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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
An air receiver is to be placed outside. Should it be placed in

Shade
Enclosed room
Rain
Sun

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Compressors, Gas Turbines and Jet Engines
The ratio of isentropic work to Euler work is known as

Polytropic reaction
Slip factor
Work coefficient
Pressure coefficient

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Compressors, Gas Turbines and Jet Engines
The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature

0.05
0.01
0.005
0.001

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Compressors, Gas Turbines and Jet Engines
The efficiency of a jet engine is higher at

High altitudes
High speeds
Low speeds
Low altitudes

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Compressors, Gas Turbines and Jet Engines
The volume of air delivered in a medium capacity air compressor per unit time is

0.1 to 1.2 m³/s
Above 5 m³/s
None of these
0.15 to 5 m³/s

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Compressors, Gas Turbines and Jet Engines
The mass of gas turbine per kW developed is about ________ as that of an I.C. engine.

One fourth
Same
One-half
One sixth

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