500 Best Building Materials MCQ
Q329). For a 50 kg cement bag water required, is
a).16.5 litres
b).18.5 litres
c).20.5 litres
d).22.5 litres
Correct Answer:
22.5 litres
Explanation:
Q330). The presence of sand in brick earth prevents:
a).cracking of bricks
b).shrinkage of bricks
c).warping of bricks
d).none of these.
Correct Answer:
warping of bricks
Explanation:
Q331). The property by virtue of which lime sets under water, is known as
a).slacking
b).setting
c).hydraulicity
d).calcining.
Correct Answer:
hydraulicity
Explanation:
Q332). Percentage content of silica in window glass, is
a).40 to 45
b).50 to 55
c).60 to 65
d).70 to 75.
Correct Answer:
70 to 75.
Explanation:
Q333). The coefficient of hardness of stones used in road work should be greater than
a).10
b).12
c).15
d).17
Correct Answer:
17
Explanation:
Q334). Pick up the correct statement from the following:
a).Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer
b).Cupola furnace is used for the manufacture of cast iron
c).Red short iron is of no value for welding purpose
d).All of the above.
Correct Answer:
All of the above.
Explanation:
Q335). The steel used for the manufacture of rails, is
a).Bessemer steel
b).mild steel
c).cast steel
d).stainless steel.
Correct Answer:
Bessemer steel
Explanation:
Q336). Slump test for concrete is carried out, to determine
a).strength
b).durability
c).workability
d).water content.
Correct Answer:
workability
Explanation: