1. provide air around burners for obtaining optimum combustion
2. transport and dry the coal
3. convert CO(formed in lower zone of furnace) into C02 at higher zone
4. air delivered by forced draft fan
transport and dry the coal
1. isothermal
2. isentropic
3. adiabatic
4. isochoric
isothermal
1. gas turbine uses low air-fuel ratio to economies on fuel
2. gas turbine uses high air-fuel ratio to reduce outgoing temperature
3. gas turbine uses low air-fuel ratio to develop the high thrust required
4. all of the above
gas turbine uses high air-fuel ratio to reduce outgoing temperature
1. cannot be compressed
2. occupy definite volume
3. are not affected by change in pressure and temperature
4. none of the above
none of the above
1. A.C. electric motor
2. compressed air
3. petrol engine
4. diesel engine
compressed air
1. These are used to dampen pulsations
2. These act as reservoir to- take care of sudden demands
3. These increase compressor efficiency
4. These knock out some oil and moisture
These increase compressor efficiency
1. Newton's law of motion
2. Newton's law of viscosity
3. Pascal' law
4. Continuity equation
Continuity equation
1. sun
2. shade
3. rain
4. enclosed room
rain
1. Power consumption per unit of air delivered is low
2. Volumetric efficiency is high
3. It is best suited for compression ratios around 7:1
4. The moisture in air is condensed in the inter cooler
Volumetric efficiency is high
1. employing inter cooler
2. by constantly cooling the cylinder
3. by running compressor at very slow speed
4. by insulating the cylinder
by running compressor at very slow speed