BUILDING MATERIALS MCQS SET 04

BUILDING MATERIALS MCQS SET 04

1.  Gneiss is obtained from
A. igneous rocks
B. metamorphic rocks
C. sedimentary rocks
D. sedimentary metamorphic rocks.
Answer: Option D
 

2.  The rocks formed by gradual deposition, are called
A. sedimentary rocks
B. igneous rocks
C. metamorphic rocks
D. none of these.
Answer: Option A
 

3. Galvanizing means covering iron with a thin coat of
A. tin
B. zinc
C. glaze
D. coal tar.
Answer: Option B
 

4. For preparing porcelains, the clay should be
A. sufficiently pure
B. of high degree of tenacity
C. of good plasticity
D. All the above.
Answer: Option D
 

5. Polymerization helps to improve the property of
A. strength
B. rigidity
C. elasticity
D. all of these.
Answer: Option D
 

6. Good quality stones must
A. be durable
B. be free from clay
C. resist action of acids
D. all the above.
Answer: Option D
 

7. Sewer pipes are made of
A. earthen ware
B. stone ware
C. refractory clay
D. terracota
E. all the above.
Answer: Option B
 

8. Fibre glass
A. retains heat-longer
B. has a higher strength to weight ratio
C. is shock proof and fire retardent
D. does not decay
E. all the above.
Answer: Option E
 

9. Pick up the correct statement from the following:
A. The theory of formation of concrete is based on the phenomena of formation of voids
B. The bulking of sand is taken into account while volumetric proportioning of the aggregates
C. The dry sand and the sand completely flooded with water, have practically the same volume
D. The expansion and contraction joints are provided if concrete structures exceed 12 m in length
E. All the above.
Answer: Option E
 

10.  Pick up the correct statement from the following:
A. In stone arches, the stones are placed with their natural beds radial
B. In cornices, the stones are placed with their natural beds as vertical
C. In stone walls, the stones are placed with their natural beds as horizontal
D. All the above.
Answer: Option D