- (A) 1/5th
- (B) 1/15th
- (C) 1/30th
- (D) 1/50th
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- (A) 0.25 to 4
- (B) 0.25 to 8
- (C) 1 to 5
- (D) 1 to 12
- (A) Not less than one-fourth of the tube diameter or 3/16″
- (B) More than the tube diameter
- (C) Equal to the tube diameter
- (D) More in case of triangular pitch as compared to the square pitch tube layout
- (A) 0.6-0.8 times
- (B) Equal to
- (C) Twice
- (D) 2 ft irrespective of (for column > 3 ft diameter)
- (A) 2-3
- (B) 18-22
- (C) 6-8
- (D) 12-15
- (A) Ultimate tensile strength (or yield point) of the material and operating temperature
- (B) Operating pressure and welding/joint efficiency
- (C) Diameter of the vessel
- (D) All
- (A) Rivets
- (B) A hold down bar
- (C) Bolts
- (D) Both
- (A) Chain
- (B) Diamond
- (C) Zig-zag
- (D) None of these
- (A) 1
- (B) < 1
- (C) > 1
- (D) Equal to the order of reaction
- (A) In a flanged and standard dished head, the crown radius is ≤ shell outside diameter
- (B) In a flanged and shallow dished head, the crown radius is > shell outside diameter
- (C) Flat head covers are most suitable for larger vessels operating at very high pressure
- (D) Flanged only head is a type of flat head in which gradual change in the shape at the centre results in reduced local stresses
