500 Best Building Materials MCQ
Q145). Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as
a).quick setting cement
b).rapid hardening cement
c).white cement
d).low heat Portland cement.
Correct Answer:
white cement
Explanation:
Q146). Dry rot
a).cracks the timber
b).reduces the strength of timber
c).reduces the timber to powder
d).shrinks the timber
Correct Answer:
reduces the timber to powder
Explanation:
Q147). Which one of the following polymers is obtained from condensation polymerization?
a).phenol formaldehyde
b).carbamide
c).melamine-formaldehyde
d).all of these.
Correct Answer:
all of these.
Explanation:
Q148). The weight of 1 m of brick earth, is about
a).1200 kg
b).1500 kg
c).1800 kg
d).2000 kg.
Correct Answer:
1800 kg
Explanation:
Q149). Pozzolana (or surkhi) is used in lime
a).to impart hydraulicity
b).to prevent shrinkage
c).to decrease the cost of construction
d).to decrease the setting time.
Correct Answer:
to impart hydraulicity
Explanation:
Q150). Mastic asphalt is normally used for
a).sound insulation
b).water proofing
c).fire proofing
d).none to these.
Correct Answer:
water proofing
Explanation:
Q151). Lime stone is not a
a).sedimentary rock
b).stratified rock
c).aqueous rock
d).metamorphic rock.
Correct Answer:
metamorphic rock.
Explanation:
Q152). The size of modular bricks, is
a).10 x 10 x 9 cm
b).19 x 9 x 9 cm
c).22.5 x 10 x 8.5 cm
d).22.5 x 8.0 x 9 cm.
Correct Answer:
19 x 9 x 9 cm
Explanation: