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Test Review > Welding Test > Flashcards

Welding Test Flashcards

1
Q

Which light rays cause severe eye and skin problems?

A

Visible

Ultra violet

Infrared

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2
Q

When protecting your shielded lens in your helmet, you should use_________ lens next to your face?

A

Plastic

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3
Q

What shade of lens is for low amperage sheet metal?

A

9

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4
Q

Arc flash is?

A

When your eyes are exposed to ultraviolet rays

When you eyes are covered in blisters

The feeling of sand paper in your eyes

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5
Q

If you see weld spots after lifting your helmet, you should?

A

Use a darker shade of lens

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6
Q

You should avoid _________ to lessen your chance of shocks?

A

High temperature

High humidity

Damp wet conditions

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7
Q

Don not repair a splice within______feet of the stinger?

A

10 feet

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8
Q

Use GFCI when using _______, ______ and________

A

Lighting

Grinder

Drilling

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9
Q

As constant current machine uses?

A

Shielded metal arc welding rods

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10
Q

Amperage is the measurement expressing the rate of the current flow ‘

True or false

A

True

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11
Q

Voltage is the force that causes the current to flow.

True or false

A

True

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12
Q

A welding machine with a duty cycle of 60 percent rated at 300 amperes will put out its rated amperage at the rated voltage for_______?

A

6 minutes of welding out of 10

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13
Q

Arc blow can be prevented by?

A

Ac welding

Using a short arc

Welding corners and edges first

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14
Q

Welding cables come in 8 sizes what number is the smallest and what number is the biggest?

A

4 smallest

4/0 biggest

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15
Q

The stinger is attatched to a ________. Which is lighter cable

A

Whip

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16
Q

When connecting a ground clamp next to a bearing make sure to?

A

Put it on the same side as you and away from the bearing

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17
Q

If you increase the voltage puddle ________and ________occur. And if you increase the amperage what will occur?

A

Puddle width and fluidity

Deeper penetration

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18
Q

A short arc is used for?

A

Deeper penetration

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19
Q

When using reverse polarity the electrode is connected to the _______ terminal

A

Positive

20
Q

Straight polarity will cause________?

A

Shallow penetration

21
Q

When checking polarity use a _____________ rod to check which terminal the electrode is connected to. Reverse polarity will be quoted than straight polarity

A

e6010

22
Q

If slag gets into the weld it will cause it to fail.

True of false

A

True

23
Q

A general rule for setting the amperage on the welding machines is?

A

Turning the rod metal width to a decimal.

Example 1/8 rod = .125 so 125 amps

24
Q

Electrode coatings help by?

A

Protects the weld pool and molten end of electrode

Keeps out oxygen and nitrogen from he weld area

Form a slag to cover the weld deposite

25
Q

The welding rod EWS E7018 the first two digits are what?

A

Tensile strength

26
Q

The third digit in e7018 is?

A

Position

1= all

2=flat horizontal

3=flat only

4= flat and down

27
Q

Final digit in 7018 is the _________

A

Type of coating and polarity

28
Q

A plug weld is_______?

A

Used in a hole where 2 plates are lapped over each other

29
Q

A stringer bead width should be _______ times the electrode core wire diameter

A

2-3 times

30
Q

What are the 4 types of passes?

A

Root-first past deepest penetration

Fill pass- heavy beads are laid, maybe stringer or weave

Cover pass- a thin weave coating used to produce a good blend with the plate and to eliminate undercut

Fill and finish pass- a heavy pass designed to fill the groove and produce a finished surface at the same time

31
Q

Holding the electrode 90 degrees to the work piece will result in_________?

A

Less penetration

32
Q

Stray arc strikes are considered ?

A

Major weld faults

33
Q

When restarting an arc it is better to use which method?

Scratch or tapping

A

Tapping method would be best

34
Q

Holding the electrode at 90 degrees to the work will result in?

A

Less penetration

35
Q

You would find porosity in your welds if you had a greasy joint to weld?

True or false

A

True

36
Q

GMAW uses what different types of gases?

A

Argon

Helium

Or

Carbon dioxide

37
Q

The shielding gas protects the weld from what three things?

A

Oxygen

Impurities in the air

And

Nitrogen

38
Q

When using GMAW on carbon steels you would use a_________ gas to cause an oxidizing behaviour in the weld area?

A

Carbon dioxide

39
Q

The weld joint that has two pieces welded by their edges is a _______ joint

A

Butt

40
Q

Fillet welds are sized by ___________?

A

Leg length of the smallest equal leg triangle that may be drawn within the cross section of the weld

41
Q

What are the 5 basic joints?

A

Butt joint

Lapp joint

Corner joint

T joint

Edge joint

42
Q

What are the 4 basic. Weld types?

A

Surfacing
Plug or slot
Fillet
Groove

43
Q

What are the 4 variations of fillet welds?

A

Continuous

Intermittent

Chain intermittent

Staggered intermittent

44
Q

What are some groove weld types?

A

Square

Bevel

V

U

J

45
Q

The size of a plug weld refers to the the _________ of its hole at the base of the weld.

A

Diameter

46
Q

Which two welding symbols must always be listed?

A

Reference lines

Arrow line

47
Q

What are the different arrow locations?

A

Arrow side

Other side

Both sides

Test Review (17 decks)

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