Metals In The Plant Flashcards

1
Q

A metals ability to change shape or be distorted without breaking is called what?

A

Malleability or ductility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Ductility combined with strength is called what?

A

Toughness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The ability of a metal to return to its original shape being deformed is called what?

A

Elasticity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Metals such as iron, nickel, and cobalt have natural magnetic properties, the are known as what

A

Ferromagnetic metals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Some alloy metals exhibit excellent magnetic qualities. One such metal is .

A

Alnico- alloy of aluminum, nickel, and cobalt. Found in radio speakers magnets.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A solid and liquid can exist together at the melting point. Adding heat melts ice faster but doess not change the temp. The heat absorbed during melting is called .

A

Latent heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are alloys that contain iron as the basee metal to which other metals or nonmetals are added are called what?

A

Ferrous alloys. All common steels are ferrous.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The speed and ease with which a metal can be cut on a machine is called what?

A

Machinability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Malleability

A

Ability of a metal to be shaped when hammering

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The ability of a metal to be stretched into thin wire without breaking is called what?

A

Its ductility. Ex. Copper, aluminum stranded wire.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The ability of a metal to withstand sudden shocks or high impact forces without fracturing or breaking is referwd to as what?

A

Its toughness. In general, softer metals are tougher than harder metals. Ex. Impact sockets.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The ability of a metal to be hammered into a thin sheet is called what?

A

Malleability. Most ductile metals are malleable.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A metals ability to resist deformation is referred to as

A

Its strength. Very dependent of the its cross sectional area. Newton law no.2 when two objects interact, they apply equal magnitude of force upon eachother but in opposite directions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The maximum ammount of stress material can exert is called its’s ….

A

Yield shrength

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The ability of a metal to resist being pulled apart is called its what?

A

Its tensile force.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Describe tensile yield strength.

A

The maximum tensile stress; force per unit of cross sectional area
Usually expressed in thousands of pounds per square in.. strenghts direcrly related to hardness. The harder metals, the greater the yield strength.

17
Q

What is specific gravity?

A

It is the ratio between the density of a given material and the density of water.

18
Q

Metal under heavy load at high temperatures may undergo_______.

A

Creep

19
Q

Permanent mold casings use both metal cores and sand cores.

A

True

20
Q

Describe die casting?

A

It is the most rapid of all casting methods. It is is used to cast metals having no iron or non-ferrous metals such as zinc aluminum and babit metal