Power Plant Questions and Answers – Kinetic and Diffusion Control – II

This set of Power Plant online quiz focuses on “Kinetic and Diffusion Control – II”.

1. Higher fuel combustion efficiency cannot be achieved by __________
a) preheating of fuel gases & combustion air
b) supplying correct amount of combustion air
c) reducing sulphur content in the fuel
d) adopting proper fuel firing technique & fuel preparation
View Answer

2. Particular coal is said to be free burning when it __________
a) gives smokeless burning
b) shows little or no fusing action
c) burns completely
d) none of the mentioned
View Answer

3. Bunsen burner is an example of a/an __________ burner.
a) inside mixing/premix type
b) submerged combustion
c) rotary cup
d) outside mixing/diffusion flame/nozzle mix type
View Answer

4. The cooling medium used in dry quenching of coke is __________
a) nitrogen
b) air
c) phenolic water
d) carbon dioxide
View Answer

5. High amount of sulphur and phosphorous in coke causes __________
a) increase in its strength
b) decrease in its calorific value
c) brittleness of steel made by using it
d) none of the mentioned
View Answer

6. Cannel coal and boghead coal are the examples of __________
a) liptobiolites
b) humic coals
c) sapropelic coals
d) none of the mentioned
View Answer

7. The difference between total carbon and fixed carbon of coal will be minimum in case of __________
a) anthracite
b) lignite
c) bituminous
d) high temperature coke (V.M < 0.5%)
View Answer

8. Out of the following fuels, the difference between the net and gross calorific value is maximum in case of __________
a) fuel oil
b) blast furnace gas
c) bituminous coal
d) pitch
View Answer

9. Which of the following is the maximum coal producing state in India?
a) Orissa
b) West Bengal
c) Jharkhand
d) Assam
View Answer

10. A good quality coal should have __________
a) low fusion point of ash
b) high sulphur
c) high ash content
d) none of the mentioned
View Answer

11. __________ prohibits the use of alcohols directly in petrol engines.
a) High cost & difficult availability
b) Low octane number
c) Low flash point
d) Low calorific value
View Answer

12. The hottest part of the flame lies in its ___________ zone.
a) non-luminous
b) luminous
c) yellow
d) unburnt gases
View Answer

13. Percentage of methane in coke oven gas may be around __________
a) 5
b) 15
c) 25
d) 35
View Answer

Sanfoundry Global Education & Learning Series – Power Plant Engineering.

To practice all areas of Power Plant for online Quizzes, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]