Heat Transfer Thermal conductivity of a gas at low density, __________ with increase in temperature. Remains unchanged Decreases May increase or decrease; depends on the gas Increases Remains unchanged Decreases May increase or decrease; depends on the gas Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl and Reynold's analogies are identical for Prandtl number value of 1 0.5 5 1 0.5 5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Intermittant tube cleaning is possible to be done in case of a __________ evaporator. Horizontal tube Basket type Calendria None of these Horizontal tube Basket type Calendria None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop For low heat load Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop For low heat load ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are Re.Gz Nu, Pr, Re Nu, Gz Nu, Pr Re.Gz Nu, Pr, Re Nu, Gz Nu, Pr ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are Never different Linearly related Different Same Never different Linearly related Different Same ANSWER DOWNLOAD EXAMIANS APP
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