Related Questions

In perforated plate towers, the
A Hole sizes may be around $${\frac{1}{8}^{''}}$$ or $${\frac{3}{{16}}^{''}}$$
B Total hole area may be around 6 to 15% of tower cross-sectional area
C Pressure drop is less compared is similar bubble cap towers
D All of the above
Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the
A Packing may be crushed due to thermal expansion/contraction of the components of the equipments
B Pressure drop in the equipment will be very high
C Viscosity variation of the fluids may cause channeling/flooding
D None of these
The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives
A Low pressure drop and high hold up
B High pressure drop and low hold up
C Low pressure drop and low hold up
D High pressure drop and high hold up
Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when
A Extracting solvent is cheaply & abundantly available
B One of the liquid components is heat sensitive
C Viscosity of liquid components is very high
D One of the liquid components has very high affinity towards the solvent
Selectivity of the solvent used in solvent extraction should be
A 1
B > 1
C 0
The solvent used in liquid extraction should not have high latent heat of vaporisation, because
A The pressure drop and hence the pumping cost will be very high
B It cannot be recovered by distillation
C Its recovery cost by distillation may be prohibitatively high
D It will decompose while recovering by distillation
Even though bubble cap towers are very effective for humidification operation, they are not used commonly in industries, because of the
A High evaporation losses of water
B High pressure drop of the gas
C Difficulty in its fabrication
D None of these
A. __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end.
A Compartment
B Tube
C Rod
D Pebble
The gypsys are a tribe of strange people. They do not have any fixed home but wander about from place to place and live in tents. they were originally natives of India. But as they reached England from Egypt ,the English took them from Egyptians. this is why they came to be called gypsys. they were beloved to possess strange powers. they could tell your fortune by reading the palm of your hand. it was thought they stole little children to train them in their way of life. whenever a child got lost it was thought that it has been carried away by gypsys so they were arrested and sent for trial. but this attitude towards the Gypsy has gradually changed.The gypsies are people who ---
A have a settled way of life
B came originally from Egypt to England
C are always on the move
D steal children to train them in the way of life
For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as
A 2E
B 3E
C 4E
D 6E

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