Deck 22: Manufacturing Materials

Question 1

Increasing the amount of chromium in steel increases its tensile strength and hardness.

Answer 1

False

Question 2

The acronym SAE stands for ____________________________________.

Answer 2

Society of Automotive Engineers

Question 3

The brittleness in hot steel is accountable to a surplus of ____.

A) sulphur
B) graphite
C) machining oil
D) oxygen

Answer 3

A

Question 4

Over 90 percent of all steel produced is ____________________ steel.

Question 5

Plastics are classified as either thermosetting or _________________________.

Question 6

Thermoplastics soften or liquefy and flow when heat is applied.

Question 7

Chromium vanadium steels are best known for hardness and strength.

Question 8

The acronym AISI stands for ____.

A) American Institute for Steel and Iron
B) American Iron Standards Institute
C) American Institute for Standards in Iron
D) American Iron and Steel Institute

Question 9

When heat is applied or when a catalyst is added to _________________________ plastics undergo an irreversible chemical change.

Question 10

When copper is added to steel, it increases atmospheric corrosion resistance.

Question 11

In a steel specification AISI 4460, the 44 stands for ____.

A) alloy series
B) carbon content
C) material thickness in millimeters
D) principal properties of the steel

Question 12

Molybdenum increases ____.

A) flexibility
B) hardness
C) melting temperature
D) hardenability

Question 13

The specific type of steel best known for its hardness, strength, and toughness is ____________________ steel.

Question 14

Which acts as a toughener when added to steel?

A) cadmium
B) nickel
C) sodium
D) brass

Question 15

Epoxy is classified as a thermoplastic.