Compressors MCQs with answers Page - 2

Here, you will find a collection of MCQ questions on Compressors. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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A

Admin • 802.91K Points
Coach

Q. As the value of index ‘«’ is decreased, the volumetric efficiency will

  • (A) increase
  • (B) decrease
  • (C) remain unaffected
  • (D) may increase/decrease depending on compressor clearance

A

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Q. As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio

  • (A) increases
  • (B) decreases
  • (C) remains same
  • (D) first increases and then decreases

A

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Q. An ideal air compressor cycle without clearance on p-v diagram can be represented by following processes

  • (A) one adiabatic, two isobaric, and one constant volume
  • (B) two adiabatic and two isobaric
  • (C) two adiabatic, one isobaric and one constant volume
  • (D) one adiabatic, one isobaric and two constant volume

A

Admin • 802.91K Points
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Q. An ideal air compressor cycle with clearance on p-v diagram can be represented by following processes

  • (A) one adiabatic, two isobaric, and one constant volume
  • (B) two adiabatic and two isobaric
  • (C) two adiabatic, one isobaric and one constant volume,
  • (D) one adiabatic, one isobaric and two constant volume

A

Admin • 802.91K Points
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Q. An air receiver is to be placed outside. Should it be placed in

  • (A) sun
  • (B) shade
  • (C) rain
  • (D) anywhere

A

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Q. An air compressor may be controlled by

  • (A) throttle control
  • (B) clearance control
  • (C) blow-off control
  • (D) any one of the above

A

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Q. Air-fuel ratio in a jet engine will be of the order of

  • (A) 10:01
  • (B) 15:01
  • (C) 20:01
  • (D) 60:01:00

A

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Q. After-cooler is used to

  • (A) cool the air
  • (B) decrease the delivery temperature for ease in handling
  • (C) cause moisture and oil vapour to drop out
  • (D) reduce volume

A

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Q. Aeroplanes employ following type of compressor

  • (A) radial flow
  • (B) axial flow
  • (C) centrifugal
  • (D) combination of above

A

Admin • 802.91K Points
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Q. Adiabatic compression is one in which

  • (A) temperature during compression remains constant
  • (B) no heat leaves or enters the compressor cylinder during compression
  • (C) temperature rise follows a linear relationship
  • (D) work done is maximum

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