Roads NCV Level 4 — Document P1
November 2018 — NCV Level 4 — Roads
NCV Level 4
2018
NCV Engineering
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Q1— Section header —
1.1Indicate whether the following statements are TRUE or FALSE. Choose the answer and write only 'True' or 'False' next to the question num ber (1.1.1
1.1.10\the ANSWER BOOK.
1.1.1Longitudinal drains are found alongside a road and between lanes running in opposite direction
1.1.2A culvert is normally used to channel water beneath a road, ra ilroad and embankment, from the upper side to the downstream side of the road.
1.1.3The purpose of sub surface drainage is to collect and direct water and exc ess moisture away from the underlying layers of the road.
1.1.4Manhole s are services or inspection cambers found at regular intervals along below ground storm water drain
1.1.5The trenches for slotted pipes are dug at depths of less than 00 mm below the surface of the road
1.1.6and blast ing is a thin l ayer of fi ne sand under the road layers used collect and convey seepage water.
1.1.7A transverse fall is t a crosswise direction and at right angle to the long axis f the road surface
1.1.8Aquaplaning occurs when a thin la yer of water builds up between the tyres and surface of the road
1.1.9drain s are used in flat environment where there is plenty of room to incorporate a shallow roadside
1.1.10Geofabric material allows water and moisture in soil to seep through the material without the soil being compromised. (10 1\ (10\
1.2To prevent the erosion and d eterioration of underlying road layers caused by water one needs to design and construct a efficient sub surface
1.2.1 Explain how sub surface drainage systems need to be constructed.
1.2.2 Name THREE typ of material that can be
1.3he e rosion of underlying road layers caused by various sources of water can be a major problem to the underlying road layers as well as to the road surface.
1.4Describe what a sand blanket is and what it is used for. (2
1.5Gabions can be used for a number of purposes when doing road construction works. State FOUR purposes of gabions when used in road construction work s. (4\
1.6Identify THREE road carriageway / surfacing problems that can arise due to badly designed and damaged roads. (3\ [30]30
Q2— Section header —
2.1Define the term base course in relation to flexible pavement. (2\
2.2Name FIVE important stages to follow when building a labour intensive concrete pavement. (5\
2.3It is important to know which type of block paving should be used on a specific road. The table below shows different concrete thickness for paving blocks, whereas the required application or use
2.3.1< 40mm thickness
2.3.250 55mm thickness
2.3.360mm thickness
2.3.470 80mm thickness
2.3.5> 100mm thickness (2 5\ (10\
2.4Name FOUR types of equipment that will be required when conducting bitumen penetration test
2.5Jointing / grouting sand is required to resist certain stresses whe n used between the paving blocks. What are TWO of these types of stress that jointing sand is required to resist. (2\
2.6Give FIVE functions of edge restraints (kerbs\ when used in concrete block paving. (5\
2.7List FIVE personal protective eq ipment that must be worn when working with heated bitumen. (5\
2.8Name FOUR properties of bitumen. (4\
2.9What are the THREE primary materials used to produce single seal? (3\ [4 0] 12030534
Q3— Section header —
3.1State FIVE reasons why road reserve needs continuous maintenance
3.2What are the THREE main causes of edge breaks developing on a road surface (3\
3.3The surfacing layer of a sphalt road surface may be exposed to minor damage that may cause so me problems that need to be attended to when not
3.4Give TWO reasons why a pothole can increase in size and depth? (2
3.5Describe TWO basic measures that need to be foll owed when sealing cracks on asphalt road surface (2\
3.6What safety and precautionary measures need to be in place to ensure that traffic will move safely and securely through an area where road works is in progress (2\
3.8State THREE ways that recycled asphalt can be used for rehabilitation or reconstruction of asphalt surfacing. (3\ 3. Describe each one of the following types of road furniture and
Mark Allocation
Total100 marks
Sections30 + 30 = 60 marks
Paper information
TitleDocument
SubjectRoads
LevelNCV Level 4
Document typeQuestion paper
Year2018
MonthNovember
Pages5
Downloads3
Examination context
Decade2010s
Years ago8y
SeasonSpring (SH)
Start dayThursday
Exam periodNovember 2018
Days since exam2,901
About Roads examination preparation
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