A cracked aluminum head is going to be repaired by TIG welding.

Welder B says to remove all carbon, oil, and dirt from crack

An Inert Gas is used for TIG welding, what does it do?

Keeps contamination away from the arc.

An aluminum head cracked between the seats can be repaired as follows;

Remove seats, TIG weld and re-bore seats

Why do we use Argon as a shielding gas?

low cost and greater availability

When TIG welding, the arc is started by;

Operating a device on the floor

What are two advantages of TIG welding?

Arc is concentrated and easily controlled.

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MS-2 Test #3 Tig Welding

23 termsStudBud Administration963 plays

To test basic TIG welding knowledge.

Flashcards23 cardsFPractice quizPHost liveL

Questions 23

Answers

1
The electrode used to TIG weld aluminum has a ______ color band.
brown
yellow
red
green
2
The electrode used for steel has a 2% _______ content.
Thorium
Magnesium
Aluminum
Bronze
3
The electrode should be _____ from the tip.
Long enough to start the arc
.250 inches
One electrode diameter
.500 inches
4
A cracked aluminum head is going to be repaired by TIG welding.
both
neither
Welder B says to remove all carbon, oil, and dirt from crack
Welder A says do not pre heat the head.
5
The electrode used for TIG welding steel has a _____ color band.
Red
Blue
Black
Brown
6
An Inert Gas is used for TIG welding, what does it do?
Produces the arc.
Controls the tip temperature.
Keeps contamination away from the arc.
Cools the surface.
7
"Stick out" means:
Removing the electrode for balling
Pulling the torch up to stop the arc
Nozzle length
Tip length
8
An aluminum head cracked between the seats can be repaired as follows;
Bore and install integral seats
Bore and form fit copper seats
Remove seats, TIG weld and re-bore seats
JB weld and smoothed
9
The arc can be:
80% work-piece, 20% electrode
50% work-piece, 50% electrode
Neither
Both
10
Why do we use Argon as a shielding gas?
it burns up in the process
low cost and greater availability
the gas is needed to heat the arc
does not cost anything
11
A V-8 head shows cracking between a spark plug hole and the intake port.
Tech B says this can be repaired by spray welding.
Tech A says this can be repaired with anaerobic sealer.
Both
Neither
12
The torch is _______ cooled
oil
air
water
gas
13
The electrode is made out of....
Stellite
Calcium
Cast Iron
Tungsten
14
The gas flow rate must be ________ CFH for tig welding with Argon
30 to 80
1 to 5
15 to 35
5 to 10
15
The torch angle to the work must be kept at ;
70 to 75 degrees
15 to 20 degrees
90 degrees
20 to 30 degrees
16
The TIG welding process:
Blows the puddle in the desired direction.
Transfers metal from the electrode to the work.
Uses no flux in the process.
Cools the surface and puddle with water.
17
The gas used for TIG welding is
Carbon Dioxide
Oxygen
Argon
Nitrogen
18
The TIG weld on an aluminum head must be _______ when complete.
Glass beaded for uniform surface finish
Chipped to remove slag
Heated to 400 degrees
Pressure tested
19
For aluminum TIG welding the electrode must be;
Pointed and balled.
Ground until blue
Left alone
Less than one inch long
20
When TIG welding, the arc is started by;
Touching the electrode to the surface
Operating a device on the floor
Touching the filler rod to the tip
Pulling a trigger on the torch
21
What are two advantages of TIG welding?
Operator does not need helmet or protective clothing.
Can be used on Aluminum and Plastic.
Works with or without shielding gas.
Arc is concentrated and easily controlled.
22
Exsposure to welding flash can give you a;
Sunburn
Shock
Nose bleed
Hair loss
23
What power source is used for Aluminum TIG welding?
AC
None of the above.
DC, EP
DC, EN

MS-2 Test #3 Tig Welding Flashcards | StudBud