Heat flows from one body to other when they have

Q.

Heat flows from one body to other when they have

A. different heat contents

B. different specific heat

C. different atomic structure

D. different temperatures

Answer & Explanation

Heat transfer takes place only if two bodies have different temperature, and also in direction of higher temperature to lower temperature.

Thus correct option is: D.

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Q.

Old houses were often built with high ceilings in the rooms so that they would be cooler in the warmer months. This was to take advantage of

A. Convection

B. Conduction

C. Radiation

D. Insulation

Answer & Explanation

Q.

Choose the correct equation

A. Nu = (Re) (Pr) (Gz)

B. Nu = (Re) (Pr) (St)

C. Nu = (Re)(Pr)

D. Nu = (Pr)(St)

Answer & Explanation

Q.

Maximum heat transfer rate is obtained in ______ flow.

A. Laminar

B. Turbulent

C. Creeping

D. transition region

Answer & Explanation

Q.

The Convective heat transfer coefficient in case of fluid flowing in the tubes is not affected by the tube length/diameter ratio, if the flow is in the ______ zone.

A. Laminar

B. Transition

C. Both 'a' & 'b'

D. Highly turbulent

Answer & Explanation

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Heat flows from one body to other when they have

Q. Heat flows from one body to other when they have

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More Questions Heat and Mass Transfer:

Q. Old houses were often built with high ceilings in the rooms so that they would be cooler in the warmer months. This was to take advantage of

Q. Choose the correct equation

Q. Maximum heat transfer rate is obtained in ______ flow.

Q. The Convective heat transfer coefficient in case of fluid flowing in the tubes is not affected by the tube length/diameter ratio, if the flow is in the ______ zone.

Q.

Heat flows from one body to other when they have

Q.

Old houses were often built with high ceilings in the rooms so that they would be cooler in the warmer months. This was to take advantage of

Q.

Choose the correct equation

Q.

Maximum heat transfer rate is obtained in ______ flow.

Q.

The Convective heat transfer coefficient in case of fluid flowing in the tubes is not affected by the tube length/diameter ratio, if the flow is in the ______ zone.