3861. Which of the following undergoes fission reaction easily ?
U-235
U-238
Th-232
none of these
✅ The correct answer is option A.
Chemical Engineering
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3862. 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
increases
decreases
remains same
may increase or decrease depending upon the solubility of the gas in the liquid
✅ The correct answer is option C.
3863. Nuclear fuel complex, Hyderabad is engaged in the job of
manufacture of nuclear fuel elements/assemblies .
processing of uranium ore.
treatment of spent fuel.
none of these.
✅ The correct answer is option A.
3864. Saddle supports are used for supporting __________ vessels.
horizontal cylinderical
tall vertical
thick walled vertical
thick spherical
✅ The correct answer is option A.
3865. Which of the following radiations is the least penetrating ?
α-rays
β-rays
γ-rays
X-rays
✅ The correct answer is option A.
3866. 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.
molal flow rate of vapour
vapour molecular weight
pressure and temperature
all (a), (b) and (c)
✅ The correct answer is option D.
3867. An electron has a mass that is approximately __________ that of the proton.
1836 (approximately)
1/1836 (approximately)
1
∞
✅ The correct answer is option B.
3868. Pick out the wrong statement about distillation operation
Distillation under vacuum is a substitute for steam distillation.
In differential (simple) distillation, the vapour is removed as soon as it is formed without appreciable condensation.
In flash (equilibrium) distillation, a definite fraction of liquid is vaporised in such a way that the evolved vapour & residual liquids are in equilibrium with each other.
Flash distillation, differential distillation & steam distillation are all continuous distillation processes.
✅ The correct answer is option D.
3869. An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by
an increase in liquid viscosity.
an increase in relatived volatility for rectification columns.
decrease in gas solubility for absorbers.
all (a), (b) and (c).
✅ The correct answer is option D.
3870. Solar energy results from __________ reaction.
fission
combustion
thermonuclear
none of these
✅ The correct answer is option C.