Process Equipment and Plant Design In a shell and tube heat exchanger, the clearance of the tube is generally Not less than one-fourth of the tube diameter or 3/16" Equal to the tube diameter More in case of triangular pitch as compared to the square pitch tube layout More than the tube diameter Not less than one-fourth of the tube diameter or 3/16" Equal to the tube diameter More in case of triangular pitch as compared to the square pitch tube layout More than the tube diameter ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Any shell opening greater than 5 cms for a storage tank must be reinforced for reason of Preventing the local overstressing of the shell around the opening Making the joint leak proof None of these Reduction of discontinuity in shape at the junction Preventing the local overstressing of the shell around the opening Making the joint leak proof None of these Reduction of discontinuity in shape at the junction ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The centre to centre distance between two consecutive baffles in a shell and tube heat exchanger is called the baffle pitch or baffle spacing, which is more than 1/5th the I.D. of the shell. Which of the following is not a function of the baffles? To provide support to the tube bundle To reduce the induced vibration in the tubes To increase the residence time of shell side fluid To increase the tube side heat transfer co-efficient by inducing turbulence To provide support to the tube bundle To reduce the induced vibration in the tubes To increase the residence time of shell side fluid To increase the tube side heat transfer co-efficient by inducing turbulence 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 Is economical in operation Both B & C 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 Is economical in operation Both B & C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for a Tee (used as elbow, entering run) would be around 200 60 5 350 200 60 5 350 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid Containing suspended solids flows at low velocity Is of high specific gravity Is highly viscous Containing suspended solids flows at high velocity Containing suspended solids flows at low velocity Is of high specific gravity Is highly viscous Containing suspended solids flows at high velocity ANSWER DOWNLOAD EXAMIANS APP
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