Coastal Bend Test Flashcards

Heavy Questions in GMAW (100 cards)

1
Q

Oxygen is an essential part of the _____ process.

A

combustion

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

Metallurgy is the_____.

A

science and technology of the applications and uses of various metals

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

Mechanical testing is another name for _____ testing.

A

destructive

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

A training or employment credential that you own is said to be _____.

A

portable

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

The variance between the published welding standard and acceptable welding quality is called _____.

A

tolerance

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

Oxyacetylene cutting is abbreviated as _____.

A

OFC

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

The root pass or root run is _____.

A

the first weld pass deposited in a joint where further passes are needed

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

The kindling temperature of steel in pure oxygen is _____ degrees F.

A

1400 – 1600

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

Welding test coupons are scored visually for _____.

A

slag inclusions

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

Weld appearance indicates both correct _____ and correct_____.

A

process, procedure

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

When handing electrical equipment, the safest shoes to wear are _____ shoes.

A

rubber-soled

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

The safety color code that identifies the cutting edge on a portable band saw is _____.

A

red

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

Laboratory safety rules are intended mainly to protect the _____.

A

students

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

Most laboratory accidents are caused by _____.

A

carelessness

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

The safety color code used to identify first-aid equipment and supplies is _____.

A

Green

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

The type of fire extinguisher commonly found in public buildings is the _____.

A

dry chemical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Burning oil, paint, and other flammable liquids are _____ fires.

A

Class B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

A brittle metal with high wear resistance but limited tensile strength is _____.

A

cast iron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

One sizing system for twist drills is the _____ system.

A

numerical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

When heat is applied, metals tend to _____.

A

expand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The gas oxygen is _____ than air.

A

heavier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

A fillet weld is also called a _____ weld.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

During set-up, the oxygen cylinder valve should be opened _____.

A

completely

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The rate at which melted electrode is added to the weld puddle or pool is the _____ rate.

