Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling. SO₂ NH₃ CO₂ None of these TRUE ANSWER : ? YOUR ANSWER : ?
Column support for the roof of cylindrical storage tank must be provided for Small diameter tall tanks Small diameter tanks Large diameter tanks All of these TRUE ANSWER : ? YOUR ANSWER : ?
A 'rupture disc' is provided in chemical equipments as an accessory meant for Relieving excess pressure Creating turbulence Enhancing mixing rate Avoiding vortex formation TRUE ANSWER : ? YOUR ANSWER : ?
Pressure drop per tray in the atmospheric distillation column is about __________ psi. 0.07 - 0.12 0.01 - 0.5 43833 0.5 - 1.0 TRUE ANSWER : ? YOUR ANSWER : ?
At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure May increase or decrease depending upon the solubility of the gas in the liquid Decreases Increases Remains same TRUE ANSWER : ? YOUR ANSWER : ?
Any shell opening greater than 5 cms for a storage tank must be reinforced for reason of Preventing the local overstressing of the shell around the opening None of these Reduction of discontinuity in shape at the junction Making the joint leak proof TRUE ANSWER : ? YOUR ANSWER : ?
Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs. Floating Flat Conical Fixed TRUE ANSWER : ? YOUR ANSWER : ?
Hole diameter of the seive trays in the distillation column ranges from __________ mm. 12.5 to 18.5 L to 3 3 to 12.5 4 to 8 TRUE ANSWER : ? YOUR ANSWER : ?
Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder Has greater structural strength Is easy to fabricate Both A & B Neither A nor B TRUE ANSWER : ? YOUR ANSWER : ?