Category: Process Equipment and Plant Design

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 A., B. & C.

A. 0.2 D
B. 0.5 D
C. 0.66 D
D. 0.80 D

A. 6.5 cms
B. 6.5 mm
C. Equal to tube I.D
D. Equal to tube O.D

A. Preferably flow inside the tube for its easier internal cleaning
B. Preferably 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. Decreases
B. Increases
C. Remain unaffected
D. May increase or decrease depending upon whether the fluid is Newtonian or non-Newtonian

A. 0.1-0.2
B. 0.2-0.5
C. 0.4-0.9
D. 1.2-1.5

A. 1/8 and 1/64
B. 1/64 and 1/8
C. 1/2 and 8
D. 1/2 and 5

A. Sensible heat differences are small, because the temperature changes from tray to tray is small
B. Trouton’s rule is applicable
C. Liquid/vapor loading across the column remains constant
D. All A., B. and C.

A. 1.5 to 2
B. 2.5 to 5
C. 5 to 10
D. 10 to 15

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