A

deposition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Weld joints are _____ to allow complete penetration.
beveled
26
The most effective technique for cleaning and preparing weld metal is _____.
grinding
27
An effective welding precaution is the wearing of _____.
leather gloves
28
Stainless steel and cast iron are _____ by oxyacetylene cutting.
considered uncuttable
29
A common shielding gas for GMAW processes is _____.
carbon dioxide
30
The best filter for medium-duty oxyacetylene cutting is _____.
4 or 5
31
Heat aluminum stock to at least _____ degrees F prior to welding.
120
32
The components of a welded joint are composed of _____ metal.
parent
33
To begin welding on a construction site, a _____ permit is required.
hot work
34
A single run of weld metal deposited on the parent metal is a _____.
bead
35
The two types of oxyacetylene cutting torches are _____ and dedicated.
combination
36
Cutting gasses are generally mixed in the mixing chamber or the _____ chamber of the cutting torch.
injector
37
One of four factors to consider when determining correct welding amperage is _____.
speed of travel
38
A common welding method is _____.
vertical up
39
A continuous _____ sound indicates proper arc length.
crackling
40
Oxyacetylene torches with a slightly angled tip are more efficient for cutting _____.
flat plate
41
Oxyacetylene cutting speeds should be fast enough so that drag lines have a slight _____ slant.
backwards
42
Hard slag contains _____ % unoxidized iron.
30-40
43
The 1F welding position is _____.
horizontal flat
44
Appropriate PPE during oxyacetylene cutting is critical due to_____.
Intense light and flying sparks
45
Most oxyacetylene torch tips are made from _____.
copper
46
A welding symbol indicates _____.
desired type of weld
47
A steel sample marked with C indicates ______.
basic open hearth carbon steel
48
The ability of a steel sample to be stretched is _____.
ductility
49
The science and technology of the applications of various metals is _____.
metallurgy
50
A fabrication shop conducts an inventory of steel angle on hand, and finds they have bins containing 12 feet, 47 feet, 98 feet, and 221 feet, with a total steel angle inventory of _____ feet.
378
51
Fluency in a second language may be an employability _____ in welding careers.
advantage
52
A benefit of maintaining industry-recognized certifications is _____.
enjoy higher earnings
53
To identify aisles, handrails, and fall hazards, use the color _____.
yellow
54
Prior to leaving the work area each day, you should _____.
be sure all solvent & paint cans are covered
55
Check the gauge before using a _____ extinguisher on Class A fires.
pressurized water
56
A metal that resists rust and is almost pure iron is _____.
wrought iron
57
The open space in a steel plate caused by oxyacetylene cutting is a _____.
kerf
58
The process of combining pure oxygen with a combustible ____ is called oxyfuel.
fuel gas
59
The metal pieces of a fillet weld are placed in the shape of a _____.
T
60
The size of a welding electrode is determined by _____.
diameter of the core wire
61
A 1F weld with a bead that is too high and shows little fusion is _____.
too cold
62
GMAW utilizes a consumable electrode in the form of a _____.
metal wire
63
A job order for roof service ladders requires 1098 pieces of bar stock, each 9” long. The total length of all the bar stock is _____.
9882” or 823.5’
64
Of the following choices, _____ is NOT a GMAW arc transfer process.
metallic transfer
65
Of the following, _____ is NOT a GMAW shielding gas.
actinium
66
In plasma-arc cutting, the cutting gas becomes plasma in the _____ stream.
arc
67
The _____ is designed to quickly stop the flow of gas in case of a flashback.
flashback arrestor
68
The steelmaking process that improves metal properties, increases density, and preforms the final product is _____.
rolling
69
In a C-1020 steel, the C indicates _____.
carbon
70
Of the following, _____ is an inert gas, suitable for shielding GMAW processes.
helium
71
Cutting several plates simultaneously is called _____ cutting.
stack
72
The job order for a tank support calls for 14 pieces of wide-flange beam, each 33” long. Without allowing for cut loss, this will require at least _____ total of wide-flange beam.
462” or 38.5’
73
Use a straightedge when plasma cutting due to higher _____.
travel speed
74
Flowmeters measure the rate of flow of shielding gasses in _____.
CFH or L/min
75
In GMAW, the term faying surface refers to _____.
the surface of the joint that will be melted during the weld
76
A molecule of acetylene contains a triple bond, and is composed of _____.
two hydrogen atoms and two carbon atoms
77
In the globular transfer GMAW process, _____ are transferred across the arc.
large droplets of molten metal
78
A flux gas mixture of _____ produces a flatter weld profile and a softer arc at a reasonable gas cost.
25% CO2, 75% argon
79
GMAW power supplies are _____ type machines.
constant-voltage, constant-potential
80
The metal to be joined by welding is the _____.
parent metal
81
Poor quality welds are caused by the absorption of _____.
nitrogen and oxygen
82
An AWS position code for vertical welding is _____.
3F
83
In the axial spray GMAW metal transfer process, _____ are projected across the arc gap to the molten weld pool.
very small drops
84
The GMAW process will not work properly if the wrong type of _____ is used.
power supply
85
If the 5th digit of a GMAW electrode’s classification is _____, that electrode is a solid wire electrode.
S
86
The 3rd digit position in a GMAW electrode’s classification is reserved to indicate _____.
tensile strength
87
Short-circuit GMAW transfer is suitable for a combination of _____.
thick to thin materials
88
The majority of joints welded are either butt welds or _____ welds.
fillet
89
Wire-feed speed is recommended by manufacturer, and is measured in _____.
inches per minute
90
A welder’s duty cycle is _____.
the percent of a ten-minute period the welder can be operated
91
In building a large component, a welder burns 32 pounds of MIG electrode in one 8-hour shift, at the rate of _____ pounds per hour.
4
92
In the short-circuit transfer GMAW process (GMAW-S), _____ transfers to the molten weld pool by direct contact.
liquid metal
93
Changing the wire feed speed of the GMAW machine is the best way to adjust _____ of the arc.
amperage
94
The distance from the contact tube to the arc is the stick-out or _____.
electrode extension
95
Forehand GMA welding generally results in _____ with _____.
shallow penetration, little buildup
96
Transformer-rectifier GMAW power sources generally require _____ power.
three-phase
97
A 4X8’ sheet of ¾" steel plate can be cut into _____ 12’X12” coupons.
32
98
Fitters / grinders start at $9.65/hour and will gross _____ in a 40-hour work week.
386
99
The most commonly used polarity for GMAW processes is _____.
DCRP
100
GMA welding machines have a _____ duty cycle.
D 1.0