FILLING BLANKS-REFRIGERATION COMPONENTS
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FILLING BLANKS REFRIGERATION
COMPONENTS
Fill in the blanks increases deep understanding as well as knowledge. Especially fill in the blanks in University Question Papers is of utmost importance.
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Oil separator
Oil separator is always placed in the ————-line.
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Crank case
A crank case heater is connected in such a way so that it is ———–when the compressor is off.
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Compressor
The compressor is called the ————- of the refrigeration unit.
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Anemometer
Anemometer is used to measure the ————–.
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Dehydrator
Dehydrator is used to remove —————-from the refrigeration system.
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Refrigerant Leakage
———–to detect the leakage of Freon refrigerants.
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Thermo-couple
Thermo-couple is used to measure —————–.
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Ton of refrigeration
One ton of refrigeration is equal to ————–kJ/hour.
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Heat rejected in condenser
In a refrigeration system, heat rejected in the condenser is equal to the sum of —————- and———-.
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Sensible heat
Temperature difference senses—————-heat.
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Refrigerant
Chemical name of R-134a is ————————————.
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Horse power
One Horse power in S.I. units is equal to —————Watts.
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Running capacitor
Running capacitor is used to improve —————–.
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Condenser
Due to poor cooling in the condenser,——————-increases.
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Cooling capacity
Cooling capacity decreases with the decrease of————–pressure. Tons of refrigeration decreases with the increase of —————pressure.
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COP
COP increases with the increase of ———————pressure.
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Solenoid valve
Solenoid valve is fitted in the —————–line.
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Sight glass
Bubbles in the sight glass indicates————–of refrigerant in the refrigeration circuit.
The compressor never stops when there is —————of refrigerant.
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Ice
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Ice is —————- than water.
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Saturated air
In the saturated air, dry bulb temperature, wet bulb temperature and ————-temperature are same.
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Boiling point
The normal boiling point of ammonia is ———————. Water is used as a refrigerant ————— ——-refrigeration.
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Specific heat
The highest specific heat is for —————.
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Entropy
—————-is constant in a reversible adiabatic process.
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Refrigerator capacity
The capacity of a refrigerator is expressed in —————–.
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Water cooler capacity
The capacity of a water cooler is expressed in —————–. The air conditioner capacity is expressed in —————–.
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Air refrigerant
Air is used as a refrigerant in the ————————-air conditioning.
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Vapor absorption system
There is no ———–part in a vapor absorption system. The gases charged in an absorption system are ————– and ———-. The pressure in the various parts of an absorption system is ——————.
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Piping
The material of piping in vapor absorption is—————–.The material of pipe with R-134a is ———————. Liquid refrigerant —————-in the evaporator.
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Receiver
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Receiver is fitted after the —————-unit.
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Accumulator
Accumulator is fitted between ————– and ————–. An accumulator separates ————-and ————.
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Muffler
The function of the muffler in a refrigeration system is to reduce ———-. Cooling in the evaporator is due to ———-heat transfer.
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Expansion process
The expansion process is at —————– enthalpy. The expansion process changes high pressure high temperature liquid into low pressure ——- and ——– . The expansion valve in small refrigeration unit is a ————————.
ANS: 1.Discharge, 2.on, 3.heart, 4.velocity, 5. Moisture, 6. Halide torch, 7. Temperature, 8. 12600, 9.Cooling effect, work input, 10.sensible, 11. Tetra-fluoro ethane 12. 735.5, 13. Power factor, 14.discharge, 15. Evaporator, discharge 16. Evaporator, 17. Liquid 18. Vapor, 19. Shortage, 20. Excess, 19. Lighter, 20.dew point, 21. –33.50C, Steam jet, 22. Water, 23. Entropy, 24. Tons, 25. Liters, tons, 27.aircraft 27. Moving, ammonia, Hydrogen, same 28. Steel, copper, Evaporates, 29. Condenser, 30. Evaporator, compressor, Liquid, Vapor, 31. Noise, Latent 32.Constant, Liquid, Vapor, Capillary tube