# Practice Test: Question Set - 17

**1. If**

*R*is the radius of a main circular curve, Δ is the angle of deflection and α is the polar deflection angle of any point, its radial distance is- (A) 3

*R*√(sin Δ/3 sin 2α)

- (B) 3

*R*√(sin Δ/2 sin 3α)

- (C) 3

*R*√(sin Δ/3 sin α/2)

- (D) 3

*R*√(sin 2Δ sin α)

**2. Raising of outer edge of a road with respect to inner edge, is known**

- (A) Super
elevation

- (B) Cant

- (C) Banking

- (D) All the
above

**3. The G.T. road from Lahore to Calcutta in undivided India, was constructed during**

- (A) 3495-3500 BC

- (B) 265-270 BC

- (C) 1540-1545 AD

- (D) 1440-1450 AD

**4. Endoscope is used to determine**

- (A) Spot speed

- (B) Average
speed

- (C) Travel time

- (D) None of
these

**5. The minimum road width is taken**

- (A) 9 m

- (B) 12 m

- (C) 16 m

- (D) 20 m

**6. Newly constructed pavement with ordinary Portland cement attains its working strength after**

- (A) 7 days

- (B) 14 days

- (C) 21 days

- (D) 28 days

**7. The maximum comfortable retardation applied to moving vehicles, is**

- (A) 3.42 m/sec

^{2}

- (B) 4.42 m/sec

^{2}

- (C) 5.56 m/sec

^{2}

- (D) 7.80 m/sec

^{2}

**8. For a vehicle moving with a speed of 80 km per hour, the brake reaction time, in ordinary cases, is**

- (A) 1 sec

- (B) 1.5 sec

- (C) 2.0 sec

- (D) 2.5 sec

**9. Horizontal curves on highways are provided**

- (A) To break the
monotony of driving

- (B) To
discourage the tendency to increase speed

- (C) To decrease
the mental strain on drivers

- (D) All the
above

**10. Bottom-most component of a flexible pavement, is**

- (A) Sub-grade

- (B) Sub-base

- (C) Base

- (D) Base course

**11. For a properly designed vehicle, the resistance generally ignored, is**

- (A) Wind
resistance

- (B) Rolling
resistance

- (C) Grade
resistance

- (D) Axle
resistance

**12. If the difference in elevation of an edge of the pavement 9 m wide and its crown is 15 cm, the camber of the pavement, is**

- (A) 1 in 60

- (B) 1 in 45

- (C) 1 in 30

- (D) 1 in 15

**13. A subsidiary area in a carriageway placed so as to control the movement of the traffic, is**

- (A) Median strip

- (B) Island

- (C) Flower bed

- (D) Refuge

**14. 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

**15. The traffic manoeuvre means**

- (A) Diverging

- (B) Merging

- (C) Crossing

- (D) All the
above

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