Discussion
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- Question
LPG when brought to atmospheric pressure & temperature will be a
Options- A. liquid lighter than water.
- B. liquid heavier than water.
- C. gas lighter than air.
- D. gas heavier than air.
- Correct Answer
- gas heavier than air.
- 1. __________ polymer is used for making unbreakable crockery.
Options- A. Thermoplastic
- B. Melamine
- C. Addition
- D. none of these Discuss
- 2. __________ is a copolymer.
Options- A. Nylon-66
- B. Polyrophylene
- C. PVC
- D. Poly tetra flouro ethylene Discuss
- 3. 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
- 4. 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
- 5. Nylon-6 is a
Options- A. polyamide
- B. thermosetting resin
- C. polyester
- D. none of these Discuss
- 6. 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
- 7. Stamp mills are generally used for crushing
Options- A. iron ores
- B. gold ores
- C. talc
- D. diamond Discuss
- 8. Molar heat capacity of water in equilibrium with ice at constant pressure is
Options- A. 0
- B. ?
- C. 1
- D. none of these Discuss
- 9. The OH- concentration in a solution having pH value 3 is
Options- A. 10-3
- B. 10-10
- C. 10-11
- D. 10-13 Discuss
- 10. Collapsible tubes for tooth paste are produced by __________ extrusion.
Options- A. direct
- B. indirect
- C. impact
- D. none of these Discuss
More questions
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
Correct Answer: ?
Correct Answer: 10-11
Correct Answer: impact
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