A. Expansion joint
B. Changes in its direction
C. Change in the shape of pipeline
D. All A., B. and C.
A. 0.3 to 0.8
B. 1.25 to 3.125
C. 3.5 to 7.0
D. 8 to12
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. 10
B. 50
C. 100
D. 200
A. Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch
B. Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto
15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than
tube diameter
C. O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres
D. All A., B. & C.
A. CO2
B. SO2
C. NH3
D. None of these
A. Relieving excess pressure
B. Creating turbulence
C. Enhancing mixing rate
D. Avoiding vortex formation