Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the Ultimate stress to breaking stress None of these Ultimate stress to working stress Working stress to ultimate stress TRUE ANSWER : ? YOUR ANSWER : ?
Lug support is meant for supporting __________ vessels. Tall but empty Large horizontal cylindrical Small Thick walled tall TRUE ANSWER : ? YOUR ANSWER : ?
Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter. 0.1 to 0.25 0.3 to 0.5 0.65 to 0.80 0.5 to 0.6 TRUE ANSWER : ? YOUR ANSWER : ?
Baffles may be eliminated for High viscosity liquids (> 600 poise) Low viscosity liquids (< 200 poise) Large diameter tanks None of these TRUE ANSWER : ? YOUR ANSWER : ?
__________ dished head is the strongest of all. Hemispherical Elliptical None of these Torispherical TRUE ANSWER : ? YOUR ANSWER : ?
Value of Peclet number = ∞, is the representative of Eddy diffusivity = 0 Laminar flow Plug flow Complete back mixing TRUE ANSWER : ? YOUR ANSWER : ?
In a multiple effect evaporator system having 'n' effects, the amount of water evaporated per unit surface area in approximately equal to __________ times that in a single effect. (1/n)th 1.5 nth 0.5 nth nth TRUE ANSWER : ? YOUR ANSWER : ?
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle? Segmental baffle Flat plate extending across the wall Helical type baffle Disk type baffle TRUE ANSWER : ? YOUR ANSWER : ?
Apex angle of conical heads used in the bottom heads of chemical process equipments is usually 45° 60° 30° 75° TRUE ANSWER : ? YOUR ANSWER : ?
What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers? 6.5 mm Equal to tube I.D Equal to tube O.D 6.5 cms TRUE ANSWER : ? YOUR ANSWER : ?