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  • Question
  • Liquid gradient over a tray can be minimised by


  • Options
  • A. providing a higher skirt clearance or a higher weir.
  • B. decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must flow.
  • C. using split flow, radial flow or cascade flow for column diameter large than 4 ft.
  • D. all (a), (b) and (c).

  • Correct Answer
  • all (a), (b) and (c). 


  • More questions

    • 1. Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is

    • Options
    • A. more
    • B. less
    • C. same
    • D. cither (a) or (b); depends upon the I.D. of the pipe
    • Discuss
    • 2. Aniline point of the diesel is a measure of its __________ content.

    • Options
    • A. aromatic
    • B. paraffin
    • C. olefin
    • D. naphthene
    • Discuss
    • 3. Dry powdery solid materials are transported by a __________ conveyor.

    • Options
    • A. belt
    • B. bucket
    • C. screw
    • D. none of these
    • Discuss
    • 4. Size reduction does not occur due to compression in case of

    • Options
    • A. rod mills
    • B. gyratory crushers
    • C. jaw crushers
    • D. smooth roll crushers
    • Discuss
    • 5. Thorium can be converted into U-233 in a __________ reactor.

    • Options
    • A. liquid metal cooled
    • B. fast breeder
    • C. thermal
    • D. swimming pool
    • Discuss
    • 6. A rivetted joint does not fail by __________ of rivets.

    • Options
    • A. tearing
    • B. shearing
    • C. tearing of the plate across a row
    • D. none of these
    • Discuss
    • 7. The synthetic fibres produced from __________ are known as rayon.

    • Options
    • A. lignin
    • B. cellulose
    • C. polyamides
    • D. ethylene glycol
    • Discuss
    • 8. A/an __________ is used for changing the direction of a pipeline.

    • Options
    • A. elbow
    • B. union
    • C. flange
    • D. disc compensator
    • Discuss
    • 9. Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

    • Options
    • A. 1 - 2
    • B. 15 - 20
    • C. 50 - 60
    • D. 80 - 85
    • Discuss
    • 10. The ratio of volume of an atom to that of its nucleus is

    • Options
    • A. 1012
    • B. 10-12
    • C. 10-8
    • D. 108
    • Discuss


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