Aircraft Maintenance Theory N1 — Document

April 2020 — N1 — Aircraft Maintenance Theory

N1 2020 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 54 items found

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Q1— Section header —

1.15\ in the ANSWER BOOK

1.1before flight inspection must be done within eight hours before the aircraft's next flight.

1.2The illustrated parts catalogue provides instruction on how to repair structures on aircraft.

1.3The air pressure at high altitudes is less dense than the air pressure at lower altitude thus aircraft can fly more economical at high altitudes.

1.4The empennage is a cone found on the front of the fuselage to which the horizontal stabilisers are attached.

1.5Parasite drag is caused by any exp osed object which offers resistance to airflow.

1.6Surface corrosion is identified by powdery deposits on the surface of the components.

1.7In the semi monocoque fuselage construction the skin carries all the primary stresses.

1.8The colour of synthetic hydraulic oil is red.

1.9The purpose of the standpipe in hydraulic reservoirs is to allow sufficient quantities of fluid for emergency purposes.

1.10The function of accumulators is to supply fluid under pressure to compensate for s mall external leaks.

1.11The purpose of the fuel system is to supply dirty fuel to the fuel control unit.

1.12The purpose of the cyclic pitch control on helicopters is to tilt the tip path plane of the rotor blade.

1.13Inlet valve stems cont ain a salt that serve as a cooling agent.

1.14The c entrifugal flow compressor of gas turbine engine consist of an impeller and diffuser.

1.1515

Q2— Section header —

2.1Describe t he following aircraft maintenance schedules:

2.1.1Bulletins

2.1.2Maintenance manuals

2.1.3

2.2Explain when, how and why a duplicate inspection is carried out. (6\

2.3Make neat labelled sketches to explain each of the following aircraft terms:

2.3.1Angle of attack

2.3.2Angle of incidence

2.3.3Fine ss ratio

2.3.420

Q3— Section header —

3.1Define the following terms, with the aid of sketches:

3.1.1Boundary layer

3.1.2

3.2Name any THREE corrosion prone areas on aircraft. (3\

3.3Name THREE stresses that structural members are subjected to during flight. (3\ [10]10

Q4— Section header —

4.1Piston type accumulator (5\

4.2Double acting hand pump (5\ [10]10

Q5— Section header —

5.1Name FIVE basic components of an airframe fuel system. (5\

5.2Make neat labe lled sketches of the following functions of helicopters:

5.2.1Angle of attack

5.2.2Axis of rotation

5.2.3Disk area

5.2.4Disk loading

5.2.515

Q6— Section header —

6.1Exhaust valve (indicate the cooling element\ (3\

6.2Recessed type piston head (3\

6.3Single throw radial engine crankshaft (5\

6.4Opposed or flat type cylinder arrangement (2\

6.5Single row, radial type cylinder arrangement (2\ [15]15

Q7— Section header —

7.1

7.2Make neat labelled sketches of THREE types of combustion chambers used on gas turbine engines. (5\ [15] TOTAL:15

Mark Allocation

Total100 marks

Sections15 + 20 + 10 + 10 + 15 + 15 + 15 = 100 marks

Paper information

TitleDocument

SubjectAircraft Maintenance Theory

LevelN1

Document typeQuestion paper

Year2020

MonthApril

Pages5

Downloads3

Examination context

Decade2020s

Years ago6y

SeasonAutumn (SH)

Start dayWednesday

Exam periodApril 2020

Days since exam2,383

About Aircraft Maintenance 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

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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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