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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
For supplying intermittent small quantity of air at high pressure, following compressor is best suited

Screw
Reciprocating
Centrifugal
Axial

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Compressors, Gas Turbines and Jet Engines
The material commonly used for air craft gas turbine is

Duralumin
Stainless steel
High alloy steel
Timken, Haste alloys

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Compressors, Gas Turbines and Jet Engines
Which is false statement about multistage compression?

It is best suited for compression ratios around 7:1
The moisture in air is condensed in the inter-cooler
Volumetric efficiency is high
Power consumption per unit of air delivered is low

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Compressors, Gas Turbines and Jet Engines
The work ratio of a gas turbine plant is defined as the ratio of

Net work output and work done by turbine
Actual heat drop and isentropic heat drop
Net work output and isentropic heat drop
Net work output and heat supplied

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Compressors, Gas Turbines and Jet Engines
In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor.

Inlet velocity of flow
Outlet whirl velocity
Inlet whirl velocity
Outlet velocity of flow

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Compressors, Gas Turbines and Jet Engines
Losses in a centrifugal compressor are due to

Diffuser losses
Inlet losses
All of the listed here
Impeller channel losses

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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