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Process Equipment and Plant Design

Process Equipment and Plant Design
Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor.

30-35
35-40
43961
15-20

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Process Equipment and Plant Design
In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area)

Sa = 1.5 Aa
Aa = Sa
1.2 Aa = 1.2 Sa
Aa = 1.5 Sa

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Process Equipment and Plant Design
Any shell opening greater than 5 cms for a storage tank must be reinforced for reason of

None of these
Preventing the local overstressing of the shell around the opening
Reduction of discontinuity in shape at the junction
Making the joint leak proof

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Process Equipment and Plant Design
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.

30 to 40
10 to 20
40 to 50
1 to 5

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Process Equipment and Plant Design
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

McCabe-Thiele's method
Ponchon-Savarit method
None of these
Sorel-Lewis method

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Process Equipment and Plant Design
In packed towers provided with saddle packing, liquid redistributors are positioned at every __________ times column diameter or 6 metres whichever is less.

44119
20-25
43959
43864

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