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- Question
Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is
Options- A. inversely proportional to viscosity of gas.
- B. proportional to the viscosity & density of the gas.
- C. proportional to the pressure of the gas.
- D. both (b) and (c).
- Correct Answer
- both (b) and (c).
- 1. The equivalent diameter for pressure drop is __________ that for heat transfer.
Options- A. smaller than
- B. greater than
- C. equal to
- D. not related with Discuss
- 2. Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
Options- A. organic peroxides
- B. sulphuric acid
- C. hydroflouric acid
- D. none of these Discuss
- 3. LPG stands for
Options- A. liquid petroleum gas
- B. liquified petrol gas
- C. liquid petrol gas
- D. liquefied petroleum gas Discuss
- 4. With increase in temperature, the surface tension of water
Options- A. increases
- B. decreases
- C. remains constant
- D. increases linearly Discuss
- 5. Fireclay bricks is not used for lining the
Options- A. cupola.
- B. gas producer.
- C. bottom of hot metal mixer.
- D. roof of open hearth furnace. Discuss
- 6. Phenol formaldehyde is produced by condensation polymerisation. It is also known as
Options- A. teflon
- B. bakelite
- C. polyester
- D. nylon-66 Discuss
- 7. The most convenient way of expressing solution concentration is in terms of
Options- A. mole fraction
- B. normality
- C. molality
- D. molarity Discuss
- 8. Urea is a __________ fertiliser.
Options- A. nitrogenous
- B. potassic
- C. phosphatic
- D. none of these Discuss
- 9. A fast breeder reactor
Options- A. uses natural uranium as fuel.
- B. does not require a moderator.
- C. both (a) and (b).
- D. neither (a) nor (b). Discuss
- 10. Carbon refractories have very high
Options- A. wetting characteristics
- B. refractoriness
- C. thermal conductivity
- D. both (b) and (c) Discuss
More questions
Correct Answer: smaller than
Correct Answer: organic peroxides
Correct Answer: liquefied petroleum gas
Correct Answer: decreases
Correct Answer: bottom of hot metal mixer.
Correct Answer: bakelite
Correct Answer: molarity
Correct Answer: nitrogenous
Correct Answer: does not require a moderator.
Correct Answer: both (b) and (c)
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