Mechanical Engineering : Compressors QUESTIONS AND ANSWERS :: part2 : 1 to 5
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.Volumetric efficiency is |
| the ratio of stroke volume to clearance volume |
| the ratio of the air actually delivered to the amount of piston displacement |
| reciprocal of compression ratio |
| index of compressor performance |
| proportional to compression ratio. |
2.To avoid moisture troubles, the branch connections from compressed air lines should be taken from |
| top side of main |
| bottom side of main |
| left side of main |
| right side of main |
| any location. |
3.After-cooler is used to |
| cool the air |
| decrease the delivery temperature for ease in handling |
| cause moisture and oil vapour to drop out |
| reduce volume |
| increase pressure. |
4.Which is false statement about multistage compression . |
| Power consumption per unit of air delivered is low |
| Volumetric efficiency is high |
| It is best suited for compression ratios around 7:1 |
| The moisture in air is condensed in the intercooler |
| Outlet temperature is reduced. |
5.Ratio of indicated h.p. to shaft h.p. in known as |
| compressor efficiency |
| isothermal efficiency |
| volumetric efficiency |
| mechanical efficiency |
| adiabatic efficiency. |
More Compressors QUESTIONS AND ANSWERS available in next pages
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