Compressors, Gas Turbines and Jet Engines During peak load periods, the best method of controlling compressors is Variable speed Constant speed unloader Relief valve Start-stop motor Variable speed Constant speed unloader Relief valve Start-stop motor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The temperature of air at the beginning of the compression stroke is ________ the atmospheric temperature. More than Equal to None of these Less than More than Equal to None of these Less than ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) 1 - (1/r) ɣ-1/ɣ r ɣ-1 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 1 - (1/r) ɣ-1/ɣ r ɣ-1 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The maximum temperature in a gas turbine is 700°C 500°C 200°C 1000°C 700°C 500°C 200°C 1000°C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine as compared to steam turbine All of these Requires less space for installation Has compressor and combustion chamber Has less efficiency All of these Requires less space for installation Has compressor and combustion chamber Has less 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 (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁) n-1/n 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂)1/n 1 - k + k (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁) n-1/n 1 + k - k (p₂/p₁)1/n ANSWER DOWNLOAD EXAMIANS APP
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