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Width of the shoulders of carriage way is generally kept
125 cm
200 cm
100 cm
150 cm
250 cm
Concrete pavement is provided if daily traffic per lane exceeds
1250 tonnes
750 tonnes
1300 tonnes
500 tonnes
1000 tonnes
In case of cement concrete pavements, pick up the incorrect statement
initial cost of construction is low
None of these.
tractive resistance is low
visibility during nights is high
initial cost of construction is high
Newly constructed pavement with ordinary Portland cement attains its working strength after
7 days
28 days
21 days
14 days
42 days
The statement, regarding the size of stones used at the wearingsurface.
"The size of a stone used on a road must be in due proportion to the space occupied by a wheel of ordinary dimensions on a smooth levelsurface.
The point of contact will be found to be longitudinal about 2.5 cm and every piece of stone put into the road which exceeds 2.5 cm in any of its dimension is mischievious" was made by
Macadam
Tresguet
Sully.
Telford
If the radii of a compound curve and a reverse curve are respectively the same, the length of common tangent
of compound curve will be more
of reverse curve will be more
None of these.
of both curves will be equal
To prevent a head-on-collision of vehicles travelling in opposite directions along four-lane roads
area dividers are provided
medians of wide area are provided
markings on the road are provided
physical dividers are provided
None of these.
Hill roads are
provided camber along spur curves
seldom provided a camber
None of these.
provided camber along valley curves
Minimum radius of a simple circular curve deflecting through 5°, is
1718.9 m
1817.9 m
1618.9 m
1816.9 m
If present
A.D.T. is 5000 vehicles and annual increase is 10%, the average future flow after 5 years will be
7050 vehicles
6050 vehicles
9050 vehicles
8050 vehicles
The width formation of a road means the width of
carriageway
embankment at ground level
embankment at the top level.
pavement and shoulders
The desirable camber for straight roads with thin bituminous surfacing, is
1 in 160 to 1 in 140
1 in 33 to 1 in 25
None of these.
1 in 40 to 1 in 33
1 in 150 to 1 in 140
The desirable camber for straight cement concrete roads, is
1 in 33 to 1 in 25
1 in 160 to 1 in 140
None of these.
1 in 150 to 1 in 140
1 in 40 to 1 in 33
Traffic engineering only includes
analysis of traffic characteristics
design and application of control devices
traffic opeation
All the above.
planning of regulatory measures
According to the recommendations of Nagpur Conference, the width formation of an ideal National Highway in hard rock cutting, is
7.9 m
7.5 m
8.9 m
6.9 m
6.5 m
To ensure that bullock carts may not overturn on curves, the maximum value of super-elevation, recommended by
I.R.C., is
1 in 25
1 in 12
1 in 10
1 in 15
1 in 20
In ideal pavement is constructed with
tar
Portland cement concrete
Bricks
None of these.
hard soil
The tangent length of a simple circular curve of radius R deflecting through θ°, is
R tan θ/2
R cot θ/2
R sin θ
R tan θ
R sin θ/2
Deviation of the alignment of a trace cut may be permitted in areas involving
Dens
sand dunes
land slides
None of these.
Three points, A, B and C 500 m apart on a straight road have 500 m, 505 m and 510 m as their reducedlevels.
The road is said to have
a negative gradient between A and C
a positive gradient between A and C
a positive gradient between A and B followed by a negative gradient between B to C.
a negative gradient between A and B
no gradient between A and C
1
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