Hazards associated with the relief valve leakage for extremely hazardous material storage can be taken care of by providing Rupture diaphragm Dikes None of these Surge chamber TRUE ANSWER : ? YOUR ANSWER : ?
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 HG = 1.004G0.37 HG = 0.0176G0.37 1.004G0.8 0.0176G1.37 TRUE ANSWER : ? YOUR ANSWER : ?
Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs. Fixed Flat Floating Conical TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following material is seldom used for pressure vessel construction? Rimmed still Mild steel Semi-killed steel Killed steel TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from 6 to 12 2 to 3 3 to 5 4 to 8 TRUE ANSWER : ? YOUR ANSWER : ?
In perforated plate towers, the Total hole area may be around 6 to 15% of tower cross-sectional area Pressure drop is less compared is similar bubble cap towers All of these Hole sizes may be around 1/8" or 3/16" TRUE ANSWER : ? YOUR ANSWER : ?
Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor. 30-35 43961 35-40 15-20 TRUE ANSWER : ? YOUR ANSWER : ?
To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of (1.2)5/3 (1.2)2/3 (1.2)3/2 (1.2)3/5 TRUE ANSWER : ? YOUR ANSWER : ?
What is the slope of the operating line in the rectifying section of a distillation coloumn? > 1 ∞ TRUE ANSWER : ? YOUR ANSWER : ?
Width and depth of grooves in the tube sheet holes normally are __________ inch respectively. 1/64 and 1/8 1/2 and 8 1/2 and 5 1/8 and 1/64 TRUE ANSWER : ? YOUR ANSWER : ?