Question75:-The heat which is required to change the phase from water at 100° C to saturated steam at 100° C at atm.
pressure is
A:-Sensible heat
B:-Latent heat
C:-Super heat
D:-Specific heat
Correct Answer:- Option-B
Question76:-The equipment having the highest efficiency in case of thermal power plant is
A:-Boiler
B:-Turbine
C:-Generator
D:-Cooling tower
Correct Answer:- Option-C
Question77:-Excess air can be derived by mesuring the % of in flue gases.

Correct Answer:- Option-B
Question78:-The heat loss dependant on chemical characteristics of liquid fuel is
A:-Unbumt loss
B:-Blowdown loss
C:-Radiation 1055
D:-Hydrogen loss
Correct Answer:- Option-D
Question79:-What type of steam is used for electric power generation in thermal power plants 7
A:-High pressure with superheat
B:-Dry saturate
C:-Wet steam
D:-None of the above
Correct Answer:- Option-A
QuestionB0:-High percentage of carbon monoxide presence in the flue gas of boiler is an indicator of
A:-High excess air
B:-Complete combustion
C:-Good control of the pollutants
D:-Low excess air
Correct Answer:- Option-D
Question81:-Reverse osmosis for water treatment involves
A:-Removal of alkali salts
B:-Removal of total salts
C:-Removal of only hardness causing salts
D:-Removal of non-hardness salts
Correct Answer:- Option-B
Question82:-When 100 kg of fuel with 60% carbon is bumnt with theoretical air, the mass of ` 0 (2) 16167580 15
A:-319 kg
B:-4400 kg
C:220 kg
D:-4500 kg
Correct Answer:- Option-C
Question83:-Reduction of steam pressure in चे process heating application will
A:-Reduce the steam temperature
B:-Reduce the sensible heat
C:-Increase the enthalpy of evaporation
D:-All of the above
Correct Answer:- Option-D
Question84:-When pure hydrogen is bumed, with theoretical air, the volume percentage of nitrogen in flue gas on dry basis
willbe 7
A:-100%
B:-79%