162. Cement grouted pavement is classified as
A. rigid pavement
B. semi-rigid pavement
C. flexible pavement
D. none of these.
163. Thickness of a pavement may be reduced considerably by
A. compaction of soil
B. stabilisation of soil
C. drainage of soil
D. combination of all the above.
164. Minimum thickness of the base of a flexible pavement, is
A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm
165. For a poorly graded sub-grade soil, thickness of subbase, is
A. 10 cm
B. 15 cm
C. 20 cm
D. 30 cm.
166. Traffic engineering only includes
A. planning of regulatory measures
B. design and application of control devices
C. analysis of traffic characteristics
D. all the above.
167. For clear distinct vision, images of obstructions should fall on the retina with a cone of
A. 2?
B. 3?
C. 4?
D. 5?
168. In complex situations, total time required for a driver to form a judgement and to act, may be taken as
A. 1.0 sec
B. 1.5 sec
C. 2.0 sec
D. 3.0 sec.
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