A. A vapor phase reactor
B. Pot type reactor
C. A liquid phase reactor
D. A liquid phase catalytic reactor
Related Mcqs:
- Vertical condenser is advantageous to the horizontal condenser from operation point of view, when________________?
A. Hydrostatic head is required for refluxing the condensate
B. Only the function of condensation is to be carried out
C. Sub-cooling of condensate is desired
D. Both the functions of condensation & sub cooling are carried out in a single unit - The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the_________________?
A. Equal sized reactors are the best
B. Smaller reactor should come first
C. Larger reactor should come first
D. None of these - Which of the following is the best tube material from thermal conductivity point of view alone ?
A. Aluminium
B. Stainless steel
C. Copper
D. Carbon steel - For a cylindrical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness ?
A. Hemispherical
B. Ellipsoidal (2 : 1)
C. Conical
D. Flat plate - In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the_______________?
A. Liquid gradient on the tray
B. Lower skirt clearance
C. Lower static submergence
D. Small downcomer liquid seal - Normally, the length to diameter ratio of rotary dryers varies from 4 to 10 and for its economic operation; the number of transfer units (NTU) for such dryers varies from ?
A. 1.5-2.5
B. 3.5-5.5
C. 7.5-10.0
D. 10-15 - The most common standard size of bubble caps used in industrial operation is___________________?
A. 1″ dia cap with 0.5″ dia riser
B. 6″ dia cap with 4″ dia riser
C. 8″ dia cap with 1″ dia riser
D. 4″ dia cap with 8″ dia riser - The slope of the feed line in distillation operation is given by (where, q = fraction of the feed stream that is liquid ?
A. -q
B. -q/(1-q)
C. -q/(q-1)
D. None of these - In actual operation of a bubble cap distillation tower, the ______________ at the bottom of the tower is more than that at the top of the tower?
A. Molal flow rate of vapour
B. Vapour molecular weight
C. Pressure and temperature
D. All A., B. and C. - For identical operating conditions, the pressure drop over _______________ tray is the highest out of the following?
A. Sieve
B. Valve
C. Counter flow
D. Bubble cap
