Discussion
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- Question
Pick out the wrong statement.
Options- A. An air cooled finned pipe is diagram-matically represented by
- B. A heat exchanger is diagrammatically represented by
- C. A 90° welded elbow is diagrammatically represented by
- D. A pipe still heater is diagrammatically represented by
- Correct Answer
- A 90° welded elbow is diagrammatically represented by
- 1. The force due to wind load acting on a tall vessel depends upon its
Options- A. shape.
- B. outside diameter.
- C. height.
- D. all (a), (b) & (c). Discuss
- 2. Liquid gradient over the tray results due to the
Options- A. resistance offered to flow of liquids by caps & risers and the flow of gas.
- B. low gas velocity.
- C. large plate spacing.
- D. large reflux ratio. Discuss
- 3. What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers?
Options- A. 6.5 cms
- B. 6.5 mm
- C. Equal to tube I.D
- D. Equal to tube O.D Discuss
- 4. In which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube?
Options- A. Long tube vertical evaporator
- B. Short tube vertical evaporator
- C. Horizontal tube evaporator
- D. None of these Discuss
- 5. Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger?
Options- A. 75% cut segmental baffle.
- B. 25% cut segmental baffle.
- C. Orifice baffle.
- D. Disk and doughnut baffle. Discuss
- 6. The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than
Options- A. 1
- B. 2
- C. 3
- D. 3.5 Discuss
- 7. A cylinderical pressure vessel of volume 6 ?m3 has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm2 and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to
Options- A. 5 mm
- B. 6 mm
- C. 8 mm
- D. 10 mm Discuss
- 8. Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs.
Options- A. conical
- B. flat
- C. floating
- D. fixed Discuss
- 9. Lug support is meant for supporting __________ vessels.
Options- A. large horizontal cylindrical
- B. tall but empty
- C. small
- D. thick walled tall Discuss
- 10. Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid
Options- A. containing suspended solids flows at low velocity.
- B. containing suspended solids flows at high velocity.
- C. is highly viscous.
- D. is of high specific gravity. Discuss
Process Equipment and Plant Design problems
Search Results
Correct Answer: all (a), (b) & (c).
Correct Answer: resistance offered to flow of liquids by caps & risers and the flow of gas.
Correct Answer: 6.5 mm
Correct Answer: Horizontal tube evaporator
Correct Answer: 25% cut segmental baffle.
Correct Answer: 1
Correct Answer: 10 mm
Correct Answer: floating
Correct Answer: small
Correct Answer: containing suspended solids flows at low velocity.
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