Discussion
Home ‣ Chemical Engineering ‣ Refractory Technology See What Others Are Saying!
- Question
Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns.
Options- A. 1800
- B. 2200
- C. 2400
- D. 2700
- Correct Answer
- 2700
- 1. Visbreaking
Options- A. uses natural gas as feed.
- B. is carried out at atmospheric pressure.
- C. produces fuel oil of lower viscosity.
- D. produces gasoline only. Discuss
- 2. Ammonia synthesis reaction is
Options- A. exothermic
- B. endothermic
- C. autocatalytic
- D. none of these Discuss
- 3. Color test of water is done with an instrument called
Options- A. tintometer
- B. colorimeter
- C. electro-chemical cell
- D. turbidimeter Discuss
- 4. An indication of degree of firing in silica brick is its
Options- A. specific gravity
- B. fusion point
- C. RUL
- D. none of these Discuss
- 5. Carbon refractories are exclusively used in the
Options- A. hearth of blast furnace.
- B. walls of coke oven.
- C. regenerators of coke oven.
- D. side wall of soaking pits. Discuss
- 6. In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be
Options- A. same as that for fluid flow.
- B. less than that for fluid flow.
- C. more than that for fluid flow.
- D. D2 - D1 (D1 and D2 are I.D. of inner and outer pipes respectively). Discuss
- 7. Phosphorus vapour comprises of
Options- A. P
- B. P2
- C. P3
- D. P4 Discuss
- 8. Which is the most effective catalyst used in catalytic cracking of petroleum products?
Options- A. Iron oxide
- B. Nickel
- C. Vanadium pentoxide
- D. Zeolite Discuss
- 9. Compressibility co-efficient for an absolutely compressible cake is
Options- A. 0
- B. 1
- C. 0 to 1
- D. ? Discuss
- 10. Which of the following is the most reactive (as regards the formation of CO + H2 from C + H2O)?
Options- A. Blast furnace coke
- B. Low temperature coke
- C. Anthracite coal
- D. Sub-bituminous coal Discuss
More questions
Correct Answer: produces fuel oil of lower viscosity.
Correct Answer: exothermic
Correct Answer: tintometer
Correct Answer: specific gravity
Correct Answer: hearth of blast furnace.
Correct Answer: more than that for fluid flow.
Correct Answer: P4
Correct Answer: Zeolite
Correct Answer: 1
Correct Answer: Low temperature coke
Comments
There are no comments.More in Chemical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.