Discussion
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- Question
The approximate liquid depth in an agitation tank is equal to (where, d = tank diameter)
Options- A. 0.5 d
- B. 0.75 d
- C. d
- D. 2 d
- Correct Answer
- d
- 1. The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called
Options- A. downcomer liquid seal
- B. static submergence
- C. skirt clearance
- D. none of these Discuss
- 2. __________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).
Options- A. Hemispherical
- B. Dished
- C. Ellipsoidal
- D. Conical Discuss
- 3. Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.
Options- A. 10
- B. 50
- C. 100
- D. 150 Discuss
- 4. The ratio of linear stress to linear strain is termed as the
Options- A. modulus of elasticity
- B. modulus of rigidity
- C. bulk modulus
- D. none of these Discuss
- 5. Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as
Options- A. d = 1.1 t
- B. d = 1.6 t
- C. d = 1.5 t
- D. 3t Discuss
- 6. For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times.
Options- A. about 9
- B. considerably more than 9
- C. considerably less than 9
- D. about 3 Discuss
- 7. A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law.
Options- A. positive
- B. negative
- C. no
- D. none of these Discuss
- 8. Baffle width is normally taken as __________ times the tank diameter.
Options- A. 0.1-0.12
- B. 0.4-0.5
- C. 0.45-0.6
- D. 0.2-0.45 Discuss
- 9. The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)
Options- A. 4 A/P
- B. A/P
- C. 4 P/A
- D. A Discuss
- 10. Larger depth of liquid on the trays of a distillation column
Options- A. leads to high tray efficiency.
- B. results in higher pressure drop per tray.
- C. both (a) & (b).
- D. neither (a) or (b). Discuss
Process Equipment and Plant Design problems
Search Results
Correct Answer: static submergence
Correct Answer: Ellipsoidal
Correct Answer: 100
Correct Answer: modulus of elasticity
Correct Answer: d = 1.6 t
Correct Answer: considerably more than 9
Correct Answer: positive
Correct Answer: 0.1-0.12
Correct Answer: 4 A/P
Correct Answer: both (a) & (b).
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