• 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 freezing point of sulphur dioxide is

-77.7°C
-75.2°C
-135.8°C
-56.6°C

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process

Takes place at constant temperature
Takes place at constant pressure
Takes place at constant entropy
Involves no change in volume

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The operating pressure for refrigerating units using R-12 as a refrigerant is

30 bar
8 bar
15 bar
2 bar

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the

Condenser to the evaporator
Evaporator to the thermostat
Condenser to the expansion valve
Expansion valve to the evaporator

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
R-12 is generally preferred over R-22 in deep freezers since

It is miscible with oil over large range of temperatures
It gives higher coefficient of performance
All of these
It has low operating pressures

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The relative coefficient of performance is equal to

(Theoretical C.O.P.)/ (Actual C.O.P.)
(Actual C.O.P.) × (Theoretical C.O.P.)
None of these
(Actual C.O.P.) /(Theoretical C.O.P.)

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
↑