Process Equipment and Plant Design Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle? Segmental baffle Helical type baffle Disk type baffle Flat plate extending across the wall Segmental baffle Helical type baffle Disk type baffle Flat plate extending across the wall ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Can accomodate less number of tubes for a given shell diameter Results in higher shell side pressure drop Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Can accomodate less number of tubes for a given shell diameter Results in higher shell side pressure drop Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Saddle supports are used for supporting __________ vessels. Horizontal cylinderical Thick walled vertical Tall vertical Thick spherical Horizontal cylinderical Thick walled vertical Tall vertical Thick spherical ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Baffles may be eliminated for Low viscosity liquids (< 200 poise) None of these Large diameter tanks High viscosity liquids (> 600 poise) Low viscosity liquids (< 200 poise) None of these Large diameter tanks High viscosity liquids (> 600 poise) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of the distillation column. None of these The purpose of the slot is to disperse the gas into the liquid in the form of small bubbles Generally, a skirt clerance of 0.5" to 1.5' is recommended to prevent plugging of the slots by residue build up If sufficient slot area is not provided, the gas may pass through the skirt clearance None of these The purpose of the slot is to disperse the gas into the liquid in the form of small bubbles Generally, a skirt clerance of 0.5" to 1.5' is recommended to prevent plugging of the slots by residue build up If sufficient slot area is not provided, the gas may pass through the skirt clearance ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For laminar flow (NRe < 2100) in steel pipe, the optimum inside pipe diameter is given by Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 3.9 Q0.45 . ρ0.23 Di, opt = 3 Q0.36 . ρ1.86 μ0.08 Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 3.9 Q0.45 . ρ0.23 Di, opt = 3 Q0.36 . ρ1.86 μ0.08 ANSWER DOWNLOAD EXAMIANS APP
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