When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Compressors, Gas Turbines and Jet Engines
When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Less than

Equal to

None of these

More than

Less than

Equal to

None of these

More than

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Compressors, Gas Turbines and Jet Engines
The working fluid in a turbine is

In the form of air and water mixture

In a single phase

In two phases

In three phases

In the form of air and water mixture

In a single phase

In two phases

In three phases

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Compressors, Gas Turbines and Jet Engines
Intercooling in gas turbines

Decreases net output but increases thermal efficiency

Increases net output but decreases thermal efficiency

Decreases net output and thermal efficiency both

Increases net output and thermal efficiency both

Decreases net output but increases thermal efficiency

Increases net output but decreases thermal efficiency

Decreases net output and thermal efficiency both

Increases net output and thermal efficiency both

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Compressors, Gas Turbines and Jet Engines
The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow)

W₂/(W₁ + W₂)

(W₁ + W₂)/W₁

(W₁ + W₂)/W₂

W₁/(W₁ + W₂)

W₂/(W₁ + W₂)

(W₁ + W₂)/W₁

(W₁ + W₂)/W₂

W₁/(W₁ + W₂)

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Compressors, Gas Turbines and Jet Engines
The minimum work required for a three stage reciprocating air compressor is ___ the work required for each stage.

Equal to

Three times

Double

Six times

Equal to

Three times

Double

Six times

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Compressors, Gas Turbines and Jet Engines
Which of the following fuels can be used in turbojet engines?

High speed diesel oil

Liquid hydrogen

Kerosene

Methyl alcohol

High speed diesel oil

Liquid hydrogen

Kerosene

Methyl alcohol

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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Compressors, Gas Turbines and Jet Engines The working fluid in a turbine is

Compressors, Gas Turbines and Jet Engines Intercooling in gas turbines

Compressors, Gas Turbines and Jet Engines The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow)

Compressors, Gas Turbines and Jet Engines The minimum work required for a three stage reciprocating air compressor is ___ the work required for each stage.

Compressors, Gas Turbines and Jet Engines Which of the following fuels can be used in turbojet engines?

Compressors, Gas Turbines and Jet Engines
When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Compressors, Gas Turbines and Jet Engines
The working fluid in a turbine is

Compressors, Gas Turbines and Jet Engines
Intercooling in gas turbines

Compressors, Gas Turbines and Jet Engines
The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow)

Compressors, Gas Turbines and Jet Engines
The minimum work required for a three stage reciprocating air compressor is ___ the work required for each stage.

Compressors, Gas Turbines and Jet Engines
Which of the following fuels can be used in turbojet engines?