Discussion
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- Question
Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter )
Options- A. 0.2 D
- B. 0.5 D
- C. 0.66 D
- D. 0.80 D
- Correct Answer
- 0.2 D
- 1. Vertical vessels are not supported by
Options- A. brackets
- B. skirts
- C. columns
- D. saddles Discuss
- 2. The slope of operating line in the rectifying section of a distillation column is unity, if the reflux ratio is
Options- A. 0
- B. ?
- C. 1
- D. minimum Discuss
- 3. With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.
Options- A. fixed charges initially
- B. running cost of cooling water for condenser
- C. vapour & liquid load both
- D. running cost of steam for reboiler Discuss
- 4. LMTD correction factor is used in heat exchanger design for
Options- A. double pipe heat exchanger.
- B. multipass shell and tube heat exchanger.
- C. fouling fluids.
- D. counter flow of hot and cold fluids. Discuss
- 5. A head comprises of straight flange section, corner torus, section and central dished section. Crown radius and knuckle radius in a head is related respectively to the
Options- A. central dished section and corner torus section.
- B. corner torus section and central dished section.
- C. central dished section and straight flange section.
- D. straight flange section and corner torus section. Discuss
- 6. Thickness of the frame of a plate and frame filter as compared to that of plates is
Options- A. less
- B. same
- C. more
- D. either (a) or (b) Discuss
- 7. In a __________ rivetted joint, the rivets in the various rows are opposite to each other.
Options- A. zig-zag
- B. chain
- C. diamond
- D. none of these Discuss
- 8. Height equivalent to a theoretical plate (HETP) is the height of packing that will give the same separation as one theoretical plate in gas-liquid mass transfer operations like distillation, absorption/stripping and humidification/dehumidification. HETP which is experimentally determined, depends upon the
Options- A. flow rates of each fluid.
- B. type and size of packing.
- C. concentration of each fluid.
- D. all a, b & c. Discuss
- 9. Pick out the wrong statement:
Options- A. The tensile strength of a brittle material is less than its compressive strength.
- B. The compressive strength of a ductile materia] is less than its tensile strength.
- C. In a thick cylindrical shell, the hoop stress is maximum at the inner radius.
- D. The value of crushing load is more than that of buckling load for long colmns. Discuss
- 10. Speed of industrial paddle agitator ranges from __________ rpm.
Options- A. 1 to 5
- B. 20 to 100
- C. 500 to 750
- D. 1000 to 2000 Discuss
Process Equipment and Plant Design problems
Search Results
Correct Answer: saddles
Correct Answer: ?
Correct Answer: fixed charges initially
Correct Answer: multipass shell and tube heat exchanger.
Correct Answer: central dished section and corner torus section.
Correct Answer: more
Correct Answer: chain
Correct Answer: all a, b & c.
Correct Answer: The value of crushing load is more than that of buckling load for long colmns.
Correct Answer: 20 to 100
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