Deck 4: Road Design and Engineering

Question 1

The camber recommended for water bound macadam roads in

A)1 in 24 to 1 in 30
B)1 in 30 to 1 in 48
C)1 in 48 to 1 in 60
D)1 in 60 to 1 in 80

Answer 1

1 in 30 to 1 in 48

Question 2

The California bearing ratio (CBR) method of flexible pavement design gives an idean about

A)the quality of road making material
B)the traffic intensities
C)the characteristics of soil
D)all of these

Answer 2

the quality of road making material

Question 3

In snow-bound sections, the super-elevation on roads should not be more than

A)7%
B)8%
C)9%
D)10%

Answer 3

7%

Question 4

The tongue and groove type of longitudinal joint do not help to control the differential uplift between the two adjacent edges.

A)Right
B)Wrong

Question 5

An ideal vertical curve is a cubic spiral.

Question 6

According to Telford

A)the size of stone at the centre varied from 160 mm to 200 mm and gradually decreased to 75 mm to 125 mm towards the haunches
B)the central 6 metre width of the road was covered with two layers of stones about 100 mm and 50 mm respectively
C)the size of stone used was of 63 mm diameter
D)all of the above

Question 7

Weight of a vehicle affects

A)passing sight distance
B)extra widening
C)pavement thickness
D)width of lanes

Question 8

Which of the following statement is correct?

A)The sub-grade strength has only little influence upon the structural capacity of the rigid pavement.
B)The major factor in the design of rigid pavements is the flexural strength of concrete.
C)The temperature variations due to changes in atmospheric conditions do not produce stresses in flexible pavements.
D)all of the above

Question 9

A curve whose radius gradually changes from an infinite value to a finite value or vice-versa for the purpose of giving easy change of direction of a road, is called a

A)circular curve
B)transition curve
C)simple curve
D)compound curve

Question 10

Rolling terrain is a terrain with cross-slope of

A)upto 10%
B)10 to 25%
C)25% to 60%
D)greater than 60%

Question 11

At the end of the reconnaissance phase, the selected alignment is pegged by using about 2m high poles on which the

A)number of peg is marked
B)direction of proposed alignment is marked
C)distance between the two pegs is marked
D)all of these

Question 12

The width of parking spaces is effected by the

A)width
B)length

Question 13

Formation width on straights for motorable road carrying a total load less than 100 tonnes per day, is

A)3 to 4.5 m
B)4.5 to 5 m
C)5 to 7.25 m
D)none of these

Question 14

In scanty rainfall areas, the camber provided will be

A)flatter
B)steeper
C)zero
D)none of these

Question 15

Traffic engineering deals with the

A)traffic operation
B)design and application of control devices
C)analysis of traffic characteristics
D)all of these

Question 16

The main disadvantage of concrete roads is that

A)the initial cost is high
B)it requires skilled personnel for construction
C)it requires cautious handling of the material
D)all of the above

Question 17

For design purposes, average daily traffic should be considered.

Question 18

The main advantage of providing super-elevation is

A)to decrease the intensity of stresses on the foundation
B)to increase the stability of the fast moving vehicles, when they negotiate a horizontal curve
C)to achieve higher speed of vehicles
D)all of the above

Question 19

The universally recognized factor which affects the flexible pavement design, is the

A)characteristics of the natural soil which underlies the pavement
B)volume and character of traffic that will use the highway
C)drainage condition of the area
D)all of the above

Question 20

A track of width 1 to 1.2 m constructed along the selected alignment to facilitate access to the area for inspection and detailed survey is known as

A)inspection trace
B)terrain
C)trace out
D)all of these

Question 21

In detailed survey of a hill road, the interval for plotting the contours at sharp curves is generally

A)1 m
B)2 m
C)4 m
D)6 m

Question 22

The grand trunk (G.T.) road was constructed during

A)1440 to 1445 A.D.
B)1540 to 1545 A.D.
C)200 to 2500 B.C.
D)2500 to 3000 B.C.

Question 23

The transverse contraction joints in unreinforced concrete pavements are provided at much closer intervals than the expansion joints.

A)Agree
B)Disagree

Question 24

The transverse joint may be a

A)expansion joint
B)contraction joint
C)warping joint
D)all of these

Question 25

The Indian Roads Congress (I.R.C.) was set up in

A)1930
B)1934
C)1948
D)1956