Carpentry And Roof Work NCV Level 2 — Document
November 2018 — NCV Level 2 — Carpentry And Roof Work
NCV Level 2
2018
NCV Engineering
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Q1— Section header —
1.1n carpentry, certain hand tools are used to construct roofs. Name at least FIVE important hand tools and write down what each tool is used for. (5\
1.2Give ONE word or term for each of the following descriptions. Write only the word or term next to the question number (1.2.1 1.
2.5\in the ANSWER BOOK.
1.2.1Timber sections fixed across the top chords at a spacing of up to 150 mm to carry the metal or fibre cement sheeting
1.2.2timber member that is similar to battens but fixed to the bottom chord to support the ceiling
1.2.3A person who is qualified by training and experience to design, erect, manufacture or inspect roof trusses
1.2.4A double pitched truss with sloping bottom chords
1.2.5
1.3Make neat sketch es of FIVE different types of roof trusses. Each sketch must clearly indicat the width of the timber members.
Q2— Section header —
2.1Load means the heavy objects or materials that a roof structure has to support or carry. Give THREE examples of dead loads in roof structure. (3\
2.2Name TWO criteria that are used for roof design. (2\
2.3What is the maximum span cove ed by each of the following wall plate size s:
2.3.1
2.2.3
2.3.3
2.4Give TWO examples of when it would be necessary to support wall plate on the outermost skin of the brickwo rk (2\
2.5Indicate whether the following statements are TRUE or FALSE. Ch oose the answer and write only ' rue ' or ' alse
2.5.10\the ANSWER BOOK.
2.5.1Wall plates are always supported on the outermost skin of brickwork.
2.5.2An example of a rationally designed roof truss is one using connecting plate
2.5.3The wedges used as packing when levelling the trusses must be at least the same width as the wall plate.
2.5.4Battens and purlins are fixed to the rafters in the same way.
2.5.5Empirical deemed to satisfy rules are based on observation, experience and proven success.
2.5.6A roof should allow the accumulation of water on its surface.
2.5.7ang nail plates can only be used with butt joints.
2.5.8Roof anchors must be more than 200 mm from each other measur ed sideways.
2.5.9
2.5.10
2.6State TWO negative consequences of not handling and storing roof trusses correctly. (2\
2.7.1Name the product that was used in the past to stop insects from eating wood
2.7.2Name the product that is currently used to protect wood against insects. (2 x 1\ (2\
2.8Name THREE devices that crane makes use of to lift heavy trusses and state the conditions for which each device
2.9.1Give TWO disadvantages of nail plate connections
2.9.2Give TWO advantages of Bolted connections (2 x 2\ (4\ (12020122\
2.10ou must follow certain rules when you build a roof truss. These rule s are laid down in the National Standard SANS 10400. The roof covering is also classified in the table. Name the roof covering that is
2.10.1Class A
2.10.2Class B
2.10.3
2.11Describe TWO methods of securing purlins to rafters (2
2.12Describe the term bracing with reference to roof constructi (1\ [40]40
Q3— Section header —
3.1Name the parts of the truss in FIGURE 1 below. Write only the answer nex t to the question number (3.1.1
3.1.5\the ANSWER BOOK. FIGURE 1 (5\
3.2Write down formula to calculate the rise in the truss. (1\
3.3Name the tool that is used to mark a plumb cut. (1\
3.4Building a roof truss is a process with three steps. riefly explain the THREE steps
3.1.1(12020122\ NC380 (E\ (N22\ Copyright reserved Please turn over
Q4— Section header —
4.1Ten steps need to be followed when erecting trusses. The steps in COLUMN B below a re not in the correct sequence. Rearrange the steps in the correct sequence. Write only the letter (A J\ next to the question number
4.1.10\the ANSWER BOOK. OLUMN A STEPS COLOMN B
4.1.7.1.8
4.2Complete the following sentences by using the words given in the list below. Write only the word or word s next to the question number (4.1.
4.1.10\in the ANSWER BOOK. brace; surface; timber; load; roof; top; area; weight; wall; foundations; level A wall plate is a strip of (4. (4.
4.3Various options are giv en as possible answers to the following questions. Choose the answer and write only the letter (A D\ next to the question number (4.3.1
4.3.5\n the ANSWER BOOK.
4.3.1he maximum truss spacing for ribbed metal sheeting using 76 mm 50 mm purlin on edge
4.3.2
4.3.3
4.3.4he maximum truss spacing for concrete tiles using 38 mm 38 mm battens
4.3.5he maximum distance that a roof ancho r can be positioned from a truss 100 mm
4.4The term packing and caulk is always used during the levelling of wall plate xplain packing and caulk in
4.5Temporary bracin g is attached to truss to keep it plumb and positioned. Describe where and how you would attach this brac ing (3\ [30]30
Mark Allocation
Total100 marks
Sections20 + 40 + 10 + 30 = 100 marks
Paper information
TitleDocument
SubjectCarpentry And Roof Work
LevelNCV Level 2
Document typeQuestion paper
Year2018
MonthNovember
Pages7
Downloads6
Examination context
Decade2010s
Years ago8y
SeasonSpring (SH)
Start dayThursday
Exam periodNovember 2018
Days since exam2,900
About Carpentry And Roof Work examination preparation
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