• 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
Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the value of C.O.P. of reversed Carnot Cycle?

0.8
0.5
0.25
1.25

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

1.86 kW
18.6 kW
7.44 kW
3.72 kW

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
One ton refrigeration corresponds to

80 kcal/ hr
50 kcal/ hr
80 kcal/ min
50 kcal/ min

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
Ammonia is

Toxic and non-inflammable
Non-inflammable
Non-toxic
Highly toxic and inflammable

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
Wet bulb temperature is the temperature of air recorded by a thermometer, when

It is not affected by the moisture present in the air
The moisture present in it begins to condense
Its bulb is surrounded by a wet cloth exposed to the air
None 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
↑