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 Brass
Type of flux/polarity
Length of arc
1640 F
2800 F

2. L
250 psi
Short circuit transfer
Position
Length of arc

3. Can you weld vertical up with 7024
Type of flux/polarity
Metal thickness - joint position - joint design
15 psi
No

4. What comes out the center of the hole in a cutting tip
Current
No
Cover your eyes
Oxygen

5. Melting temperature of Grey Cast Iron
Electrical - secure power and CO2
Tensile strength
2800 F
Improper work angles - lack of a heat sink - and improper parameters

6. Fine tuning amperage will depend upon
12-15 CFH
Opened slowly
No
Metal thickness - joint position - joint design

7. Full tank pressure for an acetylene cylinder is...
1640 F
250 psi
The valve from breaking off
Out of position work - thin gage metal - and good deposition rates

8. The main tool used to control the height and width of the weld bead is...
Electrode extension
15 psi
Electrical - secure power and CO2
No

9. For short circuit transfer the contact tube should be...
Cover your eyes
Drag
Current
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight

10. Melting temperature of Solder
1640 F
Copper
250 psi
420 F

11. C
Drag
Current
Improper work angles - lack of a heat sink - and improper parameters
Speed of travel

12. The deepest penetration is a result of which gun technique
Contact tube
Drag
Type of flux/polarity
Out of position work - thin gage metal - and good deposition rates

13. 1
Type of flux/polarity
Speed of travel
250 psi
The valve from breaking off

14. 60
2800 F
Tensile strength
Current
Length of arc

15. Melting temperature of Steel
Drag
Length of arc
DCT
2200 F

16. What should we do when the word cover is spoken
Metal - get outside
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
1640 F
Cover your eyes

17. Class C
Out of position work - thin gage metal - and good deposition rates
Position
Electrical - secure power and CO2
Short circuit transfer

18. An oxygen cylinder valve should be...
1640 F
Speed of travel
Copper
Opened slowly

19. The main purpose for a shielding gas cylinder cap is to protect
Oil - Dry Chemical
The valve from breaking off
DCT
Tip cleaners

20. Welding current is transmitted to the GMAW wire through the...
Current
Contact tube
Oil - Dry Chemical
Not turned in all the way

21. Class D
Not turned in all the way
Metal - get outside
2800 F
Oil - Dry Chemical

22. Cutting and welding tip are made of...
The valve from breaking off
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Copper
Drag

23. How are dirt particles removed from cutting and welding tips
Not turned in all the way
Oxidizing
Speed of travel
Tip cleaners

24. Shielding gas flow rates will vary but a common starting point for short circuit transfer is...
12-15 CFH
2200 F
1640 F
Oxidizing

25. The Hottest oxy- acetylene flame
No
Oxidizing
Drag
Contact tube

26. To stop Back firing or popping the gas flow through the tip should be...
Increased
No
250 psi
Length of arc

27. A
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Improper work angles - lack of a heat sink - and improper parameters
Angle of elect- rod
Cover your eyes

28. Acetylene not contained in suitable cylinder is not safe above
Ask - water
Short circuit transfer
Type of flux/polarity
15 psi

29. When not in user the regulater adjusting screw should be...
Copper
DCT
Not turned in all the way
Ask - water

30. Undercut on fillet welds can be a result of...
Opened slowly
Metal thickness - joint position - joint design
10
Improper work angles - lack of a heat sink - and improper parameters

31. Welding in the flat position on thin material is generally welded with the...
Short circuit transfer
Tip cleaners
Metal thickness - joint position - joint design
250 psi

32. Duty cycle of a welding machine is based on the...
None of the above
Metal thickness - joint position - joint design
Cover your eyes
The valve from breaking off

33. What type of polarity is best for welding out of position
DCT
Contact tube
Increased
Improper work angles - lack of a heat sink - and improper parameters

34. M
2800 F
Manipulation of puddle
Type of flux/polarity
Tip cleaners

35. Class B
Improper work angles - lack of a heat sink - and improper parameters
Short circuit transfer
Oil - Dry Chemical
Cover your eyes

36. Class A
2200 F
Angle of elect- rod
Tensile strength
Ask - water

37. GMAW short circuit transfer can be used for...
Short circuit transfer
Out of position work - thin gage metal - and good deposition rates
Oxidizing
1245 F

38. 1
15 psi
Position
Out of position work - thin gage metal - and good deposition rates
Ask - water

39. What shade of lens should you use for stick welding
Ask - water
10
Electrical - secure power and CO2
Oxidizing

40. S
Speed of travel
Angle of elect- rod
12-15 CFH
Opened slowly

41. Which metal cant be safely used in the presences of acetylene
Copper
Drag
Ask - water
2800 F

42. Melting temperature of Aluminum
2200 F
Ask - water
1245 F
Speed of travel