Pick up the wrong case. Heat flowing from one side to other depends directly on

Heat and Mass Transfer
Pick up the wrong case. Heat flowing from one side to other depends directly on

Thickness

Time

Face area

Temperature difference

Thickness

Time

Face area

Temperature difference

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Heat and Mass Transfer
Heat transfer in liquid and gases takes place by

Conduction

Conduction and convection

Convection

Radiation

Conduction

Conduction and convection

Convection

Radiation

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Heat and Mass Transfer
Sensible heat is the heat required to

Change vapour into liquid

Increase the temperature of a liquid of vapour

Change liquid into vapour

Convert water into steam and superheat it

Change vapour into liquid

Increase the temperature of a liquid of vapour

Change liquid into vapour

Convert water into steam and superheat it

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Heat and Mass Transfer
Which of the following property of air does not increase with rise in temperature?

Dynamic viscosity

Thermal diffusivity

Thermal conductivity

Density

Dynamic viscosity

Thermal diffusivity

Thermal conductivity

Density

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Heat and Mass Transfer
Conduction is a process of heat transfer

None of these

From one particle of the body to another without the actual motion of the particles

From one particle of the body to another by the actual motion of the heated particles

From a hot body to a cold body, in a straight line, without affecting the intervening medium

None of these

From one particle of the body to another without the actual motion of the particles

From one particle of the body to another by the actual motion of the heated particles

From a hot body to a cold body, in a straight line, without affecting the intervening medium

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Heat and Mass Transfer
Thermal conductivity of a material may be defined as the

Quantity of heat flowing in one second through one cm cube of material when opposite faces are maintained at a temperature difference of 1°C

All of these

Quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1°C

Heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces

Quantity of heat flowing in one second through one cm cube of material when opposite faces are maintained at a temperature difference of 1°C

All of these

Quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1°C

Heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces

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Heat and Mass Transfer

Heat and Mass Transfer Pick up the wrong case. Heat flowing from one side to other depends directly on

Heat and Mass Transfer Heat transfer in liquid and gases takes place by

Heat and Mass Transfer Sensible heat is the heat required to

Heat and Mass Transfer Which of the following property of air does not increase with rise in temperature?

Heat and Mass Transfer Conduction is a process of heat transfer

Heat and Mass Transfer Thermal conductivity of a material may be defined as the

Heat and Mass Transfer
Pick up the wrong case. Heat flowing from one side to other depends directly on

Heat and Mass Transfer
Heat transfer in liquid and gases takes place by

Heat and Mass Transfer
Sensible heat is the heat required to

Heat and Mass Transfer
Which of the following property of air does not increase with rise in temperature?

Heat and Mass Transfer
Conduction is a process of heat transfer

Heat and Mass Transfer
Thermal conductivity of a material may be defined as the