500 Best Building Materials MCQ
Q97). A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than
a).0.1
b).0.15
c).0.2
d).0.25
Correct Answer:
0.2
Explanation:
Q98). The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:
a).15, 75, 10
b).75, 10, 15
c).10, 15, 75
d).10, 75, 15.
Correct Answer:
15, 75, 10
Explanation:
Q99). Geologically, marble is known as
a).sedimentary rock
b).igneous rock
c).metamorphic rock
d).stratified rock.
Correct Answer:
metamorphic rock
Explanation:
Q100). The commonly used drying oil for oil paints, is
a).olive oil
b).linseed oil
c).kerosine oil
d).accetate of lead.
Correct Answer:
accetate of lead.
Explanation:
Q101). Initial setting of cement is caused due to
a).Tri-calcium silicate
b).Di-calcium silicate
c).Tri-calcium aluminate
d).Tetra calcium alumino ferrite.
Correct Answer:
Tri-calcium aluminate
Explanation:
Q102). The foliated structure is very common in
a).sedimentary rocks
b).igneous rocks
c).metamorphic rocks
d).none of these.
Correct Answer:
metamorphic rocks
Explanation:
Q103). Turpentine oil is used in paints as
a).thinner
b).vehicle
c).base
d).drier.
Correct Answer:
thinner
Explanation:
Q104). The hardest rock is
a).marble
b).diamond
c).talc
d).quartz.
Correct Answer:
diamond
Explanation: