Module 1-4, Strsw

Front 1

The primary reason why oxyacetylene and stick-arc welding are no longer recommended for collision repair is that:

Back 1

There is too much heat-affect

Front 2

What was the primary concern with early two sided spot welders for collision repair?

Back 2

Not enough pressure or power

Front 3

Technician A says that most vehicle makers now recommend squeeze type resistance spot welding for collision repair.

Technician B says that squeeze type resistance spot welding should only be used on cosmetic outer panels. Who is correct?

Back 3

Technician A

Front 4

Technician A says that squeeze type resistance spot welders are recommended for welding sectioning joint seems.

Technician B says that today's squeeze type resistance spot welders are capable of making welds that look just like original spot welds. Who is correct?

Back 4

Technician B

Front 5

List three true statements about the squeeze type resistance spot welding process

Back 5

A. No filler metal required.

B. No filtered lens required.

C. Easy to learn.

Front 6

Technician A says that there must be the proper amount of power into the repair facility for a spot welder to make adequate welds. Technician B says that there must be the proper amount of power at the outlets for a spot welder to make adequate welds. Who is correct?

Back 6

Both A and B

Front 7

Technician a says that when making a spot weld, the current is usually on for 2 to 3 seconds. Technician B says that when making a spot weld, the electrode arms release immediately after the current turns off. Who is correct?

Back 7

Neither A nor B

Front 8

What is recommended for personal safety when spot welding without adhesives?

Back 8

safety glasses with side shields

Front 9

The purpose of the "hold time" in the spot welding process is to:

Back 9

Allow the weld to solidify.

Front 10

Technician a says that a squeeze type resistance spot weld is made in three stages. Technician B says that where a squeeze type resistance spot welder will not reach, a single-sided spot welder may be used. Who is correct?

Back 10

Technician A

Front 11

Technician A says that the high primary circuit voltage is transformed to low voltage to make the weld. Technician B says that the high primary circuit current is transformed to low current to make the weld. Who is correct?

Back 11

Technician A

Front 12

Technician A says that installing longer X-type arms may require higher inlet pressure to get proper squeeze pressure at the tips. Technician B say that some spot welding machines only have X-type arms. Who is correct?

Back 12

Both A and B

Front 13

Electrode tips stick to the workpiece when:

Back 13

Steel transfers to the tips.

Front 14

All of these are true about different types of electrode tips EXCEPT:

A. Can be angled

B. Some are made of steel alloy

C. Can be domed or flat on the end

D. Varying diameters

Back 14

B. Some are made of steel alloy

Front 15

Technician A says that removable electrode tip ends are usually threaded on. Technician B says that removable electrode tip ends will usually not "mushroom" like standard tips. Who is correct?

Back 15

Neither A nor B

Front 16

Generally, the larger the electrode tip diameter, the:

Back 16

More current required.

Front 17

Technician A says that some spot welders circulate coolant all the way to the tips. Technician B says that some spot welders use the same compressed air source for cooling as the inlet pressure. Who is correct?

Back 17

Both A and B

Front 18

Technician A says that some spot welders have a programmed setting for coated steel. Technician B says that some spot welders have a programmed setting for weld bonding. Who is correct?

Back 18

Both A and B

Front 19

An exceptionally large black ring around the spot weld is a usual indicator of:

Back 19

Too much time

Front 20

A display on the welder that reads "Too much clamping force" is an example of:

Back 20

A smart feature

Front 21

A flange is being prepared for spot welding with no adhesive. Technician A says that E-coat should be removed from the exterior of the flange. Technician B says that the zinc coating should be removed from the interior of the flange. Who is right?

Back 21

Technician A

Front 22

A shunt is required when there is:

Back 22

No metal to metal contact at the mating surfaces.

Front 23

"Pitch" refers to the:

Back 23

Distance between welds.

Front 24

Technician A says that many vehicles recommend making replacement spot welds close to original welds. Technician B says that replacement spot welds should not be made in the same spot as original welds. Who is right?

Back 24

Both tech A and B

Front 25

All of these commonly cause metal throwout EXCEPT:

A. Force too high

B. Squeeze time too short

C. Current too high

D. Poor fit up

Back 25

A. Force too high

Front 26

A peel or twist destructive test is successful only if:

Back 26

A proper size nugget pulls out of one piece

Front 27

Technician A says that a common cause of an oblong shaped weld is misaligned electrode tips. Technician B says that a common cause of too deep an indentation is the force set too high. Who is right?

Back 27

Both tech A and B

Front 28

Technician A says that staggered spacing of original spot welds is likely intentional. Technician B says that inconsistent sizing of original spot welds is likely intensional. Who is right?

Back 28

Both tech A and B

Front 29

Technician A says that welds made far inward from the flange require less current than welds on the flange. Technician B says that a magnetic field is flowing through the arm sets whenever the machine is turned on. Who is correct?

Back 29

Neither tech A or B

Front 30

Cleaning the E-coat of the mating surface flanges at the first weld site is:

Back 30

An alternative to using a shunt clamp.

Front 31

Welds bonding refers to using:

Back 31

A combination of welds and adhesives.

Front 32

All of these are reasons why vehicle makers recommend weld bonding EXCEPT:

A. Reduces noise, vibrations, and harshness.

B. Requires fewer replacement welds

C. Adds to corrosion resistance

D. Combines advantages of both processes

Back 32

B. Requires fewer replacement welds

Front 33

Technician A says that preparing the existing panel for weld bonding may require grinding weld nuggets flush. Technician B says that preparing the existing panel for weld bonding may require straightening the flange. Who is right?

Back 33

Both tech A and B

Front 34

All of these are typical characteristics of adhesives selected for weld bonding EXCEPT:

A. Electrically conductive

B. Bond line easily controlled

C. Two part

D. Corrosion resistant

Back 34

A. Electrically conductive

Front 35

Technician A says that when preparing the exterior of the flanges for weld bonding, the usual recommendation is to remove the zinc coating. Technician B says that when preparing mating flanges for weld bonding, the usual recommendation is to remove the zinc coating. Who is right?

Back 35

Both tech A and B

Front 36

The first step when preparing a new cartridge of two part adhesive is to:

Back 36

Level the plungers

Front 37

Technician A says that a peel destructive test is recommended for weld bond test samples. Technician B says that a twist destructive test is recommended for weld bond test samples. Who is correct?

Back 37

Technician A

Front 38

One of the most common vehicle maker recommendations when making repair spot welds is to:

Back 38

Avoid original locations

Front 39

Technician A says that spot welding while the adhesive is still wet is more difficult than waiting until the adhesive has cured. Technician B says that minor burning of the adhesive when weld bonding should not affect the integrity of the bond. Who is correct?

Back 39

Technician B

Front 40

Based on the Chrysler Group "Governing Metal Thickness" recommendation, the weld nugget diameter on a three thickness flange is based on the:

Back 40

Middle thickness of the three panels.