Heat Transfer Questions

Q.  Depending on the radiating properties, a body will be white when_________________?

a. p = 0, x = 0 and a = 1
b. p=l,T = 0anda = 0
c. p = 0, x = 1 and a = 0
d. x = 0, a + p = 1
e. a = 0, x + p = 1.


ANSWER: See Answer
 
where a = absorptivity, p = reflectivity, x = transmissivity
MCQs:  The horse power required in above case will be___________________?
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MCQs:  Motion of a liquid in a volute casing of a centrifugal pump is an example of____________________?
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MCQs:  Medium specific speed of a pump implies it is_________________?
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MCQs:  Indicator diagram of a reciprocating pump is a graph between________________?
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MCQs:  Any change in load is adjusted by adjusting following parameter on turbine______________?
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MCQs:  The maximum number of jets generally employed in impulse turbine without jet interference is________________?
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MCQs:  High specific speed of turbine implies it is__________________?
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MCQs:  Casting of a centrifugal pump is designed so as to minimize________________?
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MCQs:  Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between_________________?
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MCQs:  The flow rate in gear pump___________________?
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MCQs:  Reaction turbines are used for____________________?
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MCQs:  The angle of taper on draft tube is A. greater than 15° B. greater than 8° C. greater than 5° D. less than 8° E. less than 3°.___________________? The angle of taper on draft tube is
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MCQs:  In axial flow fans and turbines, fluid enters and leaves as follows________________?
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MCQs:  Air vessels in reciprocating pump are used to__________________?
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MCQs:  According to fan laws, at constant speed and capacity, the pressure and power vary_____________________?
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MCQs:  Maximum impulse will be developed in hydraulic ram when ___________________?
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MCQs:  A hydraulic intensifier normally consists of __________________?
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MCQs:  Hydraulic accumulator is used for____________________?
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MCQs:  Puck up the wrong statement about centrifugal pump_______________?
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MCQs:  Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of_______________?
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