Pressure Vessels and Engines MCQ with Answers

56) In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to

Answer is:

intake temperature and pressure conditions

Explanation:

Free air delivery is the actual volume delivered by a compressor when reduced to the normal temperature and pressure conditions. The capacity of a compressor is generally given in terms of free air delivery.

57) The volumetirc efficiency of a compressor is calculated on the basis of

Answer is:

volume of air inhaled at N.T.P. conditions

58) The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation

Answer is:

0.01

59) For slow-speed large capacity compressor, following type of valve will be best suited

Answer is:

disc or feather type

60) During base load operation, the best method of controlling compressor is

Answer is:

56) In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to

intake temperature and pressure conditions

57) The volumetirc efficiency of a compressor is calculated on the basis of

volume of air inhaled at N.T.P. conditions

58) The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation

0.01

59) For slow-speed large capacity compressor, following type of valve will be best suited

disc or feather type

60) During base load operation, the best method of controlling compressor is

start-stop motor