BUILDING MATERIALS MCQS SET 50

BUILDING MATERIALS MCQS SET 50

1. In arches, stratified stones are placed so that their planes are
(A) Parallel
(B) Perpendicular
(C) Radial
(D) None of these
Answer: Option C 

2. The fire clay contains pure
(A) Lime
(B) Oxide of iron
(C) Hydrated aluminium silicate
(D) Magnesium
Answer: Option C

3. Pick up the correct characteristic of Pyroxene from the following:
(A) It forms octagonal crystals
(B) It converts to chlorine by hydration
(C) Its density is 2.3 to 3.6 g/cm2
(D) All the above
Answer: Option D

4. The base material for distemper, is
(A) Chalk
(B) Lime
(C) Lime putty
(D) Cement wash
Answer: Option A

5. Slacking of lime is affected by
(A) Keeping it exposed to air
(B) Immersing the lime in water
(C) Crushing the lime lumps
(D) None of these
Answer: Option B

6. Stones used for the construction of retaining walls must be
(A) Soft
(B) Hard
(C) Light
(D) Heavy
Answer: Option D

7. Permanent magnets are made of high carbon steel and
(A) 15% of cobalt
(B) 20% of cobalt
(C) 35% of cobalt
(D) 45% of cobalt
Answer: Option D

8. Stainless steel resists corrosion due to
(A) Carbon
(B) Sulphur
(C) Vanadium
(D) Chromium
Answer: Option D

9. The most important constituent of varnish, is
(A) Drier
(B) Solvent
(C) Resin
(D) All the above
Answer: Option D

10. A ferrous metal is
(A) Cast iron
(B) Wrought iron
(C) Steel
(D) All the above
Answer: Option D