• 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 C.O.P. of a heat pump working on a reversed Carnot cycle is

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

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is

Freon
Brine
Carbon dioxide
Ammonia

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
During sensible cooling of air, specific humidity

Remains constant
Decreases
None of the listed here
Increases

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Carnot cycle
Electrolux refrigerator
Vapour compression
Vapour absorption

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and

Lithium bromide
R-12
Sulphur dioxide
Carbon dioxide

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will

Increase
Decrease
Remain unaffected
May increase or decrease depending on the type of refrigerant used

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
↑