Process Equipment and Plant Design Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress. Equal to Twice Eight times Half Equal to Twice Eight times Half ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In chemical process equipments, the conical bottom heads used, usually has an apex angle of 80° 60° 40° 20° 80° 60° 40° 20° 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 = 3.9 Q0.45 . ρ0.23 Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 3 Q0.36 . ρ1.86 μ0.08 Di, opt = 3.9 Q0.45 . ρ0.23 Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 3 Q0.36 . ρ1.86 μ0.08 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/σ Σ/E Σ E E/σ Σ/E ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the Larger reactor should come first None of these Smaller reactor should come first Equal sized reactors are the best Larger reactor should come first None of these Smaller reactor should come first Equal sized reactors are the best ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times. Considerably less than 9 About 3 Considerably more than 9 About 9 Considerably less than 9 About 3 Considerably more than 9 About 9 ANSWER DOWNLOAD EXAMIANS APP
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