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Welder 1 > Module 13 metal identification > Flashcards

Module 13 metal identification Flashcards

1
Q

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

A

C) iron

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2
Q

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

A

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

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3
Q

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

A

D) copper or brass

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4
Q

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

A

A) silvery gray

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5
Q

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

A

C) gray cast iron

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6
Q

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

A

D) by their weight

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7
Q

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

A

B) it is a casting

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8
Q

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

A

A) it has been formed

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9
Q

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

A

B) a soft material like a aluminum

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10
Q

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

A

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

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11
Q

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

A

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

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12
Q

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

A

A) 100

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13
Q

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

A

D) magnesium

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14
Q

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

A

B) transfer the ID number to the remaining plate

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15
Q

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

A

A) study the meal test report

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16
Q

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

A

C) metal specification tags

17
Q

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

A

B) comprehensive strength

18
Q

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

A

C) shear strength

19
Q

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

A

A) tensile strength

20
Q

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

A

D) malleability

21
Q

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

A

A) Brittleness

22
Q

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

A

B) hardness

23
Q

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

A

C) toughness

24
Q

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

A

A) elasticity

25
Q

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

A

B) yield strength

26
Q

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

A

A) impact strength

27
Q

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

A

C) .283 lb/in^3

28
Q

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

A

C) corrosion resistance

29
Q

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

A

A) electrical conductivity

30
Q

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

A

B) thermal conductivity

31
Q

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

A

D) thermal expansion rate

32
Q

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

A

Melting point

Welder 1 (20 decks)

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