Basic Welding Knowledge Test
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This test is designed to test your basic welding knowledge, this is approximately to Certificate II level in trades such as Boilermaking or Fabricating. Please select the most appropriate answer.
- 1.
- A.
A gas that cools the weld zone to prevent cracking.
- B.
A gas that prevents porosity by burning a hot neutral flame.
- C.
A gas that does not chemically react with other elements to help produce a quality weld.
- D.
A gas that heats up the weld zone to create a better quality weld.
- 2.Stick (Arc) Welding uses a coated electrode, what is the purpose of this coating?
- A.
The coating insulates the welder from electric shocks.
- B.
The coating helps clean the weld zone from contaminates such as rust or paint.
- C.
The coating prevents water from damaging the electrode.
- D.
The coating produces a protective gas to prevent porosity.
- 3.Which weld procedure is safe to perform in wet conditions?
- A.
Oxy Welding
- B.
Arc Welding
- C.
MIG Welding
- D.
TIG Welding
- 4.What is the minimum recommended filter shade on a welding helmet to protect your eyes?
- A.
Shade 10
- B.
Shade 13
- C.
Shade 5
- D.
Clear lens
- 5.What type of respiratory protection is the minimum required when welding?
- A.
Dust mask
- B.
P2 Respirator
- C.
No protection is required
- D.
Hazmat suit
- 6.How would you prepare heavily rusted mild steel for welding?
- A.
Wash with soap and water
- B.
Grind back to bare metal
- C.
Nothing, I would weld over it
- D.
Give it a light sand with 240 grit sandpaper
- 7.What type of weld would you do to form a T shape between two pieces of flat bar?
- A.
Butt
- B.
Fillet
- C.
Edge
- D.
Outside Corner
- 8.
- A.
It works well in the wind.
- B.
You can safely weld in wet conditions with it
- C.
It takes less operator skill than other weld types
- D.
It is slow and accurate which is good for very thin metal
- 9.
- A.
Give it a quick grind to make sure the metal is clean
- B.
Grind a single bevel preparation
- C.
Nothing
- D.
Grind a double V preparation
- 10.
- A.
Contact tip and shroud
- B.
Contact tip and drive rollers
- C.
Gas diffuser and drive rollers
- D.
Gas bottle and earth clamp
- 11.What treatment is recommended after welding stainless steel?
- A.
No treatment required for stainless
- B.
Quench in water to remove oxides
- C.
Apply pickling paste
- D.
Oil to stop rust
- 12.When performing a fillet weld between two pieces of 5mm thick mild steel, what is the recommended size (leg length) of the weld? (when not given a size)
- A.
5mm
- B.
10mm
- C.
7.5mm
- D.
3mm
- 13.
- A.
Put it back in the store
- B.
Only use it one more time, then get it fixed
- C.
Take it out of service, report it and if required, tag it
- D.
Do nothing
- 14.Why shouldn't you wear nylon clothing when welding?
- A.
Because you will get too sweaty
- B.
It is fine to wear
- C.
Because static electricity can build up cause shocks
- D.
Because it can catch fire easily and melt to your skin
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