Heat Transfer Questions


Q.  Thermal diffusivity of a substance is __________________?

a. directly proportional to thermal con¬ductivity
b. inversely proportional to density of substance
c. inversely proportional to specific heat
d. all of the above
e. none of the above


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  According to Wien’s law, the wavelength corresponding to maximum energy is proportion to ________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  For starting an axial flow pump, its delivery valve should be____________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Centrifugal pump is started with its delivery valve __________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be _________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Multistage centrifugal pumps are used to obtain___________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by_______________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  One horsepower is equal to_________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Axial flow pump is started with its delivery valve________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Head developed by a centrifugal pump depends on___________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  In a centrifugal pump casing, the flow of water leaving the_______________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of____________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  The efficiency of a centrifugal pump is maximum when its blades are__________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be__________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water would discharge_____________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  The optimum value of vane exit angle for a centrifugal pump impeller is_________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  In centrifugal pumps, maximum efficiency is obtained when the blades are_________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  In a centrifugal pump, the liquid enters the pump__________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  Low specific speed of a pump implies it is____________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  For small discharge at high pressure, following pump is preferred_____________________?
Category: Mechanical Engineering Questions,   Published by: teswesm
MCQs:  The horse power required in above case will be___________________?
Category: Mechanical Engineering Questions,   Published by: teswesm