Heat Transfer Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. 1 to 100 10 to 100 100 to 1000 0.5 to 50 1 to 100 10 to 100 100 to 1000 0.5 to 50 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD correction factor which is to be applied for a cross-flow heat exchanger increases with increase in the number of shell passes. Its value for a single pass cross flow heat exchanger is Zero <1 >1 1 Zero <1 >1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has maximum thermal conductivity? Nitrogen Iron Coal Tar Nitrogen Iron Coal Tar ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. Increases May increase or decrease ; depends on the material Remains constant Decreases Increases May increase or decrease ; depends on the material Remains constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An ejector is used to Increase temperature Remove condensate Increase pressure None of these Increase temperature Remove condensate Increase pressure None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius 'r' of insulation on a pipe is given by r = h/k r = 2k/h r = k/h r = k/2h r = h/k r = 2k/h r = k/h r = k/2h ANSWER DOWNLOAD EXAMIANS APP
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