Air Compressor - Air Compressor objective questions and answers


16. Mining industry usually employs following motive power.......


   A.AC electric motor

   B.Compressed air

   C.Petrol engine

   D.Diesel engine


✔ View Answer


B.Compressed air

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17. Ratio of compression is the ratio of.......


   A.Gauge discharge pressure to the gauge intake pressure

   B.Absolute discharge pressure to the absolute intake pressure

   C.Stroke Volume and clearance volume

   D.None of the above


✔ View Answer


B.Absolute discharge pressure to the absolute intake pressure

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18. Cylinder clearance in a compression should be .........


   A.As large as possible

   B.As small as possible

   C.about 50% of sweet volume

   C.About 100% of swept volume


✔ View Answer


B.As small as possible

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19. Separators are generally installed in compressors......


   A.After the intercooler

   B.Before the intercooler

   C.Before the receiver

   D.After the intercooler


✔ View Answer


A.after the intercooler

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20. Euler's equation is applicable for .......


   A.Centrifugal compressor

   B.Axial compressor

   C.Pumps

   D.All of the above


✔ View Answer


D.All of the above

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