Heat Transfer Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger? Effective tube surface area for convective heat transfer Convective heat transfer co-efficient All of these Tube side pressure drop and the heat transfer rate Effective tube surface area for convective heat transfer Convective heat transfer co-efficient All of these Tube side pressure drop and the heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Is not affected Increases May increase or decrease; depends on the feed Decreases Is not affected Increases May increase or decrease; depends on the feed Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A concentric double pipe heat exchanger as compared to the shell and tube heat exchanger for the same heat load requires Lower maintenance cost More space None of these Less heating surface Lower maintenance cost More space None of these Less heating surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 1 20 10 30 1 20 10 30 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Arrest the entrained liquid Regulate the vapor flow Create vacuum Vent the non-condensible gases Arrest the entrained liquid Regulate the vapor flow Create vacuum Vent the non-condensible gases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate. Does not affect Increases Decreases May increase or decrease, depends on the type of baffle Does not affect Increases Decreases May increase or decrease, depends on the type of baffle ANSWER DOWNLOAD EXAMIANS APP
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