Heat flowing from one side to other depends directly on ___________________?

PicK up the wrong case?
D. None of these

Heat transfer in liquid and gases takes place by_____________________?

A. Conduction
B. Convection
C. Radiation
D. Conduction and convection

Unit of thermal conductivity in S.I. units is__________________?

A. j/m2 sec
B. j/m °k sec
C. w/m °k
D. a. and c. above

Sensible heat is the heat required to __________________?

A. Change vapour into liquid
B. Change liquid into vapour
C. Increase the temperature of a liquid of vapour
D. Convert water into steam and superheat it

Thermal conductivity of solid metals with rise in temperature normally___________________?

A. Increases
B. Decreases
C. Remains constant
D. May increase or decrease depending on temperature

When heat is transferred from one particle of hot body to another by actual motion of the heated particles, it is referred to as heat transfer by ___________________?

A. Conduction
B. Convection
C. Radiation
D. Conduction and convection

Unit of thermal conductivity in M.K.S. units is ___________________?

A. Kcal/kg m2 °c
B. Kcal-m/hr m2 °c
C. Kcal/hr m2 °c
D. Kcal-m/hr °c

Thermal conductivity of non-metallic amorphous solids with decrease in temperature __________________?

A. Increases
B. Decreases
C. Remains constant
D. May increase or decrease depending on temperature

The insulation ability of an insulator with the presence of moisture would_________________?

A. Increase
B. Decrease
C. Remain unaffected
D. May increase/decrease depending on temperature and thickness of insulation

Heat is closely related with___________________?

A. Liquids
B. Energy
C. Temperature
D. Entropy