Module 13 metal identification

Question 1

A Ferris metal has a high content of:
A) carbon
B) nickel
C) iron
D) manganese

Answer 1

C) iron

Question 2

Which statement describes a non-Ferris metal?
A) high iron content, and usually magnetic
B) high iron content, and usually non magnetic
C) contains little or no iron and is usually magnetic
D) contains little or no iron and is usually non-magnetic

Answer 2

D) contains little or no iron and is usually non-magnetic

Question 3

A metal that is red or yellow is most likely what type of metal?
A) aluminum or magnesium
B) malleable cast iron
C) low or medium carbon steel
D) copper or brass

Answer 3

D) copper or brass

Question 4

What is the normal colour for steals and cast-iron?
A) silvery gray
B) black
C) yellow
D) Read

Answer 4

A) silvery gray

Question 5

If a metal that has fractured shows a dull great appearance in its internal structure with no bending before breaking it is most likely:
A) high carbon steel
B) malleable cast-iron
C) gray cast iron
D) pure aluminum

Answer 5

C) gray cast iron

Question 6

Given two identical pieces of zinc, diecast, and aluminum what would be the simplest way to identify them?
A) flame test
B) spark test
C) by the colour
D) by their weight

Answer 6

D) by their weight

Question 7

If an object is irregularly shaped, what might you conclude about the object?
A) it is aluminum
B) it is a casting
C) it is heat treated
D) it is ductile

Answer 7

B) it is a casting

Question 8

If a piece of metal has a smooth outer service, what might you conclude about the object?
A) it has been formed
B) it is a casting
C) it is high carbon steel
D) it is magnetic

Answer 8

A) it has been formed

Question 9

In using a chip test to identify a metal what would a smooth, continuous chip indicate?
A) a dull chisel
B) a soft material like a aluminum
C) a hard material like carbon steel
D) brittle material like cast iron

Answer 9

B) a soft material like a aluminum

Question 10

How is cast-iron distinguished from low carbon steel in a spark test?
A) This is
The Sparks given off by low carbon steel, are short with red bursts near the grinder
C) Sparks look the same but more pressure is required with carbon steel
D) The Sparks given off by cast-iron are short with red bursts near the grinder

Answer 10

D) The Sparks given off by cast-iron are short with red bursts near the grinder

Question 11

How can using a new handheld file give you an estimate of a metals hardness?
A) if you tap the metal with the file, hardened tool steel will not ring
B) if the file bites into the metal easily, it is likely a hard metal
C) If the file bites into the metal easily, it is likely a soft metal
D) if the metal is harder than the file, the file bites in easily

Answer 11

C) If the file bites into the metal easily, it is likely a soft metal

Question 12

What is the approximate hardness rating of low carbon steel on the Brynell hardness scale?
A) 100
B) 300
C) 500
D) 600

Answer 12

A) 100

Question 13

Which metal will burn violently when ignited using the flame test?
A) copper
B) nickel
C) aluminum
D) magnesium

Answer 13

D) magnesium

Question 14

When the heat code identification number is cut from a piece of plate, what should you do?
A) notify the supervisor
B) transfer the ID number to the remaining plate
C) check the hardness of the remaining plate
D) discard the test report

Answer 14

B) transfer the ID number to the remaining plate

Question 15

What is the most precise method for the identification of a metal that has been shipped from a steel mill?
A) study the meal test report
B) use a file for hardness testing
C) do a spark test with an angle grinder
D) seal that comes in shapes is always low carbon

Answer 15

A) study the meal test report

Question 16

In addition to the mail test report, what else do steelmills usually attach to the straps that hold bundles of barstock together?
A) colour-coded material size tags
B) date of manufacture tags
C) metal specification tags
D) an MSDS

Answer 16

C) metal specification tags

Question 17

This term describes the resistance of a material to Force that tends to deform or cause failure by crushing
A) shear strength
B) comprehensive strength
C) endurance limit
D) tensile strength

Answer 17

B) comprehensive strength

Question 18

The maximum load required to punch through a metal is used to determine the:
A) toughness
B) comprehensive strength
C) shear strength
D) Malleability

Answer 18

C) shear strength

Question 19

Which term describes the resistance of a material to a force that is trying to pull it apart?
A) tensile strength
B) yield strength
C) ductility
D) elasticity

Answer 19

A) tensile strength

Question 20

Which term describes the ability of a metal to be cold worked without a great deal of resistance?
A) elasticity
B) toughness
C) brittleness
D) malleability

Answer 20

D) malleability

Question 21

Which term describes the material that shows no permanent distortion before failure?
A) Brittleness
B) hardness
C) toughness
D) elasticity

Answer 21

A) Brittleness

Question 22

Which term describes the ability of a metal to resist, indentation or penetration?
A) brittleness
B) hardness
C) toughness
D) malleability

Answer 22

B) hardness

Question 23

Which term describes the ability of a metal to a stand the shock of rapidly applied load?
A) malleability
B) hardness
C) toughness
D) elasticity

Answer 23

C) toughness

Question 24

This term describes the ability of a metal to return to its original shape after a load has been removed
A) elasticity
B) malleability
C) toughness
D) ductility

Answer 24

A) elasticity

Question 25

The point of which permanent deformation takes place is known as the
A) tensile strength
B) yield strength
C) comprehensive strength
D) sheer strength

Answer 25

B) yield strength

Question 26

Which term describes the ability of a metal to a stand, a sharp high velocity blow
A) impact strength
B) yield strength
C) comprehensive strength
D) tensile strength

Answer 26

A) impact strength

Question 27

Density is defined as a weight per unit volume. What is the density of steel?
A) .283 lb/in
B) .283 lb/in^2
C) .283 lb/in^3
D) .283 lb/gal I’m gonna say cute

Answer 27

C) .283 lb/in^3

Question 28

Which term describes the ability of a metal to resist wasting away by slow, gradual combination with other elements and chemical compounds?
A) electrical resistance
B) thermal expansion
C) corrosion resistance
D) stress relieving

Answer 28

C) corrosion resistance

Question 29

Which term describes the rate at which electric current flows through a metal?
A) electrical conductivity
B) electrical resistance
C) electrical short circuit
D) electrical variability

Answer 29

A) electrical conductivity

Question 30

Which term describes the rate at which heat flows through a metal?
A) thermal expansion
B) thermal conductivity
C) electrical conductivity
D) transition temperature

Answer 30

B) thermal conductivity

Question 31

Which term describes the extent of increase in physical dimensions due to a change in the metals temperature
A) thermal conductivity
B) transition temperature
C) Electrical expansion rate
D) thermal expansion rate

Answer 31

D) thermal expansion rate

Question 32

The temperature at which metal changes to liquid form is called its

Answer 32

Melting point