While calculating the overtaking sight distance, the height of the object above

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Question
While calculating the overtaking sight distance, the height of the object above road surface, is assumed
Options
A. Zero
B. 50 cm
C. 75 cm
D. 100 cm
E. 120 cm

Correct Answer

120 cm

Highway Engineering problems

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1. Pick up the correct statement from the following:
Options
A. The corss fall of the shoulder should be at least 0.5% steeper than camber
B. On superelevated sections, the shoulders should be provided a cross fall equal to camber
C. Earthern roads in general are provided steepest crossfall
D. All the above.

2. The width of pavement in addition to a gravelled berm 1 m on either side for a two directional traffic recommended by Nagpur Conference of Chief Engineers, is
Options
A. 4.7 m
B. 5.7 m
C. 6.7 m
D. 7.7 m
E. 8.7 m

4. If E is the modulus of elasticity of the concrete in kg/cm², d is the slab thickness in cm, is the Poisson's ratio for the concrete, k is the sub-grade modulus kg/cm³, the radius r of relative stiffness in cm,
Options
A.
B.
C.
D.

5. Before providing super-elevation on roads, the portion of the carriageway between the crown and the outer edge is made
Options
A. to have a reduced fall
B. horizontal
C. to have slope of the camber on the other half of the carriageway
D. none of these.

7. Set-back distance is the distance between
Options
A. road land boundary and building line
B. road land boundary and control line
C. building line and control line
D. road land boundary and control line.

8. Over taking time required for a vehicle with design speed 50 km ph and overtaking acceleration 1.25 m/sec² to overtake a vehicle moving at a speed 30 km ph, is
Options
A. 5.0 secs
B. 6.12 secs
C. 225.48 secs
D. 30 secs

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