boiler?

To generate steam at varying pressure

To burn the fuel in a confined closed system with the supply of air

To generate steam at constant pressure

To produce flue gases by burning fuel at a given pressure

Question 2 of 10

Question 3 of 10

3. What is the pressure range between which Lamont boilers operates?

80-120bar

450-560bar

120-160bar

180-360bar

Question 3 of 10

Question 4 of 10

4. By what is natural draught produced?

Air duct

Air blower

Chimney

Locomotive exhaust

Question 4 of 10

Question 5 of 10

5. Using which of the given formula the chimney height is calculated to get the answer of 67.4m when the coal burnt is 18.8TPH and considering 0.5% of sulfur content in coal?

H = 12(Q)¹³

H = 14(Q)¹³

H = 17(Q)¹³

H = 22(Q)¹³

Question 5 of 10

Question 6 of 10

6. Chances of sediments depositing inside the water tubes in the shell is less due to?

Low working pressure

Partial circulation of water

High working pressure

Natural circulation of water

Question 6 of 10

Question 7 of 10

7. Which draught system is used as conjunction with chimney draught?

Forced draught

Induced draught

Balanced draught

Forced steam draught

Question 7 of 10

Question 8 of 10

8. Are boilers defined on the basis of heat source.

Yes

Question 8 of 10

Question 9 of 10

9. Overheating doesn’t occur in components of primary circuit Schmidt-Hartmann boiler.

False

True

Question 9 of 10

Question 10 of 10

10. What is feature of the Loffler boilers?

Produce better steam quality by heating the boiler furnace above critical degrees

Eliminate the extra components used

Provide better efficiency by re-circulating gas coming out of turbine

Evaporating water by super heated steam

Question 10 of 10