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ME Set-3
Pressure Vessels
80

Pressure Vessels and Engines MCQ with Answers

80) The maximum compression ratio in an actual single stage axial flow comperssor is of the order of

1:1.2

1:2

1:5

1:10

Answer is:

1:1.2

Pressure Vessels and Engines MCQ with Answers

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Related Pressure Vessels and Engines MCQ with Answers

81) Maximum delivery pressure is a rotary air compressor is of the order of

6 kg/cm2

10 kg/cm2

16 kg/cm2

25 kg/cm2

Answer is:

10 kg/cm2

82) Surging is the phenomenon of

air stream blocking the passage

motion of air at sonic velocity

unsteady, periodic and reversed flow

air stream not able to follow the blade contour

Answer is:

unsteady, periodic and reversed flow

83) Pick up wrong statement.Surging phenomenon in centrifugal com-pressor depends on

mass flow rate

pressure ratio

change in load

stagnation pressure at the outlet

Answer is:

stagnation pressure at the outlet

84) The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called

pressure ratio

pressure coefficient

degree of reaction

slip factor

Answer is:

degree of reaction

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