Mechanotechnology N3 — Document
August 2021 — N3 — Mechanotechnology
N3
2021
Nated Engineering
Preparing document
📋 Document Analysis
See full analysis
Questions — A Preview of What to Expect in the Document
47
This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.
Q1— Section header —
1.1A 16N SPB wedge belt is fitted between an elect rical motor and a hammer mill. The following information is given: Design power of the electric motor 60 kW Correction factor
1.1.1The power of the electric motor. (2\
1.1.2Corrected power per belt. (3\
1.1.3The number of belts driving the mill. (3\
1.2Couplings are classified into 3 groups. Name them (3\
1.3Refer to F IGURE 1 below of a gear tooth terms and label the different parts (A E\, as indicated. Write only the answers next to the letter (A E\ in the ANSWER BOOK
1.4Refer to FIGURE 2 (below\ of a multi disc clutch and labe l the different parts (A C\, as indicated. Write only the answers next to the letter (A C\ in the
Q2— Section header —
2.1A brake is a device operated by electromagnetic hydraulic, air pressure, mechanic al means. State FOUR functions of a brake in a vehicle or machine. (4\
2.2Give TWO advantages of electromagnetic braking system (2\ [6]6
Q3— Section header —
3.1Name THREE types of loads applicable to anti friction bearings (3\
3.2Name FIVE types of friction bearings. (5\ [8] 81903738
Q4— Section header —
4.1Indicate whether the following statements are TRUE or FALSE by writing only 'True' or 'False' next to the question number (4.1.1
4.1\ in the ANSWER BOOK. Give ONE reason for each answer.
4.1.4In a piston pump the length of a piston is longer than its stroke. For external packing in a plunger or piston pump, it is possible to replace or adjust the packing without o pening the pump. Pumps with internal packing are suitable only for pure clean fluids
4.1.6
4.2Give THREE reasons why it is necessary for a welding machine to be kept cool. (3\
4.3Apart from the use of an oil can or grease pot to lubricate machinery, list FIVE other methods that ca n be used to apply lubrication on machine parts and components. (5\ [14]14
Q5— Section header —
5.1A ram of a hydraulic press can exert a force of 13 000 N if a force of 250 N is exerted on a piston. If the diameter of th e pisto n is 70 mm alculate the following:
5.1.1The diameter of the ram in mm. Round your answer to THREE decimal places (4\
5.1.2The pressure in the fluid in kPa. (3\
5.2Make neat drawings of the ISO symbols as applicable to pneumatic systems of the following:
5.2.1A compressor
5.2.2A filter
5.2.3A pressure gauge
5.211
Q6— Section header —
6.1Label the different parts of a carburettor (A C\ in FIGURE 3 below . W rite the
6.2Define the term compression ratio , in reference to internal combustion engines. (2\ [5]5
Q7— Section header —
7.1Briefly describe THREE advantages of the infrared signal remote control when compared to the driver's cabin on the overhead crane. (3\
7.2Label the different parts of a tower crane mounted on a bogie (A E\ in FIGURE 4 below Writ
8.1Indicate whether the following statements are TRUE or FALSE by writing only 'True' or 'False' next to t he question number (8.1.1
8.1.2\ in the ANSWER BOOK.
8.1.1Durability can be considered as a characteristic of thermosetting plastics.
8.1.2
8.2Explain what is meant by tensile strength as a property of metal. (2\
8.3State FOUR properties of thermosetting plastics (4\ [8] QUESTION 9: INDUSTRIAL ORGANISATION AND PLANNING8
9.1List FIVE listen ing skills that can improve the effectiveness of the communication process. (5\
9.2Upward communication is the flow of information from subordinates to management. Give FIVE reasons why management relies on upward communication. (5\
9.3Br iefly explain what is meant by diagonal communication. (2\ [12] QUESTION 10: ENTREPRENEURSHIP12
10.1List SIX basic qualities that an entrepreneur sh ould have in order to stand a chance in the small business enterprise. (6\
10.2Briefly describe the term service business as a business opportunity for a small business enterprise sector. (3\ [9] TOTAL: 100 81903739
Topics Identified
3
Business EnvironmentsLeadershipBusiness Plan
Mark Allocation
Total100 marks
Sections19 + 6 + 8 + 14 + 11 + 5 + 8 + 8 + 12 + 9 = 100 marks
Paper information
TitleDocument
SubjectMechanotechnology
LevelN3
Document typeQuestion paper
Year2021
MonthAugust
Pages10
Downloads3
Examination context
Decade2020s
Years ago5y
SeasonWinter (SH)
Start daySunday
Exam periodAugust 2021
Days since exam1,898
About Mechanotechnology examination preparation
This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.
How to use this resource for revision
A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?
For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.
understanding question requirements
applying subject knowledge
working under time constraints
checking answers
identifying revision priorities
A practical revision approach
Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.
File details
File size479.8 KB
Pages10
Archived on8 September 2026
File age47d
ContributorFreeMode
Fingerprint32903E246FA1
Questions and learner discussion
Log in to ask a question or leave a review.
No questions or discussions have been posted yet.