In S.J. unit, one ton of refrigeration is equal to
210 kJ/ min
21 kJ/ min
420 kJ/ min
840 kJ/ min
- The difference between dry bulb temperature and wet bulb temperature, is called
- The horizontal and non-uniformly spaced lines on a psychrometric chart indicates
- The power per tonne of refrigeration is
- In case of sensible cooling of air, the coil efficiency is given by
- In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s.…
- The dehumidification process, on the psychrometric chart, is shown by
- Allowable pressure on high pressure side or ammonia absorption system is of the order of
- Air refrigeration cycle is used in
- The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.
- The pressure at the inlet of a refrigerant compressor is called
- A good refrigerant should have
- The refrigerant used in small tonnage commercial machines (hermetically sealed units) is
- The humidity ratio or specific humidity is the mass of water vapour present in
- A vapour absorption refrigerator uses __________ as a refrigerant.
- The C.O.P of a refrigeration cycle with increase in evaporator temperature, keeping condenser temperature…
- In mechanical refrigeration system, the refrigerant has the maximum temperature
- A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will…
- A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking…
- Cooling water is required for following equipment in ammonia absorption plant
- The wet bulb temperature during sensible heating of air
- Vertical lines on pressure-enthalpy chart show constant
- Which of the following statement is wrong?
- Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption…
- Which of the following refrigerant is highly toxic and flammable?
- In a refrigeration system, the expansion device is connected between the
- Wet bulb temperature is the temperature of air recorded by a thermometer, when
- The superheating in a refrigeration cycle
- The leakage in a refrigeration system using Freon is detected by
- The general rule for rating refrigeration systems (excepting for CO₂ system) is to approximate…
- Condensing temperature in a refrigerator is the temperature