Process Equipment and Plant Design Hoop (circumferential) stress induced in a thin walled 'Horton Sphere' used for the storage of liquid ammonia under pressure is pD/4t pD/2t pD/6t pD/3t pD/4t pD/2t pD/6t pD/3t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by 4(0.86p² - πd²/4)/πd (p² - πd²/4)/πd (4p² - πd²/4)/πd 4(0.86p² - πd²)/πd 4(0.86p² - πd²/4)/πd (p² - πd²/4)/πd (4p² - πd²/4)/πd 4(0.86p² - πd²)/πd ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around 45 and 75 5 and 10 180 and 300 300 and 500 45 and 75 5 and 10 180 and 300 300 and 500 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. 3 to 4 1.5 to 2 >5 4 to 5 3 to 4 1.5 to 2 >5 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Heat transfer co-efficient, hG(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to 1.004G0.8 HG = 0.0176G0.37 0.0176G1.37 HG = 1.004G0.37 1.004G0.8 HG = 0.0176G0.37 0.0176G1.37 HG = 1.004G0.37 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/σ Σ/E E Σ E/σ Σ/E E ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS