Process Equipment and Plant Design The slope of operating line in the rectifying section of a distillation column is unity, if the reflux ratio is Minimum 1 0 ∞ Minimum 1 0 ∞ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Triangular pitch tube layout as compared to square pitch in a shell and tube heat exchanger Permits the use of less tubes in a given shell diameter Facilitates comparatively easier external cleaning because of large clearance Permits the use of more tubes in a given shell diameter Both B and C Permits the use of less tubes in a given shell diameter Facilitates comparatively easier external cleaning because of large clearance Permits the use of more tubes in a given shell diameter Both B and C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Value of Peclet number = 0, is the representative of Laminar flow Plug flow Eddy diffusivity = 0 Complete back mixing Laminar flow Plug flow Eddy diffusivity = 0 Complete back mixing 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) E Σ Σ/E E/σ E Σ Σ/E E/σ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate. 4 1/2 8 2 4 1/2 8 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times.the design pressure. 1.5 to 2 >5 3 to 4 4 to 5 1.5 to 2 >5 3 to 4 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
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