_____________________ tray arrangement is recommended for distillation column having diameter upto 4 ft ?

A. Nozzle or rim
B. Flared out
C. Fluid in
D. Ring plate

A. 1.5
B. 3
C. 5
D. 9

A. Tube dia is 3-6 cms, while tube length in 3-6 metres
B. Steam is fed to the shell, whereas the liquor is filled inside the tube
C. Liquor level is maintained at 1/3rd to 1/2 of the height of the tube
D. None of these

A. 1.3 to 2
B. 1.6 to 2
C. 2.5
D. 1.5 to 3

A. Downcomer liquid seal in case of a balanced tray design
B. Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm)
C. Skirt clearance for bubble caps
D. All A., B. and C.

A. 1
B. 0.85
C. 1.5
D. < 0.5