fixed charges initially
running cost of cooling water for condenser
vapour & liquid load both
running cost of steam for reboiler
✅ The correct answer is option A.
Process Equipment and Plant Design MCQs
72. Hoop (circumferential) stress induced in a thin walled ‘Horton Sphere’ used for the storage of liquid ammonia under pressure is
✅ The correct answer is option A.
73. A stuffing box is used for
absorbing the contraction/expansion of pipeline due to temperature changes.
prevention of fluid leakage around moving parts.
facilitating smooth opening and closing of a valve.
reducing the resistance of fluid flow.
✅ The correct answer is option B.
74. __________ strain is measured using a ‘strain rosetter’.
Volumetric
Shear
Linear
none of these
✅ The correct answer is option C.
75. Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor.
5-Oct
15-20
30-35
35-40
✅ The correct answer is option B.
76. Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as
Δp = G
Δp = G0.5
Δp = G2
✅ The correct answer is option C.
77. Slope of countercurrent flow rotary drier is in the range of __________ meter/metre.
0 to 0.08
0 to 0.8
0 to 1.5
0 to 2.2
✅ The correct answer is option A.
79. 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
✅ The correct answer is option C.
80. Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about __________ percent of the total thickness.
1 to 5
10 to 20
30 to 40
40 to 50
✅ The correct answer is option B.