Process Equipment and Plant Design MCQs with answers Page - 2

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A

Admin • 802.91K 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

A

Admin • 802.91K 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

A

Admin • 802.91K 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

A

Admin • 802.91K Points
Coach

Q. Rivets are generally specified by the

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

A

Admin • 802.91K 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

A

Admin • 802.91K 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

A

Admin • 802.91K 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

A

Admin • 802.91K 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

A

Admin • 802.91K 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

A

Admin • 802.91K Points
Coach

Q. The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the __________ stress.

  • (A) Yield point
  • (B) Breaking
  • (C) Ultimate
  • (D) None of these

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