S.B.
Roll No. _____________
CONSTRUCTION MATERIALS
3rd Exam/Civil/5143/Dec’06
Duration
: 4 Hrs.
Section A
1.
Fill in the blanks
a.
Granite is much _______ then
lime stone.
b.
Silica prevents __________ in
the brick earth.
c.
Gypsum is added to control the ___________
of water
d.
Annual rings represent
__________ of the tree.
e.
Copper is ________ conductor of
heat.
State true or false:
a.
Turpentine oil is a thinner in
an oil paint.
b.
Glass is a hard material.
c.
Plastics have high specific
gravity
d.
Lime is obtained from calcium
oxide.
e.
Roofing tiles are thicker than
flooring tiles.
Choose the correct one:
a.
State is a sedimentary/
metamorphic rock.
b.
Thermal conductivity of glass
is low / high.
c.
Lead/ copper can be cut with a
knife.
d.
Mango is an endogenous /
exogenous tree.
e.
The strength of cement
increases / decreases with storage.
Section
–B
Note: attempt any five questions
2.
a.
Differentiate between stone and
a rock.
b.
Give the characteristic of a
good brick.
c.
How storing of cement is done?
d.
Explain uses of plywood.
e.
Explain the difference between
paint and varnish.
f.
Give the requirements of a good
sound insulating material.
Section
–C
Note : Attempt any three questions.
3.
a.
Give the properties of floor
tiles and roof tiles.
b.
Explain setting and
calcinations of lime.
4.
Explain with a neat sketch the
working of a bull’s trench kiln for manufacturing bricks.
5.
a.
Explain setting and hardening
of cement.
b.
Explain the difference between
bitumen and asphalt.
6.
a.
Explain with a neat sketch
natural seasoning of timber.
b.
Give the properties and uses of
mild steel.
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