• 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
The wet bulb temperature during sensible heating of air

None of these
Remains constant
Increases
Decreases

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Constant temperature lines
Constant entropy lines
Constant pressure lines
Constant total heat lines

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature)

T₁ / (T₂ - T₁)
T₂/ (T₂ - T₁)
(T₁ - T₂)/T₁
(T₂ - T₁)/T₁

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
Critical temperature is the temperature above which

Water will evaporate
A gas will never liquefy
A gas will immediately liquefy
Water will never evaporate

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The leaks in a refrigeration system using Freon are detected by

Smelling
Halide torch which on detection produces greenish flame lighting
Sulphur sticks which on detection gives white smoke
Using reagents

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

Cooled and dehumidified
Heated and humidified
Cooled and humidified
Heated and dehumidified

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
↑