Process Equipment and Plant Design Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter. 10 to 15 2.5 to 5 5 to 10 1.5 to 2 10 to 15 2.5 to 5 5 to 10 1.5 to 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method? Heat of mixing of normal liquid is assumed to be zero Reflux is not a saturated liquid Sensible heat changes for vapour & liquid are negligibly small Molar latent heat of the two components are equal Heat of mixing of normal liquid is assumed to be zero Reflux is not a saturated liquid Sensible heat changes for vapour & liquid are negligibly small Molar latent heat of the two components are equal ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds. 8 180 1 80 8 180 1 80 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Bubble cap tray is the most commonly used tray in large distillation column, because It eliminates the foaming and entrain-ment tendency during operation It incurs less pressure drop as compared to any other try designed for the same duty None of these Of its flexibility and nearly constant efficiency under varying conditions of operation It eliminates the foaming and entrain-ment tendency during operation It incurs less pressure drop as compared to any other try designed for the same duty None of these Of its flexibility and nearly constant efficiency under varying conditions of operation ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always Less than arithmetic mean value Both B & C More than geometric mean value More than arithmetic mean value Less than arithmetic mean value Both B & C More than geometric mean value More than arithmetic mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The maximum liquid gradient over a tray must not exceed 5" 0.5" -1.25" Half the tray spacing 2"-3.5" 5" 0.5" -1.25" Half the tray spacing 2"-3.5" ANSWER DOWNLOAD EXAMIANS APP