500 Best Building Materials MCQ
Q9). In the method of condensation polymerization,
a).low-molecular substances are removed from the high molecular substance
b).the reaction proceeds with an evolution of ammonia
c).the reaction proceeds with an evolution of hydrogen chloride
d).all the above.
Correct Answer:
all the above.
Explanation:
Q10). In the cement the compound quickest to react with water, is
a).Tricalcium aluminate
b).Tetra-calcium alumino-ferrite
c).Tricalcium silicate
d).Dicalcium silicate.
Correct Answer:
Tricalcium aluminate
Explanation:
Q11). The initial setting time of lime-pozzolana, is
a).30 minutes
b).60 minutes
c).90 minutes
d).120 minutes.
Correct Answer:
120 minutes.
Explanation:
Q12). The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout
a).the monsoon
b).the winter
c).the summer
d).none of these.
Correct Answer:
the monsoon
Explanation:
Q13). The rocks which are formed due to cooling of magma at a considerable depth from earth’s surface are called
a).Plutonic rocks
b).Hypabyssal rocks
c).Volcanic rocks
d).Igneous rocks.
Correct Answer:
Plutonic rocks
Explanation:
Q14). Quartzite is a
a).metamorphic rock
b).argillaceous rock
c).calcareous rock
d).silicious rock.
Correct Answer:
silicious rock.
Explanation:
Q15). The variety of pig iron used for manufacture of wrought iron, is
a).Bessemer pig
b).Grey or foundry pig
c).White forge pig
d).Mottled pig.
Correct Answer:
White forge pig
Explanation:
Q16). Sand stone is
a).sedimentary rock
b).metamorphic rock
c).igneous rock
d).volcanic rock.
Correct Answer:
sedimentary rock
Explanation: