Compressors, Gas Turbines and Jet Engines The maximum propulsion efficiency of a turbojet is attained at around following speed 2400 km/hr 1050 km/hr 550 km/hr 1700 km/hr 2400 km/hr 1050 km/hr 550 km/hr 1700 km/hr ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The axial flow compressor is preferred in aircraft gas turbines because of Higher thrust Low frontal area None of the listed here High pressure rise Higher thrust Low frontal area None of the listed here High pressure rise ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The inlet pressure is always ___ the discharge pressure. Less than None of the listed here Equal to More than Less than None of the listed here Equal to More than ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a reciprocating air compressor, the compression work per kg of air Increases as clearance volume decreases Is independent of clearance volume Decreases as clearance volume increases Increases as clearance volume increases Increases as clearance volume decreases Is independent of clearance volume Decreases as clearance volume increases Increases as clearance volume increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volume of air sucked by the compressor during its suction stroke is called Swept volume Free air delivery Compressor capacity None of these Swept volume Free air delivery Compressor capacity None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure) (p₁ - p₂)/2 (p₁ + p₂)/2 p₁ p₂ p₁/p₂ (p₁ - p₂)/2 (p₁ + p₂)/2 p₁ p₂ p₁/p₂ ANSWER DOWNLOAD EXAMIANS APP
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