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- Question
Size range of polymer molecules varies from __________ metre.
Options- A. 10-2 to 10-5
- B. 10-4 to 10-7
- C. 10-1 to 10-2
- D. 10-8 to 10-10
- Correct Answer
- 10-2 to 10-5
- 1. __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate.
Options- A. Fibrous
- B. Leathery
- C. Rubbery
- D. Hard Discuss
- 2. Power loss in an orificemeter is __________ that in a venturimeter.
Options- A. less than
- B. same as
- C. more than
- D. data insufficient, cannot be predicted Discuss
- 3. The proper arrangement of the petroleum fractions in order of their boiling points is
Options- A. lubricating oil > diesel > petrol > LPG
- B. lubricating oil > petrol > diesel > LPG
- C. petrol > lubricating oil > diesel > LPG
- D. petrol > diesel > LPG > lubricating oil Discuss
- 4. The function of a transducer is to
Options- A. modify the input signal.
- B. amplify the input signal.
- C. convert the primary signal into a more useful quantity, usually an electric impulse.
- D. codify/decodify the input signal. Discuss
- 5. Raoult's law applies to the
Options- A. all liquid solutions
- B. non-ideal solution only.
- C. non-volatile solute.
- D. solvents. Discuss
- 6. Which of the following quantities need not be fixed before starting the design of a co-current absorber?
Options- A. Heat gain or loss
- B. Flow rate of entering liquid
- C. Flow rate of gas
- D. None of these Discuss
- 7. An example of a periodic furnace is the
Options- A. blast furnace stoves
- B. blast furnace
- C. coke oven heating chamber
- D. rotary kilns Discuss
- 8. Pick out the wrong statement.
Options- A. Gape is the greatest distance between the crushing surfaces or the jaws.
- B. The angle of nip (2?) is the angle between roll faces at the level where they will j ust take hold of a particle and draw it in the crushing zone.
- C. Crushing efficiency is the ratio of the energy absorbed by the solid to the surfaces energy created by crushing.
- D. Reduction ratio is the ratio of the maximum size of the particles in the feed to that in the product. Discuss
- 9. Mixing mechanism employed in a pan mixer is by
Options- A. mulling
- B. kneading
- C. dispersion
- D. none of these Discuss
- 10. Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C.
Options- A. 1520
- B. 1630
- C. 1670
- D. 1730 Discuss
More questions
Correct Answer: Leathery
Correct Answer: more than
Correct Answer: lubricating oil > diesel > petrol > LPG
Correct Answer: convert the primary signal into a more useful quantity, usually an electric impulse.
Correct Answer: solvents.
Correct Answer: Flow rate of entering liquid
Correct Answer: blast furnace stoves
Correct Answer: Crushing efficiency is the ratio of the energy absorbed by the solid to the surfaces energy created by crushing.
Correct Answer: mulling
Correct Answer: 1730
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