Heat Transfer Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called Natural convection Forced convection Conduction Radiation Natural convection Forced convection Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? Square pitch None of these Diagonal square pitch Triangular pitch Square pitch None of these Diagonal square pitch Triangular pitch ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashhoff number is given by gD³βΔtP²/μ gD³.β.Δtρ²/μ² gD2βΔtρ/μ² gD2βΔtP²μ gD³βΔtP²/μ gD³.β.Δtρ²/μ² gD2βΔtρ/μ² gD2βΔtP²μ ANSWER DOWNLOAD EXAMIANS APP
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 Heat flux, as defined in heat flow is analogous to __________ in electricity flow. Voltage None of these Resistance Current Voltage None of these Resistance Current ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will Decrease Remain unchanged Increase Either increase or decrease; depends on the coolant flow rate Decrease Remain unchanged Increase Either increase or decrease; depends on the coolant flow rate ANSWER DOWNLOAD EXAMIANS APP
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