Practice Test: Question Set - 15
1. Reduction of load capacity in a ruling gradient of
- (A) 1 in 10, is
10%
- (B) 1 in 15, is
15%
- (C) 1 in 20, is
10%
- (D) 1 in 25, is
25%
2. The width of road pavements, depends upon
- (A) Width
of traffic lane
- (B) Number of
traffic
- (C) Width of
median strip
- (D) All the
above
3. While calculating the overtaking sight distance, the height of the object above road surface, is assumed
- (A) 50 cm
- (B) 70 cm
- (C) 100 cm
- (D) 120 cm
4. Minimum thickness of the base of a flexible pavement, is
- (A) 10 cm
- (B) 15 cm
- (C) 20 cm
- (D) 25 cm
5. Widening of the roads on curves in hilly region, is done
- (A) On the outer
side
- (B) On the inner
side
- (C) On the outer
and inner sides equally
- (D) Less on
outer side and more on inner side
6. The wall constructed for the stability of a back filling portion of a road on the downhill side, is known as
- (A) Retaining
wall
- (B) Breast wall
- (C) Parapet wall
- (D) All the
above
7. If V is speed of a moving vehicle, r is radius of the curve, g is the acceleration due to gravity, W is the width of the carriageway, the super elevation is
- (A) WV/gr
- (B) W2V/gr
- (C) WV2/gr
- (D) WV/gr2
8. Side drains on both sides of a hill road, are essential when the road is
- (A) Along the
spur curves
- (B) Along the
re-entrant curves
- (C) In cutting
- (D) None of
these
9. In a right angle bend of a road provided with a transition throughout, the maximum polar angle will be
- (A) 10°
- (B) 15°
- (C) 20°
- (D) 30°
10. If V is the design speed in km/hour and R is the radius of the curve of a hill road, the super-elevation
- (A) e = V
/ 127 R
- (B) e = V2
/ 127 R
- (C) e = V2
/ 225 R
- (D) e = V
/ 225 R
11. Along a hill road, a side drain is provided on
- (A) Outer side
of a spur curve
- (B) Outer side
of a re-entrant curve
- (C) Outer side
of both (a) and (b)
- (D) Inner side
of both (a) and (b)
12. The total length of a valley formed by two gradients - 3% and + 2% curve between the two tangent points to provide a rate of change of centrifugal acceleration 0.6 m/sec2, for a design speed 100 kmph, is
- (A) 16.0 m
- (B) 42.3 m
- (C) 84.6 m
- (D) None of
these
13. If V is speed in km/hour and R is radius of the curve, the super-elevation e is equal to
- (A) V2/125 R
- (B) V2/225 R
- (C) V2/325 R
- (D) V2/25 R
14. The weaving length of a roadway is the distance
- (A) Between the
channelizing islands
- (B) Equal to
half circumference
- (C) Equal to
total width of adjoining radial roads
- (D) Equal to
diameter of rotary
15. Following type of pavement is generally known as flexible pavement
- (A) Water-bound
macadam roads
- (B) Stabilized
soil roads
- (C) Road
constructed with various layers of building material well compacted
- (D) All the
above
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