500 Best Building Materials MCQ
Q241). A ferrous metal is
a).cast iron
b).wrought iron
c).steel
d).all the above.
Correct Answer:
all the above.
Explanation:
Q242). For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is
a).3.34244212962963
b).2.9306712962963
c).2.52436342592593
d).none of these.
Correct Answer:
3.34244212962963
Explanation:
Q243). Pick up the correct statement from the following:
a).Lime is available in free state
b).Lime is available by dissolving calcium carbonate in water
c).Lime is available by calcining calcium carbonate at 900°C
d).Lime is nothing but calcium chloride
Correct Answer:
Lime is available by calcining calcium carbonate at 900°C
Explanation:
Q244). Water paint is a
a).white wash
b).colour wash
c).whiting
d).all the above.
Correct Answer:
all the above.
Explanation:
Q245). Seasoning of timber is done
a).to make it water proof
b).to paint its surface
c).to increase its temperature
d).to remove water.
Correct Answer:
to remove water.
Explanation:
Q246). The specific gravity of marble, is
a).2.5
b).2.6
c).2.66
d).2.72
Correct Answer:
2.72
Explanation:
Q247). The rocks having alumina or clay as their major constituents, are known as
a).siliceous rocks
b).argillaceous rocks
c).calcareous rocks
d).sedimentary rocks
Correct Answer:
argillaceous rocks
Explanation:
Q248). The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner, are known as
a).knots
b).rindgalls
c).burls
d).none of these.
Correct Answer:
rindgalls
Explanation: