WorksheetsMaterial Knowledge
Total questions: 20
Worksheet time: 10mins
Which property is improved by adding carbon into steel ?
Hardness
Ductility
Malleability
Which property allows the metal to change shapes without breaking ?
Hardness
Ductility
Malleability
Which property indicates the ability of a metal to become liquid ?
Hardness
Ductility
Fusibility
What is the testing method to identifying ferrous metals ?
Tap testing
Ultrasonic testing
Spark testing
The 18-8 stainless steel in content of ...
18 percent chromium and 8 percent nickel
18 percent nickel and 8 percent chromium
18 percent chromium and 8 percent carbon
What is the maximum carbon % to increase the hardness ?
0.75
0.80
0.85
Which heat treatment method is conduct below the critical temperature ?
Annealing
Tempering
Normalizing
Which gas is use in nitriding method ?
Carbon dioxide
Nitrogen
Ammonia
Which manufacturing method is forcing metal through an opening die ?
Extrusion
Hammering
Casting
1234 Aluminum in accordance with aluminum alloy designations is ... ?
99.00% Aluminum with 2 control over individual impurities
99.34% Aluminum with 2 control over individual impurities
99.12% Aluminum with 1 control over individual impurities
What is the lightest structural metal ?
Aluminum
Nickel
Magnesium
Which metal is used primarily in the electrical system ?
Aluminum
Copper
Silver
Alclad aluminum is ... ?
A pure aluminum core coated with a layer of aluminum alloy
A aluminum alloy core coated with a layer of pure aluminum
A aluminum alloy core coated with a layer of aluminum oxide
Which metal is an alloying element in 7000 series of aluminum ?
Copper
Silicon
Zinc
What is the property of pure aluminum ?
Corrosion resistance
Hardness
Conductivity
Icebox rivet is made from ... aluminum alloy ?
2017 and 2024
6061 and 7075
2024 and 6061
An Epoxy resin in a ... plastic ?
Thermoplastic
Thermosetting
Thermocouple
Which type of seal is used in hydraulics system ?
Butyl
Natural
Silicone
A resin in the prepreg carbon fiber is in stage ... ?
Stage A
Stage B
Stage C
Which is the advantages of composite material ?
Low cost
High strength to weight ratio
Easy to repair
