Q.1

For a vehicle moving with a speed ofkm per hour, the brake reaction time, in ordinary cases, is

  • 1 sec
  • 1.5 sec
  • 2.0 sec
  • 2.5 sec
  • 3.0 sec
Q.2

Design of horizontal curves on highways, is based on

  • design speed of vehicles
  • permissible friction on the road surface
  • permissible centrifugal ratio
  • permissible maximum super-elevation
  • all the above.
Q.3

Design of horizontal curves on highways, is based on

  • design speed of vehicles
  • permissible friction on the road surface
  • permissible centrifugal ratio
  • permissible maximum super-elevation
  • all the above.
Q.4

For a vehicle moving with a speed ofkm per hour, the brake reaction time, in ordinary cases, is

  • 1 sec
  • 1.5 sec
  • 2.0 sec
  • 2.5 sec
  • 3.0 sec
Q.5

In ideal pavement is constructed with

  • bricks
  • hard soil
  • Portland cement concrete
  • tar
  • none of these.
Q.6

Degree of a road curve is defined as the angle in degrees subtended at the centre by an arc of

  • 10 metres
  • 20 metres
  • 25 metres
  • 30 metres
  • 50 metres
Q.7

The tangent length of a simple circular curve of radius R deflecting through θ°, is

  • R cot θ/2
  • R tan θ
  • R tan θ/2
  • R sin θ
  • R sin θ/2
Q.8

Formation width of a hill road is the distance between

  • outer end of side drain to outer end of parapet wall
  • outer end of side drain to inner end of parapet wall
  • inner end of side drain to outer end of parapet wall
  • inner end of side drain to inner end of parapet wall
  • none of these.
Q.9

If the designed speed on a circular curve of radiusm iskm/hour, no superelevation is provided, if the camber, is

  • 4%
  • 3%
  • 2%
  • 1.7%
Q.10

The width formation of a road means the width of

  • carriageway
  • pavement and shoulders
  • embankment at ground level
  • embankment at the top level.
Q.11

On a pavement with parabolic camber, the angle of inclination of the vehicles will be

  • more at the crown
  • less at the edges
  • more at the edges
  • same at the edges as well as at the crown
  • none of these.
Q.12

The distance travelled by a moving vehicle during perception and brake reaction times, is known as

  • sight distance
  • stopping distance
  • lag distance
  • none of these.
Q.13

Which one of the following transportation systems is not used for the conveyance of passengers in India?

  • railways
  • roads
  • shipping
  • air lines
  • pipe lines.
Q.14

For a 6.6 m wide two lane pavement, berms are provided on either side having a width of

  • l.00 m
  • 1.25 m
  • 1.50 m
  • 1.75 m
  • 2.00 m
Q.15

California Bearing Ratio method of designing flexible pavements is more accurate as it involves

  • characteristics of soils
  • traffic intensities
  • character of the road making materials
  • none of these.
Q.16

Volume of traffic which is due to improvement carried out in adjacent area, is known as

  • development traffic
  • generated traffic growth
  • normal traffic growth
  • current traffic.
Q.17

Width of a rotary round should be equal to

  • twice the width of narrowest radial road
  • width of the widest road
  • width of the widest road plus the width of one lane
  • width of the widest road plus 2 metres.
Q.18

If P is the number of vehicles per day at last census, r is the increase in traffic and n is the number of years passed after last census, number of vehicles A per day for design, is

  • P (1 + r)n
  • P (1 - r)n
  • P (1 + r)-n+5
  • P (1 + r)5n
Q.19

Retaining walls are generally constructed with dry rubble stones withcm top width and

  • 1 : 2 front batter
  • 1 : 3 front batter
  • 1 : 4 front batter
  • 1 : 5 front batter
Q.20

On earth roads, the camber should preferably be

  • 1 in 20 to 1 in 24
  • 1 in 30 to 1 in 48
  • 1 in 15 to 1 in 20
  • 1 in 10 to 1 in 15
  • 1 in 10 to 1 in 12
Q.21

Indian Road Congress (I.R.C.) was founded and constituted with its head quarters at New Delhi, in

  • 1924
  • 1927
  • 1930
  • 1934
  • 1942
Q.22

The difference in gradients after full super-elevation and the initial alignment of a road, is known as

  • ruling gradient
  • rising gradient
  • compensated gradient
  • differential gradient
  • none of these.
Q.23

Following type of pavement is generally known as flexible pavement

  • water-bound macadam roads
  • stabilised soil roads
  • road constructed with various layers of building material well compacted
  • all the above.
Q.24

Thickness of broken line markings on multi-lane road for lanes is generally kept

  • 10 cm
  • 12 cm
  • 15 cm
  • 18 cm
  • 20 cm
Q.25

For the design of cement concrete pavement for corner loading, Indian Road Congress recommends the use of

  • Westergard's formula
  • Kelly's formula
  • Goldbeck's formula
  • Spanlar's formula
  • Picker's formula.
Q.26

Pick up the incorrect statement from the following:

  • Highways are always constructed in straight line
  • Highways may be provided horizontal curves
  • Highways may be provided vertical curves
  • Highways may be provided both horizontal and vertical curves.
Q.27

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

  • 3 R sin Δ/3 sin 2α
  • 3 R sin Δ/2 sin 3α
  • 3 R sin Δ/3 sin α/2
  • 3 R sin 2Δ sin α
Q.28

Longitudinal pavement lines marked broken in white paint

  • are for the guidance of the drivers
  • are not to be crossed over
  • may be crossed over at the discretion of the driver
  • all the above.
Q.29

The gradients of trace cuts for hilly roads, are kept

  • equal to ruling gradient
  • 10 tO 20 per cent easier than ruling gradients
  • 10 to 20 per cent steeper than ruling gradients
  • none of these.
Q.30

Roughness index of roads, is expressed as

  • size of the stone on the pavement
  • number of patches on the pavement
  • cumulative deformation of surface per horizontal distance
  • type of the road surface.
0 h : 0 m : 1 s