Q.1
Propulsion efficiency of the following order is obtained in practice
Q.2
The maximum delivery pressure in a rotary air compressor is
Q.3
In a closed cycle gas turbine, the air is compressed
Q.4
The capacity of a compressor is 5 m/min refers to
Q.5
The thermal efficiency of a gas turbine as compared to a diesel plant is
Q.6
In a double acting compressor, the air is compressed
Q.7
The work-done on a compressor will be minimum if air is taken from
Q.8
A jet engine has
Q.9
Isothermal compression though most efficient, but is not practicable because
Q.10
The type of rotary compressor used in aeroplanes, is of
Q.11
Open cycle gas turbine works on
Q.12
A turboprop is preferred to turbojet because
Q.13
In jet propulsion power unit, the inlet duct of diverging shape is used in order to
Q.14
Gas turbine cycle with regenerator
Q.15
The ratio of the net work obtained from the gas turbine plant to the turbine work is known as
Q.16
Only rocket engines can be propelled to space because
Q.17
Gas turbine as compared to steam turbine
Q.18
Water is injected in gas turbine cycle to
Q.19
Gas turbine works on
Q.20
A closed cycle gas turbine works on
Q.21
Free air is the air at
Q.22
Standard air is the air at
Q.23
The overall efficiency of the compressed air system is the
Q.24
In a jet engine, the air-fuel ratio is
Q.25
The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is
Q.26
For perfect intercooling in a three stage compressor
Q.27
For perfect intercooling in a two stage compressor
Q.28
The weight per horse power ratio for gas in Turbine as compared to I.C. engine and steam turbine is
Q.29
The volume of air sucked by the compressor during its suction stroke is called
Q.30
A centrifugal compressor works on the principle of
0 h : 0 m : 1 s