A binary liquid azeotropic mixture has boiling point higher than either of the components, when it shows __________ deviation from Raoult's Law. None of these Positive No Negative TRUE ANSWER : ? YOUR ANSWER : ?
Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the Number of equilibrium stages required is likely to be very small Feed is not at its bubble point Relative volatility is close to one (e.g., separation of close boiling isomers) Number of equilibrium stages in only stripping section is to be calculated TRUE ANSWER : ? YOUR ANSWER : ?
The retention time of material in a rotary dryer depends upon its All of these Slope & length Flights arrangement Rpm TRUE ANSWER : ? YOUR ANSWER : ?
In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is None of these Called tube clearance Always less than the diameter of the tube Called tube pitch TRUE ANSWER : ? YOUR ANSWER : ?
Thin spherical shells subjected to internal pressure, develop __________ stresses. Circumferential Neither A nor B Both A & B Radial TRUE ANSWER : ? YOUR ANSWER : ?
Vertical vessels are not supported by Skirts Columns Brackets Saddles TRUE ANSWER : ? YOUR ANSWER : ?
Compensation against openings in process vessels for giving inlet and outlet connections, for providing sight glasses and manholes etc. is provided for strength and rigidity. The most efficient type of compensation is of __________ type. Ring plate Nozzle or rim Flared out Fluid in TRUE ANSWER : ? YOUR ANSWER : ?
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise. 600 300 1500 1000 TRUE ANSWER : ? YOUR ANSWER : ?
A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap. 95 38 76 19 TRUE ANSWER : ? YOUR ANSWER : ?
In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio. 1.1 to 1.5 2.2 to 2.6 1.6 to 2 2.7 to 3 TRUE ANSWER : ? YOUR ANSWER : ?