Reciprocating air compressor is best suited for___________________?

Related Mcqs:

1. More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than____________________?

   A. 2 kg/cm2
   B. 6 kg/cm2
   C. 10 kg/cm2
   D. 14.7 kg/cm2
   E. none of the above

2. Rotary compressor is best suited for_____________________?

   A. large quantity of air at high pressure
   B. small quantity of air at high pressure
   C. small quantity of air at low pressure
   D. large quantity of air at low pressure
   E. any one of the above

3. 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
   E. two isobaric, two adiabatic and one constant volume

4. 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
   E. two isobaric, two adiabatic and one constant volume

5. The clearance volume of the air compressor is kept minimum because____________________?

   A. it allows maximum compression to be achieved
   B. it greatly affects volumetric efficiency
   C. it results in minimum work
   D. it permits isothermal compression
   E. none of the above

6. An air compressor may be controlled by____________________?

   A. throttle control B. clearance control
   C. blow-off control
   D. any one of the above
   E. none of the above

7. The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is_____________________?

   A. less
   B. more
   C. same
   D. more/less depending on compressor capacity
   E. unpredictable

8. For supplying intermittent small quantity of air at high pressure, following compressor is best suited__________________?

   A. centrifugal
   B. reciprocating
   C. axial
   D. screw
   E. turbo jet

9. Maximum delivery pressure is a rotary air compressor is of the order of__________________?

   A. 6 kg/cm2
   B. 10 kg/cm2
   C. 16 kg/cm2
   D. 25 kg/cm2
   E. 40 kg/cm2

10. The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is____________________?

    A. heated
    B. compressed air before entering the combustion chamber is heated
    C. bled gas from turbine is heated and readmitted for complete expansion
    D. exhaust gases drive the compressor
    E. part of exhaust gases are heated and mixed up with atmospheric air to utilise exhaust heat