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Power Plant Engineering Practice Test: Fuels & Combustion
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Avg score: 83% Most missed: “Coke devoid of volatile matter is called __________”
Fuels & Combustion topics include: Fuel oil, coal-oil and coal-water, biomass, draught system and heat of combustion. Thermal power generation is a method of creating electricity by burning fuels like coal, oil, and natural gas. This process is called thermal generation.  Here's how it works: The burning of fuels heats water in boilers to create steam. The steam rotates a turbine that drives a generator to produce electricity.  Thermal power plants use a variety of fuels, including: Liquefied natural gas (LNG) Liquefied petroleum gas (LPG) Heavy oil Crude oil Natural gas liquid... Show more
Power Plant Engineering Practice Test: Fuels & Combustion
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25 Questions

1. Fuel gases containing hydrocarbons are not preheated before burning, because __________
2. The heat transferred when the H2O in the products is in the liquid state is called?
3. The difference in total carbon and fixed carbon of coal will be minimum in case of __________
4. Coke devoid of volatile matter is called __________
5. In a furnace employing forced draught compared to induced draught __________
6. If M and A represent the percentages of moisture and ash respectively, the dry and ash free analysis in Ultimate Analysis is obtained on dividing other components by the fraction of?
7. The difference between the enthalpy of products & the enthalpy of reactants when complete combustion occurs at specific temperature & pressure is called?
8. A good quality coal should have __________
9. Which of these is not a form of bioconversion route?
10. Improper storage condition results weathering of coal and spontaneous combustion, which increases its?
11. Maximum Theoretical Flame Temperature corresponds to _____________
12. Carbon content by weight in air dried wood may be about _____________ %.
13. Which of these gases is the reason for the maintenance of natural gas at cryogenic temperatures?
14. ‘Fat coal’ means a coal having __________
15. Laboratory gas is obtained by cracking of __________
16. Which of the following is not directly determined in the Proximate Analysis of coal?
17. Flue gas discharge velocity through chimney of a big thermal power plant may be around __________ m/sec.
18. Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.
19. Spontaneity of a chemical reaction depends on?
20. A coal containing high percentage of durian is called _________
21. Natural draught produced by a chimney depends upon __________
22. The bulk of hydrocarbon belongs to which group?
23. For exothermic reactions, free energy change is?
24. Which of these is not a type of mechanical draft system for a furnace?
25. The maximum turbine flame temperature can be can be controlled by?