Collision Blast - Welding

1. Vehicles are attached together with a variety of methods. One of the methods consist of welds.

True

False

2. What could result if a repair technician does not properly weld the repair on a structural part.

The welds are hidden, they will never know.

May not hold up if in an accident, which could lead to unnecessary injuries.

As long as a few of the welds have good penetration, it will be fine.

3. The most important think to remember to become a professional welder is that it takes hours of hands-on practice.

True

False

4. To have a fire, you must have an ignition source, fuel and:

Gasoline

Nothing else is needed.

Oxygen.

Acetylene.

5. Proper penetration is the most important concern when providing quality welds.

True

False

6. A triggering technique can be used to prevent over heating thin metal.

Butt Weld

True

False

7. One of the three elements to create fire is oxygen.

True

False

8. When it's all said and done, the correct penetration is what creates a good weld.

True

False

9. MIG welding is the easiest welding to learn. It only takes a couple of hours to perfect the welds and consider your self an expert welder.

True

False

10. You should disconnect the negative battery cable when welding on a vehicle.

True

False

11. There are three types of welds performed in auto body repair. Those three are:.plug welds, lap or fillet welds, and butt welds. The butt weld can be an open butt (without a backing plate) or it may use a backing plate when performed.

True

False

12. One benefit of the factory welds is that there is not filler rod used, which does not add any weight to the vehicle.

True

False

13. What PSI does a full oxygen bottle have?

225 psi

2200 psi

10,000 psi

850 psi

14. What is the purpose of weld-through-primer.

To fill in the scratched left by the grinder.

A coating applied after welded to improve adhesion for additional adhesion.

To provide corrosion protection to enclosed welded areas that you will not have access to after welded.

There is not such thing as weld-through-primer

15. If an area has been welded, but the weld area is not visible, the welded area needs to be sealed with seam sealer.

True

False

16. It is better to place the work clamp as far away as possible to eliminate the risk of being electrocuted.

True

False

the work clamp should be placed as close to the work area.

Explanation

the work clamp should be placed as close to the work area.

17. What type of welds are the majority welds from the factory?

Plug Welds

Spot Welds

Lap Welds

Butt Welds

18. What is the recommended size of hole use when performing a plug weld?

5 mm

1/2"

This weld type does not require a hole.

8 mm

19. One method to reproduce a factor spot weld is using a MIG welder. The weld that is used to replace the spot weld is called:

MIG spot weld

MIG weld

Plug Weld

Aftermarket spot weld.

20. As a rule of thumb, you should_________ electrical components within 12" from the welding work area.

Cover.

Unplug.

Remove.

Replace.

21. The welding chart will give you the exact setting that you should weld with. Do not readjust once the welder is set to the recommended settings.

True

False

the chart is a starting place. The fine tuning will depend on each individual welder.

Explanation

the chart is a starting place. The fine tuning will depend on each individual welder.

22. Technician A says that galvanized coating should not be removed when welding. Technician B says that extra care must be taken when welding galvanized steel as it is harmful to breath the welding fumes. Who is correct?

Technician A Only

Technician B Only

Both Technician A and B

Neither Technician A or B