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Q1— Section header —
1.1Choose ONE term from the list below for each of the following descriptions and rite it next to the question number (1.1.1
1.1.10\n the ANSWER BOOK. guard rails; shoulder; speed humps; manholes; earthworks; formed bitumen; scraper; side drain; density; permeability
1.1.1The ability of water to flow through soil
1.1.2Plant often used to excavate soft materials from cut and fill operations
1.1.3he result when hot water and bitumen is mixed
1.1.4The actions of moving ground to prepare for road building work
1.1.5An open longitudinal drain situated adjacent to and at the bottom of cut or fill
1.1.6The area between the outer edge of road and the boundary of the road
1.1.7Rails at the edge of the road shoulder that prevent vehicles from veering off the road into oncoming traffic
1.1.8The underground services chambers that are placed at pproximately 50 mm intervals along a storm water drain pipe system
1.1.9The mass per unit volume of a substance expressed in kg/m
1.1.10Raised devices, parabolic in shape, placed across the road to slow down traffic (10 1\ (10\
1.2Define the following term commonly used in road construction works:
1.2.1Shrinkage
1.2.2Swell
1.2.3Sag
1.2.4Chainage
1.2.5Modified materials (5 2\ (10\ [20] (12030363\20
Q2— Section header —
2.1State FIVE requirements for good road surface. (5\
2.2Define the following terms:
2.2.1Asphalt
2.2.2Bitumen
2.2.3Concrete (3 2\ (6\
2.3State FOUR different types of surfacing that can be used during the construction of road. (4\ [15]15
Q3— Section header —
3.1When placing road furniture along a road, there are important requirements that need to be adhered to. List FOUR of these requirements. (4\
3.2Explain the function of the following road furniture:
3.2.1Safety barrier
3.2.2Reflector (2 2\ (4\
3.3State ONE place where traffic light would be placed. (1\
3.4What is the purpose of planting shrub tree in the median section of a dual carriageway of highway? (1\ [10]10
Q4— Section header —
4.1Name FIVE different types of curve definition diagram (5\
4.2What is the difference between sight distance and stopping distance in relation to the setting out of a curve? (4\
4.3Give a brief description of the following terms:
4.3.1Horizontal alignment of the road
4.3.2Vertical alignment of the road (2 2\ (4\
4.4Setting out a curve is the process of locating the various points along the length of the curve. List FOUR basic method to be used when setting out horizontal curve. (4\
4.5List THREE steps to be taken when using the tangent method for setting out
4.6List FIVE components of a dumpy level. (5\ [25]25
Q5— Section header —
5.1Give TWO examples of the type of plant/machinery that can be used in each of the operation listed below:
5.1.1Compaction
5.1.2Spreading
5.1.3Hauling
5.1.4Excavation (4 2\ (8\
5.2Name TWO things to be considered when choosing the correct plant when excavating where a road is going to be constructed. (2\
5.3Give TWO consideration that must be taken into account when choosing the correct plant when materials have to be hauled
5.4Briefly explain optimum moisture content (2\ 12030363
5.5Briefly explain the purpose of the following test
5.5.1Relative density
5.5.2Sand replacement
5.5.3California bearing ratio
5.5.4Mod AAS TO (4 2\ (8\
5.6Explain what the following soil test determine:
5.6.1Shrinkage limit
5.6.2Liquid limit
5.6.3Atterberg s limit
5.6.4Plastic limit (4 2\ (8\ [30] TOTAL: 10030