Fatigue and Stress | Materials Used

Question 1

Aluminium is 1/3 the weight of steel, with ___ the strength

Answer 1

1/3

Question 2

Duralumin is used in ___

Answer 2

engine cylinders

Question 3

AlClad consists of ____

Answer 3

Thin layers of pure aluminium over a strong Duralumin core

Question 4

Copper-based alloys are used instead of zinc based, as are ___ likely to crack

Answer 4

less

Question 5

Steel and titanium alloys may be used for major ___ components

Answer 5

load bearing

Question 6

Titanium alloys are ___, __ and __ resistant, with high strength. However they are __ and ___ to work with.

Answer 6

light corrosion and temperature brittle difficult

Question 7

A composite material is one with ___ or more distinct constituents

Answer 7

two

Question 8

In aviation, a composite is taken to mean ___

Answer 8

fibes embedded in some sort of resin

Question 9

Composites can be eroded ___ easily by hail or sand, and can be ___ to repair

Answer 9

more difficult

Question 10

Composites are (not) electrically conductive

Answer 10

not

Question 11

A composite has a more ___ deterioration profile

Answer 11

gradual

Question 12

The two main classes of synthetic resin used are ___

Answer 12

• Thermoplastics

- Thermosetting resins

Question 13

Thermoplastics will soften when ___

Answer 13

heated

Question 14

Thermosetting resins will ___ when heated

Answer 14

cure

Question 15

Honeycomb construction can created ___ pieces at a very low weight

Answer 15

large

Question 16

Honeycomb construction is often used in __ ___

Answer 16

cabin floors

Question 17

The core of laminated honeycombs is made of ___, ___, or ___

Answer 17

metal, glasscloth, or Nomex

Question 18

Sandwich structural parts need ___ ___ to carry concentrated loads

Answer 18

additional provisions

Question 19

Honeycombs are good for loads involving ____

Answer 19

compression