Process Equipment and Plant Design In packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing. 25-50 50-75 200-250 750-1000 25-50 50-75 200-250 750-1000 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Hoop (circumferential) stress induced in a thin walled 'Horton Sphere' used for the storage of liquid ammonia under pressure is pD/2t pD/6t pD/3t pD/4t pD/2t pD/6t pD/3t pD/4t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers? 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 6.5 cms ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Employs high velocity, high heat transfer rate and less heating surface requirement Both B & C Is economical in operation Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Employs high velocity, high heat transfer rate and less heating surface requirement Both B & C Is economical in operation ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the Ultimate stress to breaking stress Working stress to ultimate stress Ultimate stress to working stress None of these Ultimate stress to breaking stress Working stress to ultimate stress Ultimate stress to working stress None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head. 6% of I.D. Either A or B, whichever is larger Either A or B, whichever is smaller 3 times the thickness 6% of I.D. Either A or B, whichever is larger Either A or B, whichever is smaller 3 times the thickness ANSWER DOWNLOAD EXAMIANS APP
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