Exam preparation MCQs with answers

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Ratio of compression is the ratio of__________________?
  • (A)  gauge discharge pressure to the gauge intake pressure
  • (B)  absolute discharge pressure to the ab-solute intake pressure
  • (C)  pressures at discharge and suction cor-responding to same temperature
  • (D)  stroke volume and clearance volume
  • (E)  none of the above
Volumetric efficiency is_____________________?
  • (A)  the ratio of stroke volume to clearance volume
  • (B)  the ratio of the air actually delivered to the amount of piston displacement
  • (C)  reciprocal of compression ratio
  • (D)  index of compressor performance
  • (E)  proportional to compression ratio