The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate. 43832 4 43834 2 TRUE ANSWER : ? YOUR ANSWER : ?
In a shell and tube heat exchanger, the clearance of the tube is generally More in case of triangular pitch as compared to the square pitch tube layout Not less than one-fourth of the tube diameter or 3/16" Equal to the tube diameter More than the tube diameter TRUE ANSWER : ? YOUR ANSWER : ?
The shell side pressure drop in a shell and tube heat exchanger is maximum for __________ baffle. Orifice Disk and ring Segmental Independent of the type of TRUE ANSWER : ? YOUR ANSWER : ?
Weep holes provided in the plates of a distillation column All of these Must be large enough (usually 1/4" to 5/8" dia) to prevent plugging but should not deliver excessive amount of fluid during operation Are normally located near the overflow weir so that any delivery of liquid during operation follows approximately the same path as the overflow fluid Facilitate draining out liquid from a tray when the unit is not in operation TRUE ANSWER : ? YOUR ANSWER : ?
For identical situation, condensing film coefficient in case of a horizontal condenser is almost __________ the value expected in case of vertical condenser. Five times Half Thrice Twice TRUE ANSWER : ? YOUR ANSWER : ?
Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder Both A & B Is easy to fabricate Neither A nor B Has greater structural strength TRUE ANSWER : ? YOUR ANSWER : ?
The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than 3 1 2 3.5 TRUE ANSWER : ? YOUR ANSWER : ?
A rivetted joint does not fail by __________ of rivets. None of these Shearing Tearing of the plate across a row Tearing TRUE ANSWER : ? YOUR ANSWER : ?
Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support. Guy wire Lug Skirt Saddle TRUE ANSWER : ? YOUR ANSWER : ?
Frame thickness in the plate and frame filter press is normally in the range of __________ inches. 1 to 5 1 to 12 0.25 to 4 0.25 to 8 TRUE ANSWER : ? YOUR ANSWER : ?