500 Best Building Materials MCQ
Q249). Pick up the correct statement from the following:
a).The percentage of absorption for firebricks varies from 5 to 10
b).The percentage of silica in silica bricks is to the extent of about 95 to 97 percent
c).Roughly 1 to 2 percent of lime in silica bricks is added to act as binding material
d).All the above.
Correct Answer:
All the above.
Explanation:
Q250). Spirit varnish generally consists of
a).oil, wax and resin
b).alcohol, wax and turpentine
c).pigment and synthetic resin
d).spirit and shellac
Correct Answer:
spirit and shellac
Explanation:
Q251). Pick up the correct statement from the following:
a).Roasting is not necessary if iron ore is an oxide
b).Impurities float on the molten iron as slag
c).The slag contains lime about 45%
d).All the above.
Correct Answer:
All the above.
Explanation:
Q252). The tendency of a stone is, to split along:
a).texture
b).fracture
c).cleavage
d).structure
Correct Answer:
cleavage
Explanation:
Q253). Acrylic is the name of
a).cellulose resin
b).alkyd resin
c).methyl metha crylate
d).cumarone-indene.
Correct Answer:
methyl metha crylate
Explanation:
Q254). Glazing of clay products, is done
a).to improve their appearance
b).to protect them from atmospheric effect
c).to protect them from corrosive action
d).all the above.
Correct Answer:
all the above.
Explanation:
Q255). Lime mortar is generally made with
a).quick lime
b).fat lime
c).hydraulic lime
d).plain lime
Correct Answer:
hydraulic lime
Explanation:
Q256). Duco paints are
a).plastic paints
b).cellulose paints
c).emulsion paints
d).bituminous paints
Correct Answer:
bituminous paints
Explanation: