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Chemical Engineering - Process Equipment and Plant Design

Exercise : Process Equipment and Plant Design - Section 3
36.
Accidents in chemical plants are mostly due to
inadequate equipment design.
faulty operating procedures.
improper layout of the equipments.
failure of equipments.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
For identical operating conditions, the pressure drop over __________ tray is the highest out of the following.
sieve
valve
counterflow
bubble cap
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
A perforated plate has holes of diameter dn arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by
(ph - dh)/ph
(ph - dh . dt/2)/ph
(ph - dt)/ph
(ph - dh)/dh
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
__________ is the determining factor for the number of bubble caps to be used per tray.
Permissible slot velocity
Tray diameter
Liquid load
Vapor load
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
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.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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