Discussion
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- Question
The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is
Options- A. 0.25
- B. 0.50
- C. 0.75
- D. 1.25
- Correct Answer
- 0.25
- 1. The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from
Options- A. 2 to 3
- B. 3 to 5
- C. 4 to 8
- D. 6 to 12 Discuss
- 2. The units of Young's modulus of elasticity and __________ are the same.
Options- A. strain
- B. stress
- C. modular ratio
- D. none of these Discuss
- 3. Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to
Options- A. 5 cms
- B. 40% of the I.D. of the shell
- C. 25 cms
- D. I.D. of the shell Discuss
- 4. The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times.the design pressure.
Options- A. 1.5 to 2
- B. 3 to 4
- C. 4 to 5
- D. >5 Discuss
- 5. __________ liquor is best handled in a long tube vertical evaporator.
Options- A. Foamy
- B. Scaling
- C. Viscous
- D. Salting Discuss
- 6. A/an __________ is used for changing the direction of a pipeline.
Options- A. elbow
- B. union
- C. flange
- D. disc compensator Discuss
- 7. Value of Peclet number = 0, is the representative of
Options- A. laminar flow.
- B. complete back mixing.
- C. plug flow.
- D. eddy diffusivity = 0. Discuss
- 8. Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around
Options- A. 2.5"
- B. 0.5"
- C. 5"
- D. 50% of the plate spacing Discuss
- 9. For turbulent flow (NRe > 2100) of low viscosity fluid (? > 20cp) in steel pipes, the optimum inside pipe diameter is given by(where, Q = fluid flow rate, ft3/sec.? = fluid density, lb/ft3 ? = fluid viscosity, centipoise Di = optimum inside pipe diameter, inches)
Options- A. Di, opt = 3.9 Q0.45 ?0.13
- B. Di, opt = 3.9 Q0.45 . ?0.95
- C. Di, opt = 4.7 Q0.36 . ?3.2?0.13
- D. Di, opt = 3 Q0.36 . ?0.88 Discuss
- 10. To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to
Options- A. 0.5 d
- B. d
- C. 1.5 d
- D. 2.5 d Discuss
Process Equipment and Plant Design problems
Search Results
Correct Answer: 4 to 8
Correct Answer: stress
Correct Answer: 5 cms
Correct Answer: 1.5 to 2
Correct Answer: Foamy
Correct Answer: elbow
Correct Answer: complete back mixing.
Correct Answer: 0.5"
Correct Answer: Di, opt = 3.9 Q0.45 ?0.13
Correct Answer: 1.5 d
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