• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Most thermostatic expansion valves are set for a superheat of

15°C
20°C
10°C
5°C

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

Evaporation of the refrigerant liquid
Condensation of the refrigerant vapour
Compression of the refrigerant vapour
Metering of the refrigerant liquid

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The coefficient of performance is the ratio of the refrigerant effect to the

Heat of compression
Work done by compressor
Enthalpy increase in compressor
All of these

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)

(h1 - h2)/ (hA - h2)
(hA - h2)/ (h1 - h2)
(hA - h1)/ (h2 - h1)
(h2 - hA)/ (h1 - h2)

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice

In 1 hour
In 1 minute
In 12 hours
In 24 hours

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
In a domestic vapour compression refrigerator, the refrigerant commonly used is

Ammonia
R-12
CO?
All of these

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Refrigeration and Air Conditioning

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