• 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 Freon group of refrigerants are

Zoetrope refrigerants
Halocarbon refrigerants
Inorganic refrigerants
Hydrocarbon refrigerants

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg)

125 kJ/kg
25 kJ/kg
50 kJ/kg
100 kJ/kg

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The alignment circle is marked on the psychrometric chart at

26°C DBT and 50% RH
20°C DBT and 50% RH
26°C DBT and 60% RH
20°C DBT and 60% RH

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant is dry saturated vapour

After leaving the compressor
Before entering the condenser
Before entering the compressor
After leaving the condenser

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The domestic refrigerator uses following type of compressor

Miniature sealed unit
Axial
Centrifugal
Piston type reciprocating

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about

2.15
1
5.12
1.25

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
↑