Highway Engineering MCQs Practice Set

1.The term used for major or important roads of a country is

• Country road
• Urban road
• Highway (Ans)
• None of these

2.A road connecting two towns is called a

• Country road (Ans)
• Urban road
• Highway
• None of these

3.The portion of a road surface, which is used by vehicular traffic, is known as

• Carriage-way (Ans)
• Shoulder
• Express way
• All of these

4.The city roads which are meant for through traffic usually on a continuous route are known as

• Carriage-way
• Express way
• Arterial streets (Ans)
• Sub- Arterial streets

5.The central portion of a road for high speed vehicles is known as

• Motor way (Ans)
• Express way (Ans)
• Carriage-way
• Shoulder

6.Carriage-way is protected by ………………… wide shoulders.

• 5 to 1.25m
• 25 to 2m (Ans)
• 2 to 4m
• 4 to 6m

7.The roads connecting capital cities of states is called

• National highway
• Express way
• State highway (Ans)
• Capital highway

8.In Telford construction, the side portions were made up of only one layer of broken stones and levelled off to give a camber not greater than

• 1 in 40
• 1 in 60 (Ans)
• 1 in 80
• 1 in 120

9.The camber, for the drainage of surface water, was first introduced by

• Telford
• Tresaguet (Ans)
• Sully
• Macadam

10.In water-bound Macadam roads

• Small broken stones are laid in two layers
• Voids between the stones are filled by stone dust
• Camber for drainage is given at the formation level itself
• All of the above (Ans)

11.The total annual cost of highway transportation (A) may be expressed as

• A=B-CN
• A=B+CN
• A=B/CN (Ans)
• A=CN/B

Where                     B= Annual cost of highway,

C= Annual cost of vehicle operation(single vehicle), and

N= Total number of vehicles on the road per year.

12.the unit cost of transportation (A_U) on a section of the highway may roughly be calculated by

• A_U =AL/N
• A_U=AN/L
• A_U=A/NL (Ans)
• A_U=A.N.L

Where                     L= Length of the highway in kilometres.

13.In order to give satisfactory service throughout the year, the road surface should

• Have a good carriage-way
• Have smooth gradient
• Have a good wearing surface
• All of these (Ans)

14.The top of the ground on which the foundation of road rests, is called

• Sub-grade (Ans)
• Soling
• Base
• Wearing layer

15.The foundation of a road is also called

• Soling
• Base
• Either(a) or(b) (Ans)
• None of these

16.The super structure of a road is called

• Wearing layer
• Wearing course
• Road surfacing
• Any one of these (Ans)

17.When the bearing capacity of soil is poor and the intensity of traffic is high, an additional layer is provided between the soling and sub-grade. This additional layer is called

• Wearing layer
• Sub-base (Ans)
• Road surfacing
• All of these

18.The thickness of base, in no case, should be more than

• 10cm
• 15cm
• 20cm
• 30cm (Ans)

19.The highest point on road surface is called

• Crown (Ans)
• Camber
• Gradient
• Berm

20.The function of a road base is to transmit load of the traffic from the ……………………. to the subgrade.

• Soling
• Surfacing (Ans)

21.The road surfacing should be

• Impervious
• Durable
• Stable
• All of these (Ans)

22.The slope of the line joining the crown and edge of the road surface is known as

• Cross-fall
• Cross-slope
• Camber
• Any one of these (Ans)

23.A camber of 1 in 30means that for a 30m wide road,the crown of the road will be …………. Above the edge of the road.

