Compressors, Gas Turbines and Jet Engines 1 m of air at atmospheric condition weighs approximately 0.5 kg 1.3 kg 2.2 kg 1.0 kg 0.5 kg 1.3 kg 2.2 kg 1.0 kg ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor, without clearance, the work-done on the air during isentropic compression is ________ the heat required to raise the temperature of air from T₁ to T₂ at a constant pressure. Equal to Greater than Less than None of these Equal to Greater than Less than None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To increase the output To reduce the exit temperature To save fuel To increase the efficiency To increase the output To reduce the exit temperature To save fuel To increase the efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is given by 1 - k + k (p₁/p₂)1/n 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁) n-1/n 1 - k + k (p₁/p₂)1/n 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁) n-1/n ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler’s work is known as Isentropic efficiency Euler Pressure coefficient Compressor efficiency Isentropic efficiency Euler Pressure coefficient Compressor efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A gas turbine used in air craft should have Low weight and small frontal area Small frontal area and high h.p. High speed and high h.p. High h.p. and low weight Low weight and small frontal area Small frontal area and high h.p. High speed and high h.p. High h.p. and low weight ANSWER DOWNLOAD EXAMIANS APP
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