Discussion
Home ‣ Chemical Engineering ‣ Materials and Construction See What Others Are Saying!
- Question
Hammers and railway rails are normally made of
Options- A. mild steel
- B. dead mild steel
- C. medium carbon steel
- D. high carbon steel
- Correct Answer
- high carbon steel
- 1. A pressure vessel is said to be made of 'thick' shell, if the ratio of its diameter to wall thickness is
Options- A. 10
- B. 10
- C. 20
- D. 20 Discuss
- 2. For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.
Options- A. 10000
- B. 5
- C. 500
- D. 1000 Discuss
- 3. Test piece for determination of RUL of a refractory is heated in a/an
Options- A. oxidising atmosphere
- B. reducing atmosphere
- C. electric furnace
- D. neutral atmosphere Discuss
- 4. __________ polymer is used for making unbreakable crockery.
Options- A. Thermoplastic
- B. Melamine
- C. Addition
- D. none of these Discuss
- 5. __________ is a copolymer.
Options- A. Nylon-66
- B. Polyrophylene
- C. PVC
- D. Poly tetra flouro ethylene Discuss
- 6. Petroleum deposits are detected by the.
Options- A. oil seepage at the surface of the earth.
- B. measuremet of density, elasticity and magnetic & electric properties of the rock in the crust of the earth.
- C. age & nature of rocks inside the crust of the earth.
- D. all (a), (b) and (c) Discuss
- 7. Hole diameter of the seive trays in the distillation column ranges from __________ mm.
Options- A. lto3
- B. 4 to 8
- C. 3 to 12.5
- D. 12.5 to 18.5 Discuss
- 8. Nylon-6 is a
Options- A. polyamide
- B. thermosetting resin
- C. polyester
- D. none of these Discuss
- 9. Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, ? = yield strength and E = modulus of elasticity)
Options- A. E
- B. ?
- C. ?/E
- D. E/? Discuss
- 10. Stamp mills are generally used for crushing
Options- A. iron ores
- B. gold ores
- C. talc
- D. diamond Discuss
More questions
Correct Answer: 10
Correct Answer: 5
Correct Answer: electric furnace
Correct Answer: Melamine
Correct Answer: Nylon-66
Correct Answer: all (a), (b) and (c)
Correct Answer: 3 to 12.5
Correct Answer: polyamide
Correct Answer: ?/E
Correct Answer: gold ores
Comments
There are no comments.More in Chemical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.