Week One Test

Question 1

A mixture of two or more metals to form a part of steel is

Answer 1

Alloy or alloy steel

Question 2

The base element that determines the following nature of steel is

Answer 2

Iron

Question 3

All stainless steel’s contain iron as the main element and this other element in amount ranging from approximately one to 30%

Answer 3

Chromium

Question 4

Defined by the resistance of a metal to local penetration by a harder substance is

Answer 4

Hardness

Question 5

The property of a metal that allows it to be stretched or otherwise changed in shape without breaking is

Answer 5

Ductility

Question 6

NASTM specification for a steel product consist of the letter a for

Answer 6

Ferrous such as A36

Question 7

When metal is heated up what happens?

Answer 7

It expands

Question 8

What are some ways to identify a bar of metal?

Answer 8

An appearance test, a hardness test, a magnetic test, a chisel test and a spark test

Question 9

What are the five basic weld joints?

Answer 9

Corner joint, edge, joint, lap joint, butt joint, tea joint

Question 10

What is the difference between welding and brazing?

Answer 10

While braising, the base metal is not melted

Question 11

What are the features of a carburizing flame?

Answer 11

A car rising flame has an inter flame cone, and an outer blue envelope to her house

Question 12

What is the list of oxy acetylene flames in order?

Answer 12

Carburizing, flame, neutral flame, oxidizing flame

Question 13

The melting together, a filler, metal and base metal or of base metal only to produce a weld

Answer 13

Fusion welding

Question 14

The best way to move OXY and acetylene is with

Answer 14

A cylinder cart

Question 15

This permits, a loud and shrill squeal or hissing sound

Answer 15

A flashback

Question 17

What is the worst or toxic fume to inhale while welding with this metal?

Answer 17

Galvanized steel

Question 18

Oxy acetylene cutting is confined to this type of metal

Answer 18

Ferris metals

Question 19

There is something wrong with your oxygen set up on your oxy acetylene cylinders you should

Answer 19

Have a qualified person repair

Question 20

True or false, the thicker, the metal, the smaller, the orifice for oxy acetylene welding

Answer 20

False

Question 21

True or false, a higher carbon amount in steel, the lower the melting point

Answer 21

True

Question 22

When cracking a oxygen or settling cylinder, what happens

Answer 22

You open the valve and allow any dust or particles to blow out and then close the valve and apply the regulator

Question 23

True or false acetylene bottles have right handed threads

Answer 23

False

Question 24

A type of strengthening for metal that happens quickly

Answer 24

Quenching

Question 25

Ventilation standards are set by this organization

Answer 25

Cal OSHA

Question 26

True or false cooling factor, heat treatment

Answer 26

True

Question 27

The last two digits in the a I S I number stand for

Answer 27

Nominal carbon content in 1/100 of a percent

Question 28

When flame cutting this chemical reaction process happens to separate metals

Answer 28

A type of sped up oxidation

Question 29

Between high carbon and low carbon, which one has a lower melting point

Answer 29

High carbon steel has a lower melting point

Question 30

When choosing a filler metal the metal allergic composition should be

Answer 30

Close between the base, metal and filler metal

Question 31

What type of metal has a BNH of 600+

Answer 31

Metal harder than a file

Question 32

When too much slag forms while oxy cutting, you are

Answer 32

Cutting too slow

Question 33

All position certified weld

Answer 33

6G

Question 34

Developed when there is good penetration on a root weld

Answer 34

A keyhole

Question 35

Shielded from inert gas supply

Answer 35

GMAW gas metal arc welding

Question 36

Means reverse polarity

Answer 36

DCEP Direct Current electrode Positive

Question 37

Vertical position weld

Answer 37

3G

Question 38

SMAW

Answer 38

Utilizes a rod coated with a baked flux

Question 39

Electrode is negative

Answer 39

DCSP direct current straight polarity

Question 40

Flat fillet weld position

Answer 40

1F

Question 41

Burns out impurities after the root pass

Answer 41

Hot pass

Question 42

Covers the weld deposit and provides additional protection from the atmosphere

Answer 42

Slag

Question 43

Tubular or Cored electrode

Answer 43

FCAW

Question 44

Uses a tungsten electrode

Answer 44

GTAW

Question 45

The study of metals or metal properties

Answer 45

Metallurgy

Question 46

Used to measure relative toughness

Answer 46

Impact test

Question 47

The process of a metal growing larger when heated

Answer 47

Thermal expansion

Question 48

Used to identify an unknown piece of metal by removing a small amount

Answer 48

Chip test

Question 49

Metals having an iron base

Answer 49

Ferrous

Question 50

Metals containing no iron

Answer 50

Non-ferrous

Question 51

The ability of a metal to resist surface penetration, indentation, or abrasion

Answer 51

Hardness

Question 52

Compound of carbon and hydrogen

Answer 52

Acetylene

Question 53

An ignition inside of a blow pipe or hoses

Answer 53

Flashback

Question 54

The process of removing hardness by cooling a metal slowly

Answer 54

Annealing

Question 55

The process of reheating and re-quenching order to remove brittleness

Answer 55

Tempering

Question 56

The ability of a metal to resist being pulled apart

Answer 56

Tensile strength