If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity

Compressors, Gas Turbines and Jet Engines
If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity

Vi = Vo

V = Uo

U < Vo

Vt > Vo

Vi = Vo

V = Uo

U < Vo

Vt > Vo

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Compressors, Gas Turbines and Jet Engines
Water gas is produced by

Partial combustion of coal, eke, anthracite coal or charcoal in a mixed air steam blast

Passing air and a large amount of steam over waste coal at about 65°C

Passing steam over incandescent coke

Carbonisation of coal

Partial combustion of coal, eke, anthracite coal or charcoal in a mixed air steam blast

Passing air and a large amount of steam over waste coal at about 65°C

Passing steam over incandescent coke

Carbonisation of coal

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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.

Six times

Three times

Equal to

Double

Six times

Three times

Equal to

Double

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Compressors, Gas Turbines and Jet Engines
The fuel consumption in gas turbines is accounted for by

Heating value

Higher heating value

Lower heating value

Higher calorific value

Heating value

Higher heating value

Lower heating value

Higher calorific value

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Compressors, Gas Turbines and Jet Engines
The ratio of specific weight/h.p. of gas turbine and I.C engines may be typically of the order of

0.16736111111111

0.042361111111111

0.045833333333333

0.084027777777778

0.16736111111111

0.042361111111111

0.045833333333333

0.084027777777778

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Compressors, Gas Turbines and Jet Engines
The axial flow compressor is preferred in aircraft gas turbines because of

Low frontal area

None of the listed here

Higher thrust

High pressure rise

Low frontal area

None of the listed here

Higher thrust

High pressure rise

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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity

Compressors, Gas Turbines and Jet Engines Water gas is produced by

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 The fuel consumption in gas turbines is accounted for by

Compressors, Gas Turbines and Jet Engines The ratio of specific weight/h.p. of gas turbine and I.C engines may be typically of the order of

Compressors, Gas Turbines and Jet Engines The axial flow compressor is preferred in aircraft gas turbines because of

Compressors, Gas Turbines and Jet Engines
If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity

Compressors, Gas Turbines and Jet Engines
Water gas is produced by

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
The fuel consumption in gas turbines is accounted for by

Compressors, Gas Turbines and Jet Engines
The ratio of specific weight/h.p. of gas turbine and I.C engines may be typically of the order of

Compressors, Gas Turbines and Jet Engines
The axial flow compressor is preferred in aircraft gas turbines because of