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- Question
Shell side heat transfer co-efficient in case of square pitch as compared to the triangular pitch under similar condition of fluid flow and tube size is
Options- A. more
- B. same
- C. less
- D. twice
- Correct Answer
- less
- 1. The important dimensional group involved in the power requirement calculation in mixing operation is the __________ number.
Options- A. Reynold's
- B. Froude
- C. both (a) & (b)
- D. neither (a) nor (b) Discuss
- 2. Which of the following is a batch sedimentation equipment?
Options- A. Dust catcher
- B. Filter thickener
- C. Dry cyclone separator
- D. Rotary sprayer scrubber. Discuss
- 3. Choke crushing (in case of a Jaw crusher) compared to free crushing
Options- A. results in increased capacity.
- B. consumes less power.
- C. consumes more power.
- D. both (a) and (c). Discuss
- 4. Hydrogen differs from deuterium in __________ properties.
Options- A. radioactive
- B. physical
- C. chemical
- D. all (a), (b) and (c) Discuss
- 5. Separation of isotopes is generally done using a/an __________ centrifuge.
Options- A. ultra
- B. disk-bowl
- C. both (a) & (b)
- D. neither (a) nor (b) Discuss
- 6. Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.
Options- A. 50
- B. 100
- C. 150
- D. 250 Discuss
- 7. Low temperature carbonisation
Options- A. is mainly for producing the smokeless domestic coke.
- B. is meant for the production of 'metallurgical coke'.
- C. produces higher quantity of gas than high temperature carbonisation.
- D. produces less quantity of tar than high temperature carbonisation. Discuss
- 8. The osmotic pressure of a solution is directly proportional to the
Options- A. lowering of vapor pressure.
- B. molecular concentration of the solute.
- C. absolute temperature of a given concentration.
- D. all (a), (b) and (c). Discuss
- 9. The vapor pressure of a substance, at its melting point, is __________ in the solid state as compared to that in the liquid state.
Options- A. less
- B. more
- C. same
- D. either (a) or (b); depends on the nature of the substance Discuss
- 10. Two solutions A1 and A2 have pH value of 2 and 6 respectively. It implies that the solution
Options- A. A2 is more alkaline than solution A2
- B. A1 is highly acidic.
- C. A1 is very slightly acidic.
- D. both (a) &(c). Discuss
More questions
Correct Answer: both (a) & (b)
Correct Answer: Filter thickener
Correct Answer: consumes more power.
Correct Answer: physical
Correct Answer: ultra
Correct Answer: 150
Correct Answer: is mainly for producing the smokeless domestic coke.
Correct Answer: all (a), (b) and (c).
Correct Answer: same
Correct Answer: both (a) &(c).
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