1) Non heat treatable aluminium alloys Report

Can be hardened by strain hardening

Cannot be softened

Cannot be hardened

2) Solution treatment after manufacturers have performed it once can be carried out a further Report

1 time

2 times

3 times

3) Following solution treatment aluminium alloy can be placed into service Report

after 5 days

straight away

after 24 hours

4) The time between removal from heat treatment furnace and quenching must be not more than Report

3 seconds

7 seconds

10 seconds

5) When buffing surface of Aluminium Alloy, what material are you removing?. Report

Oxide layer

Aluminium

Alloy

6) Why is clad alloy preferred to pure Aluminium? Report

Less brittle

More ductile

Tougher

7) Why are aluminium alloys used on aircraft, instead of pure aluminium? Report

Stronger

Lighter

Corrosion resistant

8) The magnesium alloys used in aircraft can be recognized by Report

shiny surface due to chromium plated on the surface

yellowish surface due to protective treatment

silver surface due to protective coating

9) Age hardening of aluminium is Report

never carried out

a gradual hardening over a period of time

not necessary

10) Alclad is Report

aluminium with duralumin cladding

duralumin with aluminium coating

duralumin with magnesium cladding

11) The oxide film on the surface of aluminium is Report

hard and porous

porous

non porous

12) The process of forming a pure layer of aluminium over an aluminium alloy is Report

metalizing

cladding

electroplating

13) Titanium can be identified by placing it on a grinding wheel and looking for Report

Red Sparks

Yellow Sparks

White Sparks

14) The critical process of heat treatment is Report

temperature, method of heating and cooling

temperature and method of heating only

method of heating only

15) Re-treatment of aluminium alloys can be performed by Report

alocrom treatment

brushing on phosphate treatment followed by paint

selenious acid treatment

16) What is generally true for titanium alloy? Report

It is stronger than the aluminium

It is stronger than the steel

It has lower density than magnesium

17) Malleable materials are Report

easy to forge

easy to cast

highly ductile

18) If a material has to undergo deep cold forming operation. The essential property would be Report

ductility

malleability

elasticity

19) The metal which must not be heated in a salt bath is Report

magnesium alloy

duralumin

rivets made of alclad

20) The colour code on sheet metal indicates Report

only the specification of the material

the spec and gauge of the material

that the material is from an approved source

EASA Questions Module 6: Materials Set 2: Materials - Ferrous

Set 1: Materials - Ferrous

Set 2: Materials - Ferrous

Set 3: Materials - Non-Ferrous

Set 4: Composite & Non-Metal

Set 5: Wooden Structures

Set 6: Fabric Covering

Set 7: Corrosion

Set 8: Screw Threads

Set 9: Bolts, studs & screws

Set 10: Locking devices

Set 11: Rivets

Set 12: Pipes and Unions

Set 13: Bearings

Set 14: Transmissions

Set 15: Control Cables

Set 16: Electrical Cables