Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches. 12 6 34 18 12 6 34 18 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum shell thickness for tank ≤ 15 metres diameter is limited to __________ mm, for reasons of elastic stability. 5 10 15 2 5 10 15 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, σ = yield strength and E = modulus of elasticity) Σ/E E E/σ Σ Σ/E E E/σ Σ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of a long tube vertical evaporator. None of these Tube dia is 3-6 cms, while tube length in 3-6 metres Steam is fed to the shell, whereas the liquor is filled inside the tube Liquor level is maintained at l/3rd to 1/2 of the height of the tube None of these Tube dia is 3-6 cms, while tube length in 3-6 metres Steam is fed to the shell, whereas the liquor is filled inside the tube Liquor level is maintained at l/3rd to 1/2 of the height of the tube ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of the distillation column. 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 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 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases. Running cost of cooling water for condenser Running cost of steam for reboiler Vapour & liquid load both Fixed charges initially Running cost of cooling water for condenser Running cost of steam for reboiler Vapour & liquid load both Fixed charges initially ANSWER DOWNLOAD EXAMIANS APP
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