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ESE 2021 ME Technical Quiz || Compressors
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Question 1
In an axial flow compressor, Air enters at a mass flow rate of 160 kg/min with it's temperature of 30ºC. The overall pressure ratio is 5 and Polytropic efficiency to be 0.85. Find out the number of stages __________ if stagnation temperature rise per stage must not exceed 30 K.
Question 2
In a three stage compressor, if the pressure at the entry of first and third stage are 1 bar and 16 bar, then the delivery pressure at the third stage will be
Question 3
A single acting two-stage air compressor deals with 4 m3/min of air at 1.013 bar and 15°C with a speed of 250 rpm. The delivery pressure is 80 bar. If the inter cooling is complete, the intermittent pressure after first stage will be
Question 4
What does application of centrifugal air compressors lead to?
Question 5
Stalling phenomena in an axial flow compressor stage is caused due to which one of the following?
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