Process Equipment and Plant Design Pick out the wrong statement pertaining to a shell and tube heat exchanger. The minimum value of baffle spacing is 50 mm The maximum value of baffle spacing is equal to the I.D. of the shell The maximum unsupported tube span is generally about 75 times tube diameter, but is reduced to about 60 times for aluminium, copper & alloys of these Disk and doughnut baffle is the most commonly used baffle The minimum value of baffle spacing is 50 mm The maximum value of baffle spacing is equal to the I.D. of the shell The maximum unsupported tube span is generally about 75 times tube diameter, but is reduced to about 60 times for aluminium, copper & alloys of these Disk and doughnut baffle is the most commonly used baffle ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes Are less prone to fouling None of these Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less Are easier to clean Are less prone to fouling None of these Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less Are easier to clean ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Of the pressure vessels, with same thickness but different diameters, which one withstands higher pressure? Larger dia long vessel Smaller dia vessel Strength of the vessel is same irrespective of the diameter Larger dia vessel Larger dia long vessel Smaller dia vessel Strength of the vessel is same irrespective of the diameter Larger dia vessel ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times.the design pressure. 1.5 to 2 3 to 4 >5 4 to 5 1.5 to 2 3 to 4 >5 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area) Sa = 1.5 Aa Aa = 1.5 Sa 1.2 Aa = 1.2 Sa Aa = Sa Sa = 1.5 Aa Aa = 1.5 Sa 1.2 Aa = 1.2 Sa Aa = Sa ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers? 6.5 cms Equal to tube I.D 6.5 mm Equal to tube O.D 6.5 cms Equal to tube I.D 6.5 mm Equal to tube O.D ANSWER DOWNLOAD EXAMIANS APP
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