• 5m
• 1m (Ans)

24.The thickness of road surfacing depends upon the

• Type of traffic
• Intensity of traffic
• Type of material
• All of these (Ans)

25.The main object of providing a camber is

• To make the road surface impervious
• To make the road surface durable
• To drain off rain water from road surface, as quickly as possible (Ans)
• All of the above

26.In scanty rainfall areas, the camber provided will be

• Flatter (Ans)
• Steeper
• Zero
• None of these

27.On kankar road, the camber generally provided is

• 1 in 24 to 1 in 30 (Ans)
• 1 in 30 to 1 in 48
• 1 in 48 to 1 in 60
• 1 in 60 to 1 in 80

28.The shape of the camber provided for cement concrete pavement is

• Straight line (Ans)
• Parabolic
• Elliptical
• None of these

29. A barrel camber consists of

• Two straight slopes joining at the centre
• Two straight slopes with a parabolic crown in the centre
• A continuous curve either parabolic or elliptical (Ans)
• None of the above

30.A camber consisting of two straight slopes joining at the centre is called

• Barrel camber
• Sloped camber (Ans)
• Composite camber
• None of these

31.The camber recommended for water bound macadam roads in

• 1 in 24 to 1 in 30
• 1 in 30 to 1 in 48 (Ans)
• 1 in 48 to 1 in 60
• 1 in 60 to 1 in 80

32.The camber of road should be approximately equal to ………….. the longitudinal gradient

• One-half (Ans)
• Two times
• Three times
• Four times

33.The inward tilt given to the cross-section of the road surface, throughout the length of the horizontal curve, is known as

• Super-elevation
• Cant
• Banking
• All of these (Ans)

34.The raising of outer edge of the road above the inner edge is known as

• Super-elevation
• Cant
• Banking
• All of these (Ans)

35. Super-elevation is expressed as

• The difference of heights of two edges of the carriage-way to the width of the carriage-way (Ans)
• The difference of radii of curves
• The difference of the road gradients
• None of the above

36.The main advantage of providing Super-elevation is

• To decrease the intensity of stresses on the foundation
• To increase the stability of the fast moving vehicles, when they negotiate a horizontal curve
• To achieve higher speed of vehicles
• All of the above (Ans)

37.In the absence of Super-elevation on road along curves, pot holes are likely to occur at the ……………………. Of the road.

• Centre
• Outer edge (Ans)
• Inner edge

38.To prevent the overturning of a bullock cart on curves, the maximum value of Super-elevation as prescribed by the Indian Roads Congress is

• 1 in 5
• 1 in 10
• 1 in 15 (Ans)
• 1 in 20

39.The Super-elevation is

• Directly proportional to the velocity of vehicles (Ans)
• Inversely proportional to the velocity of vehicles
• Directly proportional to the width of pavement
• Inversely proportional to the width of pavement

40.If the width of carriage way is 10m and the outer edge is 40cm higher than the inner edge, then the Super-elevation required is

• 1 in 25 (Ans)
• 1 in 100
• 1 in 400
• None of these

41.The rate of rise or fall of the road surface along its length, is called

• Cant
• Super-elevation
• Gradient (Ans)
• Banking

42.If the difference of levels between two points A and B is 1 metre and their distance apart is 50     metres, the gradient is said to be

• 1 in 50 or 2% (Ans)
• 1 in 5 or 20%
• 1 in 20 or 5%
• None of these

43.The equilibrium Super-elevation is given by

• V²/R
• V²/g.R
• V²/127R (Ans)
• None of these

44.The maximum rate of Super-elevation(e) is given by

• e= V²/225R (Ans)
• e= V²/424R
• e= V²/540R
• e= V²/1000R

45.The gradient of a road depends upon the

• nature of traffic
• nature of ground
• rainfall of the locality
• all of these (Ans)

46.Roads only meant for slow moving traffic …………. Have very steep gradient.

• Must
• Must not (Ans)

47.The steepest gradient which is to be permitted on the road is called

• Maximum gradient
• Limiting gradient
• Both(a) and (b) (Ans)
• None of these

48.The value of maximum gradient for hill roads is

• 1 in 5
• 1 in 10
• 1 in 15 (Ans)
• 1 in 20

49.The suitable gradient within which the engineer must endeavour to design the road is called

• Limiting gradient
• Ruling gradient (Ans)
• Average gradient
• Exceptional gradient