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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. Which is not a natural insulating material?
Options- A. Diatomaceous earth/kieselgur
- B. Asbestos
- C. Vermiculite
- D. None of these Discuss
- 2. The study on washability of coal is done by using the __________ technique.
Options- A. tabling
- B. elutriation
- C. heavy media separation
- D. none of these Discuss
- 3. Boiling point of a non-homogeneous mixture of immiscible liquids is __________ that of any one of its separate components.
Options- A. lower than
- B. higher than
- C. equal to
- D. either (a) or (b); depends on the liquids Discuss
- 4. Pick out the wrong statement.
Options- A. Multigrade lubricating oils have high viscosity index.
- B. Paraffinic oil has very high viscosity index.
- C. Naphthenic oil has very low viscosity index.
- D. High viscosity index means a large change in viscosity with change in temperature. Discuss
- 5. The percentage ratio of the partial pressure of the vapor to the vapor pressure of the liquid at the existing temperature is
Options- A. termed as relative saturation.
- B. not a function of the composition of gas mixture.
- C. called percentage saturation.
- D. not a function of the nature of vapor. Discuss
- 6. Adipic acid is an intermediate in the manufacture of
Options- A. perspex
- B. nylon-66
- C. polystyrene
- D. bakelite Discuss
- 7. The unit of specific cake resistance is
Options- A. gm/cm2
- B. cm/gm
- C. cm/gm2
- D. gm/gm Discuss
- 8. Monte catini process is used for the manufacture of
Options- A. nitric acid
- B. phosphoric acid
- C. urea
- D. calcium ammonium nitrate (CAN) Discuss
- 9. Death may occur, when SO2 concentration in atmospheric air exceeds __________ ppm.
Options- A. 20
- B. 100
- C. 400
- D. 200 Discuss
- 10. A solar cell converts the sunlight directly into __________ energy.
Options- A. thermal
- B. electrical
- C. mechanical
- D. chemical Discuss
More questions
Correct Answer: None of these
Correct Answer: heavy media separation
Correct Answer: lower than
Correct Answer: High viscosity index means a large change in viscosity with change in temperature.
Correct Answer: termed as relative saturation.
Correct Answer: nylon-66
Correct Answer: gm/cm2
Correct Answer: urea
Correct Answer: 400
Correct Answer: electrical
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