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- Question
Magnese steels
Options- A. are non-magnetic
- B. possess high electrical resistance
- C. possess low coefficient of expansion
- D. are used for the manufacture of rails
- E. all the above.
- Correct Answer
- all the above.
- 1. For high grade instruments the steel preferred to, is
Options- A. cast steel
- B. bessemer steel
- C. mild steel
- D. whitworth compressed steel. Discuss
- 2. Bullet proof glass is made of thick glass sheet sandwiched by a layer of
Options- A. steel
- B. stainless steel
- C. high test plastic
- D. chromium plate. Discuss
- 3. Slump test for concrete is carried out, to determine
Options- A. strength
- B. durability
- C. workability
- D. water content. Discuss
- 4. Refractory bricks are
Options- A. neutral refractory bricks
- B. acid refractory bricks
- C. basic refractory bricks
- D. all the above. Discuss
- 5. Asbestos
Options- A. is a natural fibrous mineral substance
- B. is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3)
- C. contains iron oxide and alumina
- D. all the above. Discuss
- 6. The term frog means
Options- A. an apparatus to lift the stone
- B. a depression on a face of brick
- C. vertical joint in a brick work
- D. soaking brick in water. Discuss
- 7. The coefficient of hardness of stones used in road work should be greater than
Options- A. 10
- B. 12
- C. 15
- D. 17. Discuss
- 8. Bitumen felt is used for
Options- A. water proofing
- B. damp proofing
- C. both (a) and (b)
- D. neither (a) nor (b). Discuss
- 9. Chlorite, a green colour mineral is mainly derived from the decomposition of
Options- A. augite
- B. biotite
- C. horn blende
- D. All of these. Discuss
- 10. Index number expressing the relative sizes of both coarse and fine aggregates, is called
Options- A. proportioning of aggregates
- B. fineness modulus
- C. grading of aggregates
- D. none of these. Discuss
Building Materials problems
Search Results
Correct Answer: cast steel
Correct Answer: high test plastic
Correct Answer: workability
Correct Answer: all the above.
Correct Answer: all the above.
Correct Answer: a depression on a face of brick
Correct Answer: 17.
Correct Answer: both (a) and (b)
Correct Answer: augite
Correct Answer: fineness modulus
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