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- Question
Chrome magnesite bricks are
Options- A. acidic in nature.
- B. neutral in nature.
- C. having higher RUL than silica bricks.
- D. made by mixing 30% chromite and 70% periclase.
- Correct Answer
- having higher RUL than silica bricks.
- 1. Thermal conductivity of a conducting solid material depends upon its
Options- A. temperature
- B. porosity
- C. both (a) & (b)
- D. neither (a) nor (b) Discuss
- 2. __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate.
Options- A. Fibrous
- B. Leathery
- C. Rubbery
- D. Hard Discuss
- 3. 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
- 4. 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
- 5. 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
- 6. Raoult's law applies to the
Options- A. all liquid solutions
- B. non-ideal solution only.
- C. non-volatile solute.
- D. solvents. Discuss
- 7. 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
- 8. 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
- 9. 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
- 10. Mixing mechanism employed in a pan mixer is by
Options- A. mulling
- B. kneading
- C. dispersion
- D. none of these Discuss
More questions
Correct Answer: both (a) & (b)
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
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