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- Question
The cast iron when heated to red heat with powdered red haemetite in an oven for increasing its toughness, is converted to
Options- A. grey cast iron
- B. white cast iron
- C. mottled cast iron
- D. toughed cast iron.
- Correct Answer
- mottled cast iron
- 1. Rapid hardening cement contains
Options- A. Tri-calcium silicate
- B. Tri-calcium aluminate
- C. Tetra-calcium alumino-ferrite
- D. Dicalcium silicate. Discuss
- 2. The rocks which are formed due to pouring of magma at the earth's surface are called
Options- A. Plutonic rocks
- B. Hypabyssal rocks
- C. Volcanic rocks
- D. Igneous rocks Discuss
- 3. Pick up the correct statement from the following:
Options- A. The distinct plane of division along which a stone can easily be split, is called natural bed of stone
- B. The natural bed of sedimentary rocks is along the planes of stratification
- C. The natural bed of igneous rocks is not defined
- D. All the above. Discuss
- 4. Pick up the correct statement from the following:
Options- A. Catalysts are added to assist and accelerate the hardening of resin,
- B. The fillers are inert materials and they impart strength and hardness
- C. Fibrous fillers increase thermal resistance
- D. All the above. Discuss
- 5. The commonly used drying oil for oil paints, is
Options- A. olive oil
- B. linseed oil
- C. kerosine oil
- D. accetate of lead. Discuss
- 6. The cement becomes unsound by the presence of excess
Options- A. sulphur
- B. magnesia
- C. lime
- D. All of these. Discuss
- 7. In a rock calcium carbonate predominates. State whether it is :
Options- A. Sillicious rock
- B. Argillaceous rock
- C. Calcareous rock
- D. None of these. Discuss
- 8. The most durable varnish is
Options- A. water varnish
- B. spirit varnish
- C. turpentine varnish
- D. oil varnish
- E. none of these. Discuss
- 9. A volatile substance added to a paint to make its application easy and smooth, is known as
Options- A. base
- B. solvent
- C. vehicle
- D. none to these. Discuss
- 10. Jhumb bricks are
Options- A. under burnt
- B. over burnt
- C. kutcha
- D. none of these. Discuss
Building Materials problems
Search Results
Correct Answer: Tri-calcium silicate
Correct Answer: Volcanic rocks
Correct Answer: All the above.
Correct Answer: All the above.
Correct Answer: accetate of lead.
Correct Answer: All of these.
Correct Answer: Calcareous rock
Correct Answer: oil varnish
Correct Answer: solvent
Correct Answer: over burnt
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