Heat Transfer Which of the following has maximum thermal conductivity? Tar Iron Nitrogen Coal Tar Iron Nitrogen Coal ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum thermal conductivity? Nitrogen Carbon black Steel Tar Nitrogen Carbon black Steel Tar ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for Black painted bodies only Polished bodies only All bodies A black body Black painted bodies only Polished bodies only All bodies A black body ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling of milk in an open vessel is an example of __________ boiling. None of these Film Saturated nucleate Sub-cooled None of these Film Saturated nucleate Sub-cooled ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of a gas Remains same Decreases May increase or decrease depending on the type of gas Increases Remains same Decreases May increase or decrease depending on the type of gas Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Decrease Remain unchanged Increase May increase or decrease; depends on the pressure Decrease Remain unchanged Increase May increase or decrease; depends on the pressure ANSWER DOWNLOAD EXAMIANS APP
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