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- Question
Filtration rate is affected by the
Options- A. pressure drop across the cake & filter medium.
- B. cake & filter medium resistance.
- C. area of filtering surface & the viscosity of filtrate.
- D. all (a), (b) and (c).
- Correct Answer
- all (a), (b) and (c).
- 1. In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)
Options- A.
- B.
- C.
- D. ?d/4P2 Discuss
- 2. Frame thickness in the plate and frame filter press is normally in the range of __________ inches.
Options- A. 0.25 to 4
- B. 0.25 to 8
- C. 1 to 5
- D. 1 to 12 Discuss
- 3. The ratio of lateral strain to linear strain is termed as the
Options- A. Poisson's ratio
- B. bulk modulus
- C. modulus of elasticity
- D. shear modulus Discuss
- 4. Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.
Options- A. 6% of I.D.
- B. 3 times the thickness
- C. either (a) or (b), whichever is larger
- D. either (a) or (b), whichever is smaller Discuss
- 5. Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always
Options- A. less than arithmetic mean value.
- B. more than arithmetic mean value.
- C. more than geometric mean value.
- D. both(b) & (c). Discuss
- 6. __________ heat exchanger is also known as 'hair pin type' exchanger,
Options- A. Double pipe
- B. Finned
- C. Plate type
- D. Regenerative Discuss
- 7. Optimum economic pipe diameter for fluid flow is determined by the
Options- A. viscosity of the fluid.
- B. density of the fluid.
- C. total cost considerations (pumping cost plus fixed cost of the pipe).
- D. none of these. Discuss
- 8. Pick out the wrong statement pertaining to shell and tube heat exchanger.
Options- A. Clearance between shell & baffles and between tube & baffles should be minimum to avoid by-passing of the fluid, but it should be enough to permit the removal of tube bundle.
- B. Baffles are supported independently of the tubes by tie rods and positioned by spacers.
- C. Tie rods are fixed at one end in the tube sheet by making blind holes and the minimum number of tie rods is 4 with at least 10 mm diameter.
- D. Bracket supports are used for horizontal shell, while saddle support is used for vertical shell. Discuss
- 9. Tube height in a calendria type evaporator is normally less than __________ metres.
Options- A. 1
- B. 2
- C. 3.5
- D. 5.5 Discuss
- 10. A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is
Options- A. bending
- B. deformation
- C. shear
- D. elongation Discuss
Process Equipment and Plant Design problems
Search Results
Correct Answer:
Correct Answer: 0.25 to 8
Correct Answer: Poisson's ratio
Correct Answer: either (a) or (b), whichever is larger
Correct Answer: less than arithmetic mean value.
Correct Answer: Double pipe
Correct Answer: total cost considerations (pumping cost plus fixed cost of the pipe).
Correct Answer: Bracket supports are used for horizontal shell, while saddle support is used for vertical shell.
Correct Answer: 2
Correct Answer: bending
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