Discussion
Home ‣ Chemical Engineering ‣ Process Equipment and Plant Design Comments
- Question
Friction factor for turbulent flow in a new pipe is given by
Options- A.
- B.
- C. f = 0.22 NRe0.5
- D.
- Correct Answer
-
- 1. For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness?
Options- A. hemispherical
- B. ellipsoidal (2 : 1)
- C. conical
- D. flat plate Discuss
- 2. In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio.
Options- A. 1.1 to 1.5
- B. 1.6 to 2
- C. 2.2 to 2.6
- D. 2.7 to 3 Discuss
- 3. A pipe is generally made of circular cross-section, because a circular cross-section has the
Options- A. higher structural strength.
- B. lowest surface area requirement for a given volume.
- C. both (a) & (b).
- D. none of these. Discuss
- 4. Longitundinal stress induced in a thin walled cylindrical storage vessel is
Options- A.
- B.
- C.
- D.
Discuss
- 5. In condenser, the cooling water is passed in the tube side in a pass arrangement, because
Options- A. it reduces heat transfer area.
- B. more thinner tubes can be used.
- C. pressure drop is reduced.
- D. it makes condenser compact. Discuss
- 6. Of the pressure vessels, with same thickness but different diameters, which one withstands higher pressure?
Options- A. Larger dia vessel.
- B. Smaller dia vessel.
- C. Larger dia long vessel.
- D. Strength of the vessel is same irrespective of the diameter. Discuss
- 7. The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.
Options- A. 0.1-0.2
- B. 0.2-0.5
- C. 0.4-0.9
- D. 1.2-1.5 Discuss
- 8. In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of
Options- A. 1000
- B. 3000
- C. 5000
- D. 10000 Discuss
- 9. Skirt support is the most suitable for supporting __________ vessels.
Options- A. small horizontal
- B. large horizontal
- C. tall vertical
- D. thick walled Discuss
- 10. Baffles may be eliminated for
Options- A. low viscosity liquids (< 200 poise).
- B. high viscosity liquids (> 600 poise).
- C. large diameter tanks.
- D. none of these. Discuss
Process Equipment and Plant Design problems
Search Results
Correct Answer: ellipsoidal (2 : 1)
Correct Answer: 1.1 to 1.5
Correct Answer: both (a) & (b).
Correct Answer:
Correct Answer: it reduces heat transfer area.
Correct Answer: Smaller dia vessel.
Correct Answer: 0.4-0.9
Correct Answer: 10000
Correct Answer: tall vertical
Correct Answer: high viscosity liquids (> 600 poise).
Comments
There are no comments.More in Chemical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.