Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the________________?

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Which of the following is the most widely used heat insulating material for pipelines carrying steam ?

A. Tar dolomite bricks followed by asbestos B. Fireclay refractory followed by aluminium sheet C. Cotton followed by aluminium foil D. 85% magnesia cement and glass wool...

A sphere of radius ‘R1’ is enclosed in a sphere of radius ‘R2’. The view (or shape) factor for radiative heat transfer of the outer sphere with respect to the inner sphere is ________________?

A. 0 B. R2/(R1+R2) C. 1 D. (R1/R2)2...

Water is normally used as a coolant in the heat exchange equipments mainly because of its___________________?

A. Abundance & high heat capacity B. Low density C. Low viscosity D. High fluidity...

The overall resistance for heat transfer through a series of flat resistance, is the _____________ of the resistances?

A. Average B. Geometric mean C. Product D. Sum...

The unit of heat transfer co-efficient is_________________?

A. BTU/hr. ft2°F B. BTU/hr. °F. ft C. BTU/hr. °F D. BTU/hr. ft...