500 Best Building Materials MCQ
Q161). Putty is
a).made with finely powdered chalk and linseed oil
b).used for fixing glass panes
c).softened by a solution of pearl ash and quick-lime soaked in water
d).all the above.
Correct Answer:
all the above.
Explanation:
Q162). The initial setting time of hydraulic lime, is
a).30 minutes
b).60 minutes
c).90 minutes
d).120 minutes
Correct Answer:
120 minutes
Explanation:
Q163). PVC stands for
a).plastic very compact
b).polythene vinyl chloride
c).polythene vinyl carbon
d).polythene vanadium carbide.
Correct Answer:
polythene vinyl chloride
Explanation:
Q164). Generally wooden moulds are made from
a).ply wood
b).shisham wood
c).deodar wood
d).teak wood
Correct Answer:
shisham wood
Explanation:
Q165). Cement paints usually
a).contain hydrated lime
b).contain 5% to 10% colour pigments
c).are prepared with white cement
d).all the above.
Correct Answer:
all the above.
Explanation:
Q166). The cement becomes unsound by the presence of excess
a).sulphur
b).magnesia
c).lime
d).All of these.
Correct Answer:
All of these.
Explanation:
Q167). The kiln which may work throughout the year, is
a).Clamp
b).Bull’s kiln
c).Hoffman’s kiln
d).none of these.
Correct Answer:
Hoffman’s kiln
Explanation:
Q168). The minimum compressive strength of 1st class bricks should be
a).75 kg/cm
b).90 kg/cm
c).100 kg/cm
d).120 kg/cm
Correct Answer:
100 kg/cm
Explanation: