Heat Transfer Questions

Q.  Total emissivity of polished silver compared to black body is___________________?

a. same
b. higher
c. more or less same
d. very much lower
e. very much higher


ANSWER: See Answer
 
No explanation is available for this question!
TasDia Network - Mcqs | Signature | Lyrics
MCQs:  The emissive power of a body depends upon its___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  40% of incident radiant energy on the surface of a thermally transparent body is reflected back. If the transmissivity of the body be 0.15, then the emissivity of surface is____________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit_______________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Depending on the radiating properties, a body will be black when_________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  According to Stefan’s law, the total radiation from a black body per second per unit area is proportional to____________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The thermal diffusivities for solids are generally__________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as_________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Depending on the radiating properties, a body will be white when_________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Depending on the radiating properties, a body will be opaque when _________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  According to Wien’s law, the wavelength corresponding to maximum energy is proportion to ________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  For starting an axial flow pump, its delivery valve should be____________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Centrifugal pump is started with its delivery valve __________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
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: T-Code Scripts
MCQs:  Multistage centrifugal pumps are used to obtain___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
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: T-Code Scripts
MCQs:  One horsepower is equal to_________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Axial flow pump is started with its delivery valve________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Head developed by a centrifugal pump depends on___________________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  In a centrifugal pump casing, the flow of water leaving the_______________?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
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: T-Code Scripts