A. before entering the expansion valve

B. after passing through the expansion throttle valve

C. before entering the compressor

E. before passing through the condensei

B. electrolux refrigerator

C. dual cycle

D. carnot cycle

E. vapour absorption

A. 2-4 bars

B. 7-10 bars

D. atmospheric pressure

E. slightly above atmospheric pressure

A. 1.2

C. 10

D. 0.2

E. 5

A. compression

B. direct

D. none of the above

E. indirect

A. there is no such consideration

B. pone of the above

D. less than 2 kg

E. more than 10 kg

A. Tow specific heat of liquid

B. low specific volume of vapour

C. k up the wrong statement ?

D. high latent heat of vaporisation

E. higher critical temperature

B. 80 kcal/min

C. 80 kcal/hr

D. 50 kcal/kr

E. 1000 kcal/day

A. 6

C. 0.2

D. 10

E. 1.2

A. none of the above

B. water will evaporate

C. a gas will immediately liquefy

D. water will never evaporate

A. is equal to 1

B. depends upon the make

C. is less than 1

E. depends upon the weather conditions

A. unpredictable

B. same

C. more or less depending on ambient conditions

D. more

A. lithium bromide is driven out of solution

B. lithium bromide mixes with ammonia

D. ammonia vapour is driven out of solution

E. weak solution mixes with strong solution

A. pressure lines

B. volume lines

D. temperature lines

E. entropy lines

B. unpredictable

C. remain unaffected

D. may increase or decrease depending on the type of refrigerant used

E. decrease

B. saturation point of liquid

C. critical point

D. sublimation temperature

E. triple point

B. heat transfer

C. evaparator

D. compressor

E. condenser

B. high

C. any value

D. there is no such criterion

E. optimum

A. before entering the expansion valve

B. after passing through the condenser

D. before passing through the condenser

E. after passing through the expansion or throttle valve

B. refrigerant cooling tubes

C. capillary tubes

D. evaporator tubes

E. throttling device

B. smaller cabinet should be used

C. refrigerant with high boiling point must be used

D. refrigerant with lower evaporation temperature should be used

E. bigger cabinet should be used

A. Rankine cycle

B. reversed Camot cycle

D. reversed Rankine cycle

E. Carnot cycle

B. after passing through the condenser

C. before passing through the condenser

D. before entering the compressor

E. after passing through the expansion or thiottle valve

B. 420 kJ/min

C. 840 kJ/min

D. 105 kJ/min

E. 21 kJ/min

B. of evaporator

C. of freezing zone

D. of cooling medium

E. condensing temperature of ice

A. none of the above

B. zero work input

C. maximum work input

E. nearly same work input as for vapour compression cycle

B. Carnot

C. Ericsson

D. Stirling

E. none of the above

A. in 10 hours

B. in 1 minute

C. in 1 hour

E. in 12 hours

A. 5 tons

B. 10 tons

C. 40 tons

E. 100 tons

A. before entering the compressor

B. after passing through the expansion or throttle valve

C. after passing through the condenser

E. before [entering the expansion valve

A. temperature, pressure, and specil volume

B. specific volume and enthalpy

D. temperature, pressure and enthalpy

E. temperature and enthalpy

B. 33.3C

C. -50C

D. -100C

E. 0C

A. none of the above

C. equal to unity

D. always less than unity

E. any one of the above

B. smaller/bigger depending on capacity

C. unpredictable

D. smaller

E. equal

A. mixture of ice, water and vapour under equilibrium conditions under NTP conditions

B. solid and dry ice

C. water at 0C

E. ice at 4C

A. 1-actual COP x theoretical COP

B. 1-actual COP/fheoretical COP.

D. theoretical COP/actual COP

E. actual COP x theoretical COP

A. 0.8

B. 0.5

D. 1.25

E. none of the above

B. smelling

C. sulphur sticks which on detection gives white smoke

D. sensing reduction in pressure

E. using reagents

A. non-inflammable

B. non-toxic

C. toxic and non-inflammable

D. none of the above

A. corrosion of whole system

B. ineffective refrigeration

C. breakdown of refrigerant

E. high power consumption

A. takes place at constant enthalpy

C. takes place at constant temperature

D. involves no change in volume

E. takes place at constant entropy

A. constant volume lines

B. constant entropy lines

C. constant total heat lines

E. constant temperature lines

B. its input only in the form of heating

C. cooling below 0C

D. noisy operation

E. very little power consumption

B. Freon-12

C. NH3

D. S02

E. C02

A. none of the above

B. unpredictable

D. equally.

E. less

B. 25%

C. 100%

D. 10%

E. 75%

A. low pressure side near receiver

B. anywhere in the cycle

D. delivery of compressor

E. suction of compressor

A. may increase or decrease depending on the type of refrigerant used

B. unpredictable

C. remain unaffected

E. decrease

A. commercial refrigerators

B. such a cycle does not exist

D. domestic refrigerators

E. air conditioning

A. none of the above

B. it permits higher speeds to be used

C. it permits complete evaporation in the evaporator

E. it results in high volumetirc and mechanical efficiency