Industries Extension Officer Coaching Basic Civil engineering

Industries Extension Officer Coaching
Basic Civil engineering

1. The hardest rock is
a. Marble
b. Diamond ….
c. Talc
d. Quartz
2. The tendency of a stone to split along
a. Texture
b. Fracture
c. Cleavage….
d. Structure
3. The cracks which extend from bark towards the sap wood in the cross section of a tree are called
a. Radial shakes
b. Star shakes…..
c. Heart shakes
d. Cup shakes
4. A well seasoned timber may contain moisture up to
a. 4 to 6%
b. 6 to 8 %
c. 8 to 10 %
d. 10 to 12 % ……..
5. Soundness of a cement is tested by
a. Vicat’s apparatus
b. Le –Chatlier apparatus…….
c. Compressive strength testing apparatus
d. None of these
6. Stones used for the construction of retaining walls must be
a. Soft
b. Hard
c. Light
d. Heavy…….
7. The rocks which are formed due to pouring of magma at the earth’s surface are called
a. Plutonic rocks
b. Hypabyssal rocks
c. Volcanic rocks……
d. Igneous rocks
8. Plywood is made from
a. Common timber
b. Bamboo fiber
c. Teak wood only…….
d. Asbestos sheets
9. Clay and slit content in a good brick earth must be atleast
a. 50%....
b. 40%
c. 30%
d. 25%
10. A badly mixed cement concrete results in
a. Segregation
b. Bleeding
c. Honey combing……
d. None of these
11.