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LH AAE 25 Flashcards

(95 cards)

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1
Q

Oxygen is an essential part of the _____ process.

A

combustion

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2
Q

Metallurgy is the _____.

A

science and technology of the applications and uses of various metals

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3
Q

Mechanical testing is another name for _____ testing.

A

destructive

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4
Q

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

A

portable

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5
Q

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

A

tolerance

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6
Q

The root pass or root run is _____.

A

the first weld pass or run deposited in a joint where further runs are needed

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7
Q

Welding test coupons are scored visually for _____.

A

slag inclusions, other discontinuities

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8
Q

Weld appearance indicates both correct _____ and correct _____.

A

process, procedure

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9
Q

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

A

rubber-soled

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10
Q

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

A

Orange

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11
Q

Laboratory safety rules are intended mainly to protect the _____.

A

students

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12
Q

Most laboratory accidents are caused by _____.

A

carelessness

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13
Q

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

A

green

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14
Q

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

A

dry chemical

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15
Q

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

A

Class B

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16
Q

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

A

cast iron

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17
Q

One sizing system for twist drills is the _____ system.

A

Numerical

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18
Q

When heat is applied, metals tend to _____.

A

expand

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19
Q

The gas oxygen is _____ than air.

A

Heavier

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20
Q

A fillet weld is also called a _____ weld.

A

T

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21
Q

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

A

Completely

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22
Q

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

A

deposition

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23
Q

Weld joints are _____ to allow complete penetration.

A

beveled

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24
Q

The most effective technique for cleaning and preparing weld metal is _____.

A

grinding

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25
An effective welding precaution is the wearing of _____.
leather gloves
26
A common shielding gas for GMAW processes is _____.
carbon dioxide
27
Heat aluminum stock to at least _____ degrees F prior to welding.
120
28
The components of a welded joint are composed of _____ metal.
parent
29
To begin welding on a construction site, a _____ permit is required.
hot work
30
A single run of weld metal deposited on the parent metal is a _____.
bead
31
One of four factors to consider when determining correct welding amperage is _____.
speed of travel
32
A common welding method is _____.
vertical up
33
A continuous _____ sound indicates proper arc length.
Crackling
34
A welding symbol indicates _____.
desired type of weld
35
A steel sample marked with C indicates ______.
basic open hearth carbon steel
36
The ability of a steel sample to be stretched is _____.
ductility
37
The science and technology of the applications of various metals is _____.
metallurgy
38
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
39
Fluency in a second language may be an employability _____ in welding careers.
advantage
40
A benefit of maintaining industry-recognized certifications is _____.
enjoy higher earnings
41
To identify aisles, handrails, and fall hazards, use the color _____.
yellow
42
Prior to leaving the work area each day, you should _____.
be sure all solvent & paint cans are covered
43
Check the gauge before using a _____ extinguisher on Class A fires.
pressurized water
44
A metal that resists rust and is almost pure iron is _____.
wrought iron
45
The process of combining pure oxygen with a combustible ____ is called oxyfuel.
fuel gas
46
The metal pieces of a fillet weld are placed in the shape of a _____.
T
47
The size of a welding electrode is determined by _____.
diameter of the core wire
48
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’
49
In plasma-arc cutting, the cutting gas becomes plasma in the _____ stream.
arc
50
The steelmaking process that improves metal properties, increases density, and preforms the final product is _____.
rolling
51
In a C-1020 steel, the C indicates _____.
carbon
52
Cutting several plates simultaneously is called _____ cutting.
stack
53
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’
54
Use a straightedge when plasma cutting due to higher _____.
travel speed
55
The metal to be joined by welding is the _____.
Parent Material
56
Poor quality welds are caused by the absorption of _____.
nitrogen and oxygen
57
An AWS position code for vertical welding is _____.
3F
58
The majority of joints welded are either butt welds or _____ welds.
fillet
59
A welder’s duty cycle is _____.
the percent of a ten-minute period the welder can be operated
60
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
61
A 4X8’ sheet of ¾" steel plate can be cut into _____ 12’X12” coupons.
32
62
Fitters / grinders start at $9.65/hour and will gross _____ in a 40-hour work week.
$386
63
Metals that have a high ductility have all the following characteristics, except for: Crack under extreme loads.
True
64
The lower transformation temperature of carbon steel is:
1340
65
Preheating base metal prior to welding increases the chances of Hydrogen cracking.
False
66
Tempering is defined as: Reheating metal after quenching to improve grain structure.
True
67
These metallurgical properties have a direct relationship
Toughness and ductility Strength and hardness
68
Underbead cracking is caused by:
Hydrogen in weld
69
This type of discontinuities is typically seen in the clustered or piping form
Porosity
70
What type of discontinuity is common when improper cleaning takes place?
Incomplete fusion
71
The maximum radius for a Guided Bend Test is ____ inches.
1/8
72
“Aids in finding non-visual discontinuities” is not a benefit of visual inspection
True
73
Discontinuities are defects that have surpassed or exceeded the tolerances given by code.
True
74
Which of the following are not one of the most commonly used codes in the industry? D1.1 api 1104 SAE 5-30
SAE 5-30
75
WPS stands for:
Welding Procedure Specification
76
Essential variables are those variables which would not require a procedure to be requalified.
False
77
You are needing to draw a scaled drawing of an object that has a width of 7 ft 6 inches x 12 ft long. What would the dimensions be if drawn on paper using a scale that is 1/4in : 6in?
3 3/4 inches x 6 inches
78
Of the following, which is not a weld joint: T, butt, fillet, edge
Fillet
79
GMAW may be performed as what type of process
Automatic, semiautomatic, mechanized
80
GMAW – Spray is used with at least ___ argon
90
81
All of the following can be causes of inadequate shielding gas coverage, except: wind, higher PSI joint fit up, low PSI
Joint fit Up
82
ER70S-6 is a deoxidized mild steel filler wire.
False
83
What does the R indicate in er70s-6
R indicates rod
84
GMAW shielding gas is measured by ____
Cubic feet per hour (CFH)
85
Aluminum can be cut by OFC
False
86
Which cutting tip preheat hole count cannot be used for Oxy-Acetylene?
8+
87
What automatically changes amperage in welding?
Feed Speed
88
What can contamination during GMAW welding be caused by?
Too high of gas flow
89
What type of welding technique produces a shallow weld with little build up?
Forehand or pushing of the welding gun
90
In Oxy-fuel cutting, drag is defined as what?
The distance by which the bottom of a cut lags behind the top
91
What type of slag has a higher unoxidized iron content and is attached solidly to the bottom edge of the plate?
Hard Slag
92
Cutting oxygen must be at purity levels above 95% for max efficiency: True or False?
True
93
What is the term used to describe the spacing between the electrode tip and the nozzle tip in PAC?
Contact tip to work distance
94
All of the following are benefits of plasma arc cutting, except: A) Requires preheating of thick metals B) Can cut any electrically conductive material C) Puts less heat into the material being cut D) All of the above are benefits
A) Requires preheating of thick metals
95
What cutting angle should be used for plasma arc gouging?
30

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