Try to answer these 20 Compressors, Gas Dynamics and Gas Turbines MCQs and Answers (FREE) MCQs and check your understanding of the Compressors, Gas Dynamics and Gas Turbines MCQs and Answers (FREE) subject.
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A. Blade camber and incidence angle
B. Space-chord ratio
C. Blade camber and space-chord ratio
D. Blade camber
A. Disagree
B. Agree
A. Increased volume flow rate
B. Lower delivery pressure
C. Lower suction pressure
D. Reduced volume flow rate
A. No
B. Yes
A. M3/min
B. Kg/m2
C. M3/kg
D. Kg/m3
A. In the impeller only
B. In the inlet guide vanes only
C. In the diffuser and impeller
D. In the diffuser only
A. 9
B. 4
C. 12
D. 1
A. False
B. True
A. Axial flow type
B. Radial flow type
C. Centrifugal type
D. None of these
A. The ratio of the volume of free air delivery per stroke to the swept volume of the piston is called volumetric efficiency.
B. The minimum work required for a two stage reciprocating air compressor is double the work required for each stage.
C. In a two stage reciprocating air compressor with complete intercooling, maximum work is saved.
D. None of these
A. False
B. True
A. More than
B. Equal to
C. Less than
A. Requires less space for installation
B. Has less efficiency
C. Has compressor and combustion chamber
D. All of these
A. Increases as clearance volume increases
B. Is independent of clearance volume
C. Increases as clearance volume decreases
D. Decreases as clearance volume increases
A. No
B. Yes
A. Small quantities of air at high pressures
B. Small quantities of air at low pressures
C. Large quantities of air at high pressures
D. Large quantities of air at low pressures
A. The ratio of the discharge pressure to the inlet pressure of air is called compressor efficiency.
B. The compression ratio for the compressor is always greater than unity.
C. The compressor capacity is the ratio of workdone per cycle to the stroke volume.
D. During isothermal compression of air, the workdone in a compressor is maximum.
A. 500°C
B. 200°C
C. 700°C
D. 1000°C
A. Decreases net output and thermal efficiency both
B. Increases net output and thermal efficiency both
C. Increases net output but decreases thermal efficiency
D. Decreases net output but increases thermal efficiency
A. Equal to
B. One-half
C. Double