Aircraft Metalwork Theory N2 — Document

August 2018 — N2 — Aircraft Metalwork Theory

N2 2018 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 43 items found

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Q1— Section header —

1.5\in the ANSWER BOOK.

1.5When using a Huck rivet machine to install rivets with different diameters the shift operating pressure should also be adjusted

Q2— Section header —

Q3— Section header —

3.1Describe the following properties of metals used in the aircra ft industry

3.1.1Elasticity

3.1.2Density

3.1.3Hardness (3 2\ (6\

3.2List FOUR advantages of using pure aluminium for the manufacturing of aircraft structures. (4\

3.3Indicate THREE reasons why itanium is heat tr eated before it is used in the aircraft industry.

3.4Explain the reason for the chemical spot test. (2\ [15]15

Q4— Section header —

4.1Aluminium surfaces that we re subsequently p ainted can be exposed to more severe cleaning procedur es and can also be given more thorough corrective treatment prior to painting. Describe FOUR

4.2Expl ain the following on dissimilar corrosion

4.2.1Identification (2\

4.2Treatment (3\

4.3Define stress corrosion (4\ [17]17

Q5— Section header —

5.1Make sketches of the following rivet joints

5.1.1Single riveted lap joint

5.1.2Double riveted lap joint

5.1.3Single splice plate

5.1.4Dou ble sp ice plate (4 2\ (8\

5.2An improper made countersink reduces the strength of a flush riveted oint and may cause failure. With THREE sketches explain the following rivet countersinking

5.2.1Preferred countersinking

5.3.2Permissible countersinking

5.3.3Unacceptable countersinking (3 2\

5.3Complete the following table on Cleco fasteners . Write only the answers next to the question numbers (

5.3.6in the ANSWER BOOK. RIVET (INCHES\ DRILL CL ECO COLOUR 3/32

5.3.35/32

5.3.1#30

5.3.4#12

5.3.2Copper Black

5.3.6(6 1\ (6\ [20]20

Q6— Section header —

6.1Name TWO types of drill bush holders.

6.2Describe the procedure for a flush patch repair on a stres sed skin construction. (10\

6.3During the shrinking process, metal is forced or compressed into a smaller area. This process is used when the length of a piece of etal es pecially on the inside of a bend

6.3.1Name the tools used for shrinking metal.

6.3.2escribe the process of shrinking metal. (2 + 4\ (6\ 18

Q7— Section header —

Q8— Section header —

Mark Allocation

Total100 marks

Sections5 + 15 + 15 + 17 + 20 + 5 + 5 = 82 marks

Paper information

TitleDocument

SubjectAircraft Metalwork Theory

LevelN2

Document typeQuestion paper

Year2018

MonthAugust

Pages5

Downloads6

Examination context

Decade2010s

Years ago8y

SeasonWinter (SH)

Start dayWednesday

Exam periodAugust 2018

Days since exam2,993

About Aircraft Metalwork Theory examination preparation

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A practical revision approach

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