41. for a Tee (used as elbow, entering branch) would be
less than that for Tee (used as elbow, entering run).
more than that for Tee (used as elbow, entering run).
around 90.
both (b) and (c).
✅ The correct answer is option D.
Process Equipment and Plant Design MCQs
42. Lap joints are preferred for plates having thickness __________ mm.
< 12.5
> 3
> 5
5-Oct
✅ The correct answer is option B.
43. Back-trapping in a distillation column results due to
low gas velocity.
high gas velocity.
excessive liquid gradient over the tray.
low reflux ratio.
✅ The correct answer is option C.
44. Tube side heat transfer co-efficient for turbulent flow of liquid through tubes is proportional to
G0.2
G0.5
G0.8
G1.5
✅ The correct answer is option C.
45. In a thin cylindrical shell, the hoop stress is __________ stress.
radial
circumferential tensile
compressive
longitudinal
✅ The correct answer is option B.
46. Thin spherical shells subjected to internal pressure, develop __________ stresses.
radial
circumferential
both (a) & (b)
neither (a) nor (b)
✅ The correct answer is option A.
47. Rate of filtrate delivery is inversely proportional to the
filtering area & the pressure difference driving force.
viscosity of filtrate.
cake & filter medium resistance.
both (a) and (b)
✅ The correct answer is option D.
48. Which of the following factors determine the amount of entrainment in a distillation column ?
Plate spacing.
Depth of liquid above the bubble cap slots.
Vapour velocity in the volume between the plates.
All (a), (b) and (c).
✅ The correct answer is option D.
49. In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.
less than
1.25-1.50 times
2.5 times
one-fourth of
✅ The correct answer is option B.