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. Class B
Electrical - secure power and CO2
Oil - Dry Chemical
Copper
The valve from breaking off

2. Welding current is transmitted to the GMAW wire through the...
Out of position work - thin gage metal - and good deposition rates
Length of arc
Contact tube
Current

3. Melting temperature of Solder
Not turned in all the way
Angle of elect- rod
420 F
15 psi

4. Class D
12-15 CFH
250 psi
Metal thickness - joint position - joint design
Metal - get outside

5. Shielding gas flow rates will vary but a common starting point for short circuit transfer is...
250 psi
12-15 CFH
Ask - water
Increased

6. S
15 psi
Speed of travel
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Oxygen

7. Can you weld vertical up with 7024
Oil - Dry Chemical
1245 F
The valve from breaking off
No

8. An oxygen cylinder valve should be...
Out of position work - thin gage metal - and good deposition rates
2200 F
Oxidizing
Opened slowly

9. Welding in the flat position on thin material is generally welded with the...
Electrical - secure power and CO2
Short circuit transfer
2800 F
420 F

10. Which metal cant be safely used in the presences of acetylene
Drag
Copper
Type of flux/polarity
Position

11. 1
Improper work angles - lack of a heat sink - and improper parameters
Position
12-15 CFH
10

12. Fine tuning amperage will depend upon
Metal thickness - joint position - joint design
Electrode extension
Manipulation of puddle
Oxygen

13. What should we do when the word cover is spoken
Oxygen
Electrical - secure power and CO2
Increased
Cover your eyes

14. L
Out of position work - thin gage metal - and good deposition rates
Length of arc
250 psi
The valve from breaking off

15. GMAW short circuit transfer can be used for...
Improper work angles - lack of a heat sink - and improper parameters
10
Not turned in all the way
Out of position work - thin gage metal - and good deposition rates

16. The Hottest oxy- acetylene flame
Current
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Copper
Oxidizing

17. Full tank pressure for an acetylene cylinder is...
250 psi
None of the above
10
Electrical - secure power and CO2

18. Class A
Length of arc
15 psi
Ask - water
Increased

19. Cutting and welding tip are made of...
Speed of travel
Out of position work - thin gage metal - and good deposition rates
Copper
Length of arc

20. What type of polarity is best for welding out of position
Angle of elect- rod
Short circuit transfer
Ask - water
DCT

21. Melting temperature of Grey Cast Iron
1640 F
Type of flux/polarity
2800 F
420 F

22. When not in user the regulater adjusting screw should be...
Not turned in all the way
Copper
10
None of the above

23. What shade of lens should you use for stick welding
10
None of the above
Tip cleaners
Electrical - secure power and CO2

24. Melting temperature of Brass
The valve from breaking off
Improper work angles - lack of a heat sink - and improper parameters
Cover your eyes
1640 F

25. M
Manipulation of puddle
2800 F
Oxygen
Improper work angles - lack of a heat sink - and improper parameters

26. Class C
DCT
Electrical - secure power and CO2
Copper
Cover your eyes

27. 1
Out of position work - thin gage metal - and good deposition rates
Electrode extension
Oxidizing
Type of flux/polarity

28. C
Current
15 psi
Metal - get outside
Not turned in all the way

29. Duty cycle of a welding machine is based on the...
1640 F
None of the above
Oil - Dry Chemical
Copper

30. Melting temperature of Steel
Short circuit transfer
Speed of travel
2200 F
Current

31. Melting temperature of Aluminum
Electrical - secure power and CO2
10
1245 F
2800 F

32. What comes out the center of the hole in a cutting tip
Oxygen
Length of arc
1640 F
None of the above

33. For short circuit transfer the contact tube should be...
1245 F
Oil - Dry Chemical
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Electrical - secure power and CO2

34. How are dirt particles removed from cutting and welding tips
Oil - Dry Chemical
Not turned in all the way
Tip cleaners
2800 F

35. Undercut on fillet welds can be a result of...
Improper work angles - lack of a heat sink - and improper parameters
Contact tube
250 psi
Increased

36. Acetylene not contained in suitable cylinder is not safe above
Short circuit transfer
1640 F
15 psi
Copper

37. The main tool used to control the height and width of the weld bead is...
Tensile strength
Manipulation of puddle
Ask - water
Electrode extension

38. The main purpose for a shielding gas cylinder cap is to protect
The valve from breaking off
1245 F
Position
No

39. 60
Copper
Tensile strength
2200 F
None of the above

40. A
Angle of elect- rod
Metal thickness - joint position - joint design
The valve from breaking off
2200 F

41. To stop Back firing or popping the gas flow through the tip should be...
Tensile strength
Increased
Oil - Dry Chemical
Oxygen

42. The deepest penetration is a result of which gun technique
Electrical - secure power and CO2
Electrode extension
Type of flux/polarity
Drag