Process Equipment and Plant Design In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes) None of these (D₂² - D₁²)/D₁² D₂ - D₁ (D₂² - D₁²)/D₂² None of these (D₂² - D₁²)/D₁² D₂ - D₁ (D₂² - D₁²)/D₂² ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A stuffing box is used for Absorbing the contraction/expansion of pipeline due to temperature changes Facilitating smooth opening and closing of a valve Prevention of fluid leakage around moving parts Reducing the resistance of fluid flow Absorbing the contraction/expansion of pipeline due to temperature changes Facilitating smooth opening and closing of a valve Prevention of fluid leakage around moving parts Reducing the resistance of fluid flow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Steam is preferred to be used as a heating medium in heat exchangers, because of its Low cost High latent heat Non-corrosive condensate High film co-efficient Low cost High latent heat Non-corrosive condensate High film co-efficient ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around 100 and 250 250 and 600 25 and 60 3 and 5 100 and 250 250 and 600 25 and 60 3 and 5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell Remains same throughout Decreases upwards Increases upwards May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell Remains same throughout Decreases upwards Increases upwards ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Longitundinal stress induced in a thin walled cylindrical storage vessel is PD/6t PD/2t PD/3t PD/4t PD/6t PD/2t PD/3t PD/4t ANSWER DOWNLOAD EXAMIANS APP
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