Civil Engineering - Building Materials

46.
Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as
quick setting cement
rapid hardening cement
white cement
low heat Portland cement.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
Dry rot
cracks the timber
reduces the strength of timber
reduces the timber to powder
shrinks the timber
spoils the appearance of timber.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
Which one of the following polymers is obtained from condensation polymerization?
phenol formaldehyde
carbamide
melamine-formaldehyde
all of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
The weight of 1 m3 of brick earth, is about
1200 kg
1500 kg
1800 kg
2000 kg.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
Pozzolana (or surkhi) is used in lime
to impart hydraulicity
to prevent shrinkage
to decrease the cost of construction
to decrease the setting time.
Answer: Option
Explanation:
No answer description is available. Let's discuss.