• 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
Allowable pressure on high pressure side or ammonia absorption system is of the order of

56 bars
Atmospheric pressure
24 bars
Slightly above atmospheric pressure

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is

0.4
0.6
0.67
0.376

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system

Ammonia vapours to weak solution
Strong solution to weak solution
Weak solution to strong solution
Strong solution to ammonia vapour

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
Reducing suction pressure in refrigeration cycle

Lowers evaporation temperature
All of these
Lowers compressor capacity because vapour is lighter
Increases power required per ton of refrigeration

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is

7.44 kW
3.72 kW
1.86 kW
18.6 kW

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Orange
Yellow
Red
Bright green

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
↑