The volumetric efficiency of a compressor
Increases with decrease in compression ratio
Decreases with decrease in compression ratio
Increases with increase in compression ratio
Decreases with increase in compression ratio
- The advantage of multistage compression over single stage compression is
- The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is
- Pick up the false statement
- In jet engines the products of combustion after passing through the gas turbine are discharged into
- There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum.…
- Only rocket engines can be propelled to space because
- In which case the air-fuel ratio is likely to be maximum?
- The performance of air compressor at high altitudes will be ________ as compared to that at sea level.
- A closed cycle gas turbine consists of a
- When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades…
- The pressure ratio of an ideal vaned compressor with increase in mass flow rate
- Pick up the correct statement
- The intercooler pressure, for minimum work required, for a two stage reciprocating air compressor, is…
- In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor…
- More than one stage will be preferred for reciprocating compressor if the delivery pressure is more…
- A compressor at high altitude will draw
- The volumetric efficiency of compressor with increase in compression ratio will
- If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches
- The clearance volume of the air compressor is kept minimum because
- An ideal air compressor cycle without clearance on PV diagram can be represented by following processes
- Ramjet engine
- In jet engines, paraffin is usually used as the fuel because of its
- In a centrifugal compressor, the flow of air is ________ to the axis of compressor.
- The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is
- Gas turbines for power generation are normally used
- The inlet pressure is always ________ the discharge pressure.
- For minimum work required to compress and deliver a quantity of air by multistage compression
- The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in…
- A compressor mostly used for supercharging of I.C. engines is
- Euler's equation can be used for