Related Questions

If a truck can carry 10 to 16 boxed refrigerators, then what is the least number of refrigerators that 4 trucks can carry?
A 40
B 52
C 48
D 64
The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system
A Is as light as possible
B Has very high C.O.P
C Employs minimum quantity of refrigerant
D Consumer minimum horse power
Frost formation on the evaporator tubes in the domestic refrigerators
A Can be prevented by proper design
B Decreased compressor power
C Causes heat loss due to poor heat transfer
D Is immaterial
The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.
A Refrigerant cooling
B Evaporator
C Condenser
D Throttling
Refrigerants commonly used for domestic refrigerators are
A Ethyl chloride or methyle chloride
B Freon-12
C Propane
D NH3 or CO2
A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect?
A Vapor compression cycle using expansion valve
B Air refrigeration cycle
C Vapor compression cycle using expansion engine
D Carnot refrigeration cycle
One Ton of Refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice---
A In 1 hour
B In 24 hour
C In 10 minutes
D In 12 hour
Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is
A Positive
B Negative
C Zero
D Infinity
Domestic refrigerator usually works on the __________ refrigeration cycle.
A Carnot
B Air
C Absorption
D Vapour-ejection
Which of the following motors is usually used in household refrigerators?
A D.C. shunt motor
B D.C. series motor
C Single phase induction motor (split phase start or induction run motor)
D Reluctance motor

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