500 Best Building Materials MCQ
Q121). Quick setting cement is produced by adding
a).less amount of gypsum in very fine powdered form
b).more amount of gypsum in very fine powdered form
c).aluminium sulphate in very fine powdered form
d).pozzolana in very fine powdered form
Correct Answer:
aluminium sulphate in very fine powdered form
Explanation:
Q122). Duco is one of the patent forms of
a).emulsion paints
b).plastic paints
c).bituminous paints
d).cellulose paints.
Correct Answer:
cellulose paints.
Explanation:
Q123). Pick up the correct statement from the following:
a).The substance which consists of one primary chemical, is known as monomer
b).The polymer consists of thousands of monomers joined together
c).The polymer molecule is called macro-molecule
d).All the above.
Correct Answer:
All the above.
Explanation:
Q124). Bulking of sand is caused due to
a).surface moisture
b).air voids
c).viscosity
d).clay contents
Correct Answer:
surface moisture
Explanation:
Q125). The normal curing period for lime mortar, is:
a).one day
b).3 days
c).7 days
d).10 days
Correct Answer:
7 days
Explanation:
Q126). The type of steel used for precision levelling staff, is
a).Titanium steel
b).Carbon steel
c).Invar
d).Stainless steel.
Correct Answer:
Invar
Explanation:
Q127). During pudding
a).molten metal is kept clear of the fuel
b).carbon is converted into carbonic acid gas
c).silicon forms a slag
d).all the above.
Correct Answer:
all the above.
Explanation:
Q128). German silver is an alloy of
a).zinc, lead and nickel
b).silver, gold and lead
c).copper, nickel and zinc
d).copper, brass and zinc
Correct Answer:
copper, nickel and zinc
Explanation: