Mechanical Engineering : Compressors QUESTIONS AND ANSWERS :: part1 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.The- most efficient method of compressing air is to compress it |
| isothermally |
| adiabatically |
| isentropically |
| isochronically |
| as per law pV |
7.Ratio of indicated H.P. and brake H.P. is known as |
| mechanical efficiency |
| volumetric efficiency |
| isothermal efficiency |
| adiabatic efficiency |
| relative efficiency. |
8.An ideal air compressor cycle with clearance on p-v diagram can be represented by following processes |
| one adiabatic, two isobaric, and one constant volume |
| two adiabatic and two isobaric |
| two adiabatic, one isobaric and one constant volume, |
| one adiabatic, one isobaric and two constant volume |
| two isobaric, two adiabatic and one constant volume. |
9.The overall isothermal eiffciency of compressor is defined as the ratio of |
| isothermal h.p. to the BHP of motor |
| isothermal h.p. to adiabatic h.p. |
| power to drive compressor to isothermal h.p. |
| work to compress air isothermally to work for actual compression |
| isothermal work to ideal work. |
10.Compression efficiency is compared against |
| ideal compression |
| adiabatic compression |
| botii isothermal and adiabatic compression |
| isentropic compression |
| isothermal compression. |
More Compressors QUESTIONS AND ANSWERS available in next pages
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