SSC JE Mechanical 2017- Daily Quiz 5

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Question 1

In an axial flow compressor, the ratio of pressure rise in the rotor blades to the pressure rise in the compressor in one stage is known as

• Apressure coefficient
• Bwork factor
• Cdegree of reaction
• Dslip factor

Question 2

What will be the geometric mean radius of heat transfer for a hollow sphere of inner and outer radii

• A
• B
• C
• D

Question 3

In a two-stage compressor with ideal intercooling, for the work requirement to be minimum, the intermediate pressure p in terms of condenser and evaporator pressure p and p respectively is

• A
• B
• C
• D

Question 4

In automobiles the power is transmitted from gear box to differential through:

• Abevel gear
• BKnuckle joint
• CHooke’s joint
• DNone of these

Question 5

Cast iron and steel pipes are produced by _____.

• ASlush casting
• BInvestment casting
• CTrue centrifugal casting
• DDie casting

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