Q.1.
In a jet engine, the air-fuel ratio is
Q.2.
Free air is the air at
Q.3.
Standard air is the air at
Q.4.
In a double acting compressor, the air is compressed
Q.5.
Gas turbine works on
Q.6.
An aftercooler is used to
Q.7.
The overall efficiency of the compressed air system is the
Q.8.
The air power of the compressor is also known as
Q.9.
Which of the following plants is smallest and lightest for generating a given amount of power?
Q.10.
Which of the following plants is smallest and lightest for generating a given amount of power?
Q.11.
The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the
Q.12.
In a reciprocating air compressor, the compression work per kg of air
Q.13.
An axial compressor gives optimum performance at high speeds and large volume flows.
Q.14.
The increase in pressure in a roots blower is entirely due to back flow of air.
Q.15.
If pis the pressure of air entering the L.P. cylinder and p2 is the pressure of air leaving the L.P. cylinder (or intercooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D1 = Dia. of L.P. cylinder, and D2 = Dia. of H.P. cylinder)
Q.16.
The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as
Q.17.
High air-fuel ratio in gas turbines
Q.18.
The maximum combustion pressure in gas turbine is __________ as compared to I.C. engine.
Q.19.
The compression ratio in a gas turbine is
Q.20.
The actual volume of air delivered by a compressor, When reduced to the normal temperature and pressure conditions is called compressor capacity.