WorksheetsDetermine the basic operating conditions of simple vapour compre
Total questions: 20
Worksheet time: 10mins
The name of part ( 1 ) in the figure is:
Condenser
Capillary tube
Evaporator
Compressor
The name of part ( 3 ) in the figure is:
Condenser
Capillary tube
Evaporator
Compressor
The name of process ( 1 2 ) in the figure is:
Compression
Condensation
Throttling
Evaporation
The name of process ( 2 3 ) in the figure is:
Compression
Condensation
Throttling
Evaporation
Refrigeration effect process (R.E) is:
h 1 - h 4
h 2 - h 3
h 2 - h 1
RE / WD
The coefficient of performance of cycle (COP) is:
h 1 - h 4
h 2 - h 3
h 2 - h 1
RE / WD
The sub cooled zone is:
Zone no 2
Zone no 6
Zone no 4
Critical point
The superheated zone is:
Zone no 2
Zone no 6
Zone no 4
Critical point
The saturated vapor line is:
Line no 1
Line no 5
Point 3
Point B
The zone condition of refrigerant mixture is :
Zone 2
Zone 6
Zone 4
Critical point
One ton refrigeration is equal to:
8000 btu/ hr
10000 btu/ hr
12000 btu/ hr
16 btu/hr
The moisture in a refrigerant is removed by
Evaporator
Safety relief valve
Dehumidifier
Driers
The C O P of a domestic refrigerator
Is less than 1
Is more than 1
Is equal to 1
Depends upon the make
The unit of enthalpy is :
Degree Celsius (oC)
psi
bar
kilojoule / kilogram (kj /kg)
Sub-cooling liquid refrigerant is to
reduce compressor work done
increase compressor work done
increase cooling effect
none of the all
The unit of pressure in SI units:
kilogram (kg)
kilo joule (kj)
psi
cm
The function of condenser is:
Reject heat
Absorb heat
increase pressures
Reduce pressures
The function of compressor is:
Make two levels of pressures
Absorb heat
Reject heat
Control refrigerant flow
The function of capillary tube is:
increase pressures
Absorb heat
Reject heat
Control refrigerant flow
The function of evaporator is:
change pressures
Absorb heat
Reject heat
Control refrigerant flow
