Motor Trade Theory N3 — Document

April 2020 — N3 — Motor Trade Theory

N3 2020 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 6 pages 📝 37 items found

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Questions — A Preview of What to Expect in the Document

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 —

1.1

1.2Calculate the compression ratio of an engine with an air standard efficiency of 65%. (6\

1.3State SIX mechanical defects which may cause a decrease in volumetric efficiency. (6\

1.4.1List THREE advantages of L Head Valve arrangements. (3\

1.4.2Name TWO disadvantages of L Head Valve arrangements (2\ [25] QUE STION Indicate w25

2.10\ in the ANSWER BOOK.

2.1To be appointed as a receptionist at a garage the person has to be a qualified motor mech anic.

2.2Reporting incidents help to reduce accidents at the workplace.

2.3With regard to the Health and Safety Regulations employees must purchase their own protective clothing as required by the employer.

2.4Everyone working in the wor ksho p should have access to the tool store.

2.5All tools and equipment should be recorded in an inventory.

2.6There must be no existing competition when selecting and planning for a new service station.

2.7One of the safety precauti ons for a grinding machine is that the user shall provide every machine with a transparent unbreakable shield.

2.8Effective ventilation is necessary when welding or soldering is done

2.9hange rooms in good condition must be provided fre f charge by th employer.

2.1010

Q3— Section header —

3.10\ in the ANSWER BOOK. COLUMN A COLUMN B

3.10The pump and turbine are components mount of air that can be passed through the engine per minute s not use a st eering box Efficiency with which released

Q4— Section header —

4.1Briefly explain the operation of a hydraulic valve lifter.

4.2Name th e clutch and brake band engagements made under each of the following conditions:

4.2.1Second gear

4.2.2Third gear

4.2.3

4.3Draw a labelled sectional view of the hydraulic cyli nder of a link type power steering system. (10\

Q5— Section header —

5.1FIGURE 1 shows a sectional sketch of a torque converter. Identify the marked components by writing the answer nex t to the question number (5.1.1

5.1.6\ in the ANSWER BOOK. (6\ Fig ure 5,2 Describe the operation of a torque converter in an accelerating vehicle. (6\ Name THREE types of pressure in an automatic gearbox. (3\

Q6— Section header —

6.1FIGURE 2 show s a sectioned view f a limited slip d ifferential FIGURE 2

6.1.1Identify the marked components by writing the answer next to the letter (A E\ in the ANSWER BOOK. (5\

6.1.2Expla in the operation of the limited slip differential when the left driving eel moves o n a slippery surface. (5\

6.2State each of the following regarding an epicyclic gear set in contrast with a conventional gear set:

6.2.1THREE advantages

6.2.216

Mark Allocation

Total100 marks

Sections25 + 10 + 10 + 24 + 15 + 16 = 100 marks

Paper information

TitleDocument

SubjectMotor Trade Theory

LevelN3

Document typeQuestion paper

Year2020

MonthApril

Pages6

Downloads4

Examination context

Decade2020s

Years ago6y

SeasonAutumn (SH)

Start dayWednesday

Exam periodApril 2020

Days since exam2,384

About Motor Trade Theory 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.

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File size244.4 KB

Pages6

Archived on8 September 2026

File age46d

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