問題一覧
1
False
2
False
3
Stress
4
strain
5
strain
6
Elastic modulus / Young’s modulus / Stress
7
a decrease
8
Shear
9
compressive
10
The body restores its original dimensions and shape if the applied stress is removed within the _______ region.
elastic
11
plastic
12
yield
13
large
14
False
15
True
16
False
17
strength
18
Tensile strength
19
fatigue strength
20
Impact strength
21
False
22
ductile
23
False
24
malleable
25
Gold
26
resilience
27
Toughness
28
acrylic
29
Harmful to humans when oxidized.
30
Conductors
31
proportional
32
False
33
Ohm
34
Expensive
35
Plastic
36
ohm - 1 m - 1
37
iron
38
ores
39
__________are not mixed with other metals
pure metals
40
alloys
41
an alloy
42
stainless steel
43
brass
44
iron
45
bronze
46
gold / brass / bronze
47
soft and ductile
48
Medium carbon
49
Low carbon
50
ductility
51
Medium carbon
52
Vices are best made of_________iron.
cast
53
cast
54
Stainless
55
Stainless
56
carbon
57
cotton
58
PVC
59
increases
60
bark
61
True
62
lignin
63
hard
64
True
65
Hard
66
False
67
False
68
Thermoplastics
69
False
70
Thermosetting
71
nylon
72
nylon
73
Teflon
74
nylon
75
malleable
76
True
77
degrade
78
Bakelite
79
Bakelite
80
Bakelite
81
bad
82
True
83
melamine
84
True
85
False
86
Polyester resin
87
True
88
CFRP
89
CFRP
90
Silicone oxide