• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Heat and Mass Transfer

Heat and Mass Transfer
According to Stefan's law, the total radiation from a black body per second per unit area is proportional to

Absolute temperature
T
T5
T2

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
An electric cable of aluminium conductor (k = 240 W/mK) is to be insulated with rubber (k = 0.15 W/mK). The cable is to be located in air (h = 6 W/m²). The critical thickness of insulation will be

800 mm
160 mm
40 mm
25 mm

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
According to Newton's law of cooling, the heat transfer from a hot body to a cold body is

Either (A) or (B)
Directly proportional to the difference of temperatures between the two bodies
Both (A) and (B)
Directly proportional to the surface area

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat)

(L.H - S.H)/S.H
S.H/(L.H - S.H)
(S.H + L.H) /S.H
S.H/(S.H + L.H)

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
All radiations in a black body are

Refracted
Reflected
Transmitted
Absorbed

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
Heat transfer by radiation mainly depends upon

Kind and extent of its surface
Nature of the body
Its temperature
All of these

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Heat and Mass Transfer

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
↑