1. What is the longitudinal slope called?
a) Kerb
b) Horizon
c) Grade
d) Lift
Explanation: The grade (also called slope, incline, gradient, mainfall, pitch or rise) of a physical feature, landform or constructed line refers to the tangent of the angle of that surface to the horizontal. It is a special case of the slope, where zero indicates horizontality. A larger number indicates higher or steeper degree of “tilt”. Often slope is calculated as a ratio of “rise” to “run”, or as a fraction (“rise over run”) in which run is the horizontal distance and rise is the vertical distance.
2. A ________ is a thoroughfare, route, or way on land between two places that has been paved or otherwise improved to allow travel by foot or some form of conveyance, including a motor vehicle, cart, bicycle, or horse.
a) harbour
b) hole
c) lift
d) road
Explanation: Roads consist of one or two roadways (British English: carriageways), each with one or more lanes and any associated sidewalks (British English: pavement) and road verges. In the Netherlands there is often a Protected Bicycle Path provided for cycling.
Roads available for use by the public may be referred to as parkways, avenues, freeways, interstates, highways, or primary, secondary, and tertiary local roads.
3. The vertical alignment of a road, expressed as a series of grades, connected by parabolic curves is called ___________
a) curb
b) cant
c) profile
d) curve
Explanation: The profile of a road consists of road slopes, called grades, connected by parabolic vertical curves. Vertical curves are used to provide a gradual change from one road slope to another, so that vehicles may smoothly navigate grade changes as they travel.
Sag vertical curves are those that have a tangent slope at the end of the curve that is higher than that of the beginning of the curve. When driving on a road, a sag curve would appear as a valley, with the vehicle first going downhill before reaching the bottom of the curve and continuing uphill or level.
4. ____________________ is the road alignment specification which provides a substantially clear line of sight so that the driver of a vehicle.
a) Stopping sight distance
b) Safe sight distance
c) Corner sight distance (CSD)
d) Intersection sight distance
Explanation: Bicyclist or pedestrian waiting at the crossroad may safely anticipate the driver of an approaching vehicle. Corner sight provides an adequate time for the waiting user to either cross all lanes of through traffic, cross the near lanes and turn left, or turn right, without requiring through traffic to radically alter their speed.
5. Typical lane widths range from ______ metres to _____ metres.
a) 1, 2.4
b) 10, 12.6
c) 3, 3.6
d) 8, 8.6
Explanation: Wider lanes and shoulders are usually used on roads with higher speed and higher volume traffic, and significant numbers of trucks and other large vehicles. Narrower lanes may be used on roads with lower speed or lower volume traffic.
Narrow lanes cost less to build and maintain, but also reduce the capacity of a road to convey traffic. On rural roads, narrow lanes are likely to experience higher rates of run-off-road and head-on collisions. Wider roads increase the time needed to walk across and increase storm water runoff
6. Metalling of road usually consists of ______ layers of coats.
a) 5
b) 3
c) 2
d) 6
Explanation: The soiling coat, inter coat and top coat. The metal may be stone ballast, brick ballast, kankar, etc. The inter coat and top coat are made with 12 cm (4 1/2 ”) thick layer loose compacted to 8 cm (3”). The soiling coat may be of brick flat or brick on edge, or of stone boulder or of same type as for the inter or top coat if the sub-soil is good, or may be of greater. The top or wearing coat may also be of cement concrete bituminous.
7. Calculate the quantity of metal required for a 3.70 m wide Macadam road for one kilometre length for one layer of 8 cm compacted thickness.
a) 444 cu m
b) 565 cu m
c) 454 cu m
d) 765 cu m
Explanation: Quantity of metal (loose) = 1000 m*3.70m*12 cm = 1000*3.70*.12=444 cu m
Volume of loose metal gets reduced 1/3 on compaction.
8. Calculate the number of standard modular bricks required for flat brick soiling for one kilometre length of 4.00 m wide road.
a) 2.4 Lakhs of bricks
b) 2.2 Lakhs of bricks
c) 6.3 Lakhs of bricks
d) 7.7 Lakhs of bricks
Explanation: No. of bricks for flat soling = 1000*4.00 *55 = 220,000 nos. = 2.2 Lakhs of bricks @55 nos. per sq m. For Traditional bricks 22.9*11.4*7.6(9”*4 1/2”*3”).
9. Find the area of permanent land required for a State Highway for one kilometre length, the width of permanent land being 30 m.
a) 0.5 hectare
b) 3 hectare
c) 4 hectare
d) 6 hectare
Explanation: Permanent land = 1000 *300 = 30000 sq m = 30000/10000 = 3 hectare.
10. Find the area of temporary land required for one kilometre length of a road from the following data.
a) 32.50 m
b) 76.89 m
c) 39.50 m
d) 45.50 m
Explanation: Quantity of earthwork in embankment = (Bd+sd2)*length = (10*1.5+2*1.52)*1000=19.5*1000=19500
Area of temporary in embankment land=(19500)/(depth of borrowpit)=19500/0.30=65000 sq m
65000/10000=6.5 hectare
Width of temporary land = Area /Length = 65000 sq m/10000 = 65 m
Width of temporary land on either side = 65/2 = 32.50 m.