Pick up wrong statement ?
A. mass flow rate
B. pressure ratio
C. change in load
D. stagnation pressure at the outlet
E. all of the above
Correct Answer: stagnation pressure at the outlet ✔
Last Updated: January 24, 2019
Related MCQs
- Gas turbines for power generaion are normally used__________?
- Open cycle gas turbine works on__________?
- The work ratio of simple gas turbine cycle depends on__________?
- The vloumetric efficiency of compressor with increase in compression ratio will __________?
- Axial flow compressor resembles__________ ?
- Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm . The air pressure will be__________ ?
- Axial flow compressor has the following advantage over centrifugal compressor__________?
- Maximum delivery pressure is a rotary air compressor is of the order of__________?
- The thermodynamic efficiency of rotary compressor is based on__________?
- Surging is the phenomenon of__________?
- The maximum compression ratio in an actual single stage axial flow comperssor is of the order of__________?
- The ratio of isentropic work to euler’s work is known as __________?
- The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called__________?
- More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than__________?
- Pick up the wrong statement about advantages of multistage compression__________?
- Losses in a centrifugal compressor are due to__________?
- For a two stage compressor* if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will__________?
- The criterion of the thermodynamic efficiency for rotary compressor is__________?
- The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature__________?
- For minimum work in multistage compression, assuming same index of compression in all stages__________?
- Which is false statement about advantages of multistage compressor in comparison to single stage compressor__________?
- For supplying intermittent small quantity of air at high pressure, following compressor is best suited__________?
- Diffuser in a compressor is used to __________?
- Phenomenon of choking in compressor means __________?
- The ratio of isentropic work to Euler work is known as__________?
- The indicated work per unit mass of air delivered is__________?
- As the value of index ‘«’ is decreased, the volumetric efficiency will__________?
- The advantage of multistage compression over single stage compression is __________?
- In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to __________?
- The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation__________?
- During base load operation, the best method of controlling compressor is __________?
- The volumetirc efficiency of a compressor is calculated on the basis of __________?
- For slow-speed large capacity compressor, following type of valve will be best suited__________?
- The compressor efficiecny is the__________?
- For a compressor, least work will be done if the compression is__________ ?
- To avoid moisture troubles, the branch connections from compressed air lines should be taken from__________?
- To aviod moisture troubles, the compressed air main line should __________?
- The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is__________?
- The thrust on the rotor in a centrifugal compressor is produced by__________?
- A compressor at high altitude will draw__________?
- A centrifugal compressor works on the principle of__________?
- The compressor performance at higher altitude compared to sea level will be __________?
- During peak load periods, the best method of controlling compressors is__________?
- An air compressor may be controlled by__________?
- Separators in compressor installations are located__________?
- Mining industry usually employs following motive power__________?
- In multistage compressor, the isothermal compression is achieved by__________?
- The capacity of compressor will be highest when its intake temperature is__________?
- Reciprocating air compressor is best suited for__________?
- After-cooler is used to__________?
- Rotary compressor is best suited for__________?