Previous Year Very Short Questions of RACE (DIPLOMA Mechanical Engineering (RAC) 5th)

RAC Equipment

Previous year question paper with solutions for RAC Equipment

Our website provides solved previous year question paper for RAC Equipment . Doing preparation from the previous year question paper helps you to get good marks in exams. From our RACE question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.

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  1. The work requirement for a reciprocating compressor is minimum when the compression process is _______.(isothermal/isentropic)
  2. Most air cooled condensers are designed to operate with a temperature difference of________.(22oC/14oC)
  3. The temperature of the boiling refrigerant in the evaporator must always be_______ than that of the surrounding medium.(higher/lower)
  4. The expansion devices used with flooded evaporators are called_________ valves.(float/expansion)
  5. The air at inlet of a fan is________ atmospheric pressure.(above/below)
  6. The working of thermostatic expansion valve depends upon increase or decrease of _________ of the evaporator.(temperature/pressure)
  7. The bare tube evaporators are also known as________ surface evaporators. (prime/extended)
  8. __________is an air flow measuring device.( Pitot tube/Manometer)
  9. The instrument which measures humidity of air is known as________.(anemometer/psychrometer )
  10. A low pressure and high pressure cut out switch controls low and high pressure_______.(alternately/simultaneously)
  11. The rotary compressors are suitable for refrigerants having ………….specific volume.(High/low)
  12. The heat carrying capacity of air condensers is …………………………………….(Good/poor)
  13. An evaporator is use in ……. …pressure side of a refrigeration system. (Low/High).
  14. ………………..tube is used as an expansion device in refrigeration systems.
  15. To protect a compressor from over loading ……………………is used.
  16. The commonly used materials (any two) for refrigeration piping are …………………………..
  17. …………………..is used to measure air flow of air conditioners.
  18. ………………..is used for air flow measurement in air conditioning systems.
  19. …………cooled condenser is used in window type air conditioners.
  20. ……………… is used for temperature control in domestic refrigerators.