Q. A pressure vessel is said to be made of 'thick' shell, if the ratio of its diameter to wall thickness is

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Q. Rate of filtrate delivery is inversely proportional to the

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Q. Tube side heat transfer co-efficient for turbulent flow of liquid through tubes is proportional to

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Q. Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.

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Q. The dust collection efficiency of electrostatic precipitator increases with increase in the

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Q. The retention time of material in a rotary dryer depends upon its

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Q. In actual operation of a bubble cap distillation tower, the __________ at the bottom of the tower is more than that at the top of the tower.

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Q. Rotary driers are most economically designed for the number of heat transfer units (HTU) from

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Q. The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

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Q. A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

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Q. For storing hazardous chemicals in large storage tanks, the minimum safe distance between the two tanks should range between __________ times the tank diameter.

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Q. Which of the following factors determine the amount of entrainment in a distillation column ?

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Q. The absorption factor is defined as (where, S₁ = slope of the equilibrium curve, S₂ = slope of the operating line)

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Q. In shell and tube heat exchangers, straight tie rods are used to

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Q. A binary liquid azeotropic mixture has boiling point higher than either of the components, when it shows __________ deviation from Raoult's Law.

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Q. The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times the design pressure.

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Q. Flanges are connected to pipes by

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Q. The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

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Q. Shortest distance between two tubes is

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Q. An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by

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