The pressure of air at the beginning of the compression stroke is ________ the atmospheric pressure.
Equal to
Less than
More than
None of these
- The efficiency of roots blower ________ with the increase in pressure ratio.
- In a single acting reciprocating compressor, the suction, compression and delivery of air takes place…
- Adiabatic compression is one in which
- Turbofan engine employs
- The performance of air compressor at high altitudes will be ________ as compared to that at sea level.
- Mechanical efficiency of gas turbines as compared to I.C engines is
- There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum.…
- The pressure ratio of an ideal vaned compressor with increase in mass flow rate
- A jet engine works on the principle of conservation of
- Water is injected in gas turbine cycle to
- The air entry velocity m a rocket as compared to aircraft is
- The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)
- Surging is the phenomenon of
- The velocity of air entering in a rocket is ________ as compared to an aircraft.
- A centrifugal compressor works on the principle of
- In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of
- Maximum delivery pressure is a rotary air compressor is of the order of
- The advantage of multistage compression over single stage compression is
- For a two stage compressor, if index of compression for higher stage is greater than index of compression…
- If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of…
- The fuel consumption in gas turbines is accounted for by
- Losses in a centrifugal compressor are due to
- Rotary compressors are suitable for
- Volumetric efficiency of a compressor without clearance volume
- High air-fuel ratio is used in gas turbines
- Which of the following statement is correct?
- Pick up the false statement
- The ratio of isentropic work to Euler work is known as
- Pick up the correct statement
- The intercooler pressure, for minimum work required, for a two stage reciprocating air compressor, is…