Test your basic knowledge |

Welding

Instructions:

Answer 42 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Melting temperature of Aluminum
2200 F
1245 F
1640 F
Opened slowly

2. Melting temperature of Grey Cast Iron
DCT
1245 F
2800 F
Metal - get outside

3. The deepest penetration is a result of which gun technique
Short circuit transfer
Drag
Metal thickness - joint position - joint design
15 psi

4. What should we do when the word cover is spoken
Cover your eyes
Not turned in all the way
Type of flux/polarity
1245 F

5. Cutting and welding tip are made of...
Copper
420 F
Speed of travel
None of the above

6. 1
Increased
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Opened slowly
Position

7. C
Position
Speed of travel
Not turned in all the way
Current

8. When not in user the regulater adjusting screw should be...
1640 F
Not turned in all the way
Copper
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight

9. What type of polarity is best for welding out of position
DCT
2200 F
1640 F
Improper work angles - lack of a heat sink - and improper parameters

10. Duty cycle of a welding machine is based on the...
None of the above
2200 F
1245 F
2800 F

11. The Hottest oxy- acetylene flame
Improper work angles - lack of a heat sink - and improper parameters
Drag
Metal thickness - joint position - joint design
Oxidizing

12. Class B
Electrode extension
The valve from breaking off
Oil - Dry Chemical
Opened slowly

13. What shade of lens should you use for stick welding
Cover your eyes
1245 F
Out of position work - thin gage metal - and good deposition rates
10

14. Melting temperature of Solder
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Short circuit transfer
420 F
Cover your eyes

15. Welding current is transmitted to the GMAW wire through the...
Type of flux/polarity
Oil - Dry Chemical
12-15 CFH
Contact tube

16. The main tool used to control the height and width of the weld bead is...
Copper
1245 F
Angle of elect- rod
Electrode extension

17. To stop Back firing or popping the gas flow through the tip should be...
420 F
Manipulation of puddle
Short circuit transfer
Increased

18. M
1245 F
Manipulation of puddle
Metal - get outside
Drag

19. Class D
Metal - get outside
Not turned in all the way
Increased
Drag

20. L
The valve from breaking off
12-15 CFH
DCT
Length of arc

21. Welding in the flat position on thin material is generally welded with the...
Speed of travel
Short circuit transfer
Opened slowly
Oil - Dry Chemical

22. 60
Tensile strength
Increased
2800 F
Length of arc

23. Class A
Position
Ask - water
Out of position work - thin gage metal - and good deposition rates
The valve from breaking off

24. An oxygen cylinder valve should be...
Opened slowly
Tensile strength
15 psi
12-15 CFH

25. Melting temperature of Brass
1640 F
Copper
Improper work angles - lack of a heat sink - and improper parameters
Metal thickness - joint position - joint design

26. Shielding gas flow rates will vary but a common starting point for short circuit transfer is...
Tip cleaners
Cover your eyes
2800 F
12-15 CFH

27. How are dirt particles removed from cutting and welding tips
Tip cleaners
Current
15 psi
Angle of elect- rod

28. Class C
Copper
Speed of travel
Electrical - secure power and CO2
DCT

29. Melting temperature of Steel
Oxidizing
Length of arc
2200 F
Short circuit transfer

30. Fine tuning amperage will depend upon
Metal thickness - joint position - joint design
Speed of travel
Out of position work - thin gage metal - and good deposition rates
Manipulation of puddle

31. Undercut on fillet welds can be a result of...
Length of arc
None of the above
Cover your eyes
Improper work angles - lack of a heat sink - and improper parameters

32. Can you weld vertical up with 7024
No
Cover your eyes
Electrode extension
DCT

33. Which metal cant be safely used in the presences of acetylene
No
Ask - water
Opened slowly
Copper

34. What comes out the center of the hole in a cutting tip
Oxygen
Oil - Dry Chemical
2800 F
Tensile strength

35. For short circuit transfer the contact tube should be...
Copper
No
Improper work angles - lack of a heat sink - and improper parameters
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight

36. 1
Drag
Electrode extension
Out of position work - thin gage metal - and good deposition rates
Type of flux/polarity

37. S
Tensile strength
250 psi
2200 F
Speed of travel

38. GMAW short circuit transfer can be used for...
Copper
Out of position work - thin gage metal - and good deposition rates
Position
Metal - get outside

39. A
Ask - water
Angle of elect- rod
None of the above
Length of arc

40. Acetylene not contained in suitable cylinder is not safe above
15 psi
Increased
The valve from breaking off
12-15 CFH

41. The main purpose for a shielding gas cylinder cap is to protect
The valve from breaking off
15 psi
Current
2800 F

42. Full tank pressure for an acetylene cylinder is...
250 psi
Position
Opened slowly
Improper work angles - lack of a heat sink - and improper parameters