Process Equipment And Plant Design MCQs | Page - 2

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R

Ram Sharma • 193.86K Points
Coach

Q. In the design of a shell and tube heat exchanger, the corrosion allowance

(A) Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc
(B) For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm
(C) For internal cover and tube sheet is provided on both the sides
(D) All of the above
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R

Ram Sharma • 193.86K Points
Coach

Q. Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs.

(A) Conical
(B) Flat
(C) Floating
(D) Fixed
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R

Ram Sharma • 193.86K Points
Coach

Q. In a vertical short tube evaporator (Calendria type), the

(A) Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used
(B) Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube
(C) Liquor is inside the tube while the steam is outside the tube
(D) All of the above
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R

Ram Sharma • 193.86K Points
Coach

Q. In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a

(A) Clearance of 25-75 mm
(B) Cap pitch of 1.3-2 times the cap diameter
(C) Either A or B
(D) Neither A nor B
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R

Ram Sharma • 193.86K Points
Coach

Q. Rivets are generally specified by the

(A) Head diameter
(B) Shank diameter
(C) Overall length
(D) None of these
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R

Ram Sharma • 193.86K Points
Coach

Q. When one of the fluids is highly corrosive and has fouling tendency, it should

(A) Preferably flow inside the tube for its easier internal cleaning
(B) Perferably flow outside the tube
(C) Flow at a very slow velocity
(D) Flow outside the tube, when the flow is counter-current and inside the tube when the flow is co-current
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R

Ram Sharma • 193.86K Points
Coach

Q. Floating head heat exchangers are used for the

(A) Heat transfer between corrosive fluids
(B) Cases where temperature difference between the shell and the tubes is more (>50°C)
(C) Co-current heat transfer systems
(D) Counter-current heat transfer systems
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R

Ram Sharma • 193.86K Points
Coach

Q. Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is

(A) More
(B) Less
(C) Same
(D) More or less depending upon the pressure & temperature inside the vessel and the nature of the fluid contained therein
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R

Ram Sharma • 193.86K Points
Coach

Q. Hazards associated with the relief valve leakage for extremely hazardous material storage can be taken care of by providing

(A) Rupture diaphragm
(B) Dikes
(C) Surge chamber
(D) None of these
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R

Ram Sharma • 193.86K Points
Coach

Q. In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is

(A) Called tube pitch
(B) Called tube clearance
(C) Always less than the diameter of the tube
(D) None of these
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