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
Current
1640 F
The valve from breaking off
No

2. C
Current
Tensile strength
1245 F
Oxidizing

3. S
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
250 psi
Out of position work - thin gage metal - and good deposition rates
Speed of travel

4. A
1245 F
12-15 CFH
1640 F
Angle of elect- rod

5. Can you weld vertical up with 7024
No
Copper
250 psi
Oxygen

6. GMAW short circuit transfer can be used for...
Electrical - secure power and CO2
Out of position work - thin gage metal - and good deposition rates
Metal - get outside
Opened slowly

7. Class A
Not turned in all the way
Metal - get outside
Ask - water
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight

8. The Hottest oxy- acetylene flame
Oxidizing
Not turned in all the way
Current
Copper

9. Welding in the flat position on thin material is generally welded with the...
Short circuit transfer
Not turned in all the way
Tensile strength
The valve from breaking off

10. What should we do when the word cover is spoken
Cover your eyes
2800 F
Improper work angles - lack of a heat sink - and improper parameters
Tip cleaners

11. Melting temperature of Solder
420 F
Angle of elect- rod
No
1245 F

12. For short circuit transfer the contact tube should be...
Oil - Dry Chemical
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
1245 F

13. The deepest penetration is a result of which gun technique
Not turned in all the way
10
Drag
2200 F

14. Melting temperature of Grey Cast Iron
Oil - Dry Chemical
Position
Cover your eyes
2800 F

15. Which metal cant be safely used in the presences of acetylene
Copper
Oxygen
Tensile strength
10

16. To stop Back firing or popping the gas flow through the tip should be...
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Angle of elect- rod
Increased
Length of arc

17. Acetylene not contained in suitable cylinder is not safe above
Tip cleaners
15 psi
250 psi
1245 F

18. Shielding gas flow rates will vary but a common starting point for short circuit transfer is...
Tensile strength
The valve from breaking off
Opened slowly
12-15 CFH

19. What type of polarity is best for welding out of position
Oxidizing
2800 F
10
DCT

20. M
None of the above
2200 F
Out of position work - thin gage metal - and good deposition rates
Manipulation of puddle

21. 1
Current
2200 F
420 F
Position

22. Class B
Tensile strength
Length of arc
None of the above
Oil - Dry Chemical

23. The main purpose for a shielding gas cylinder cap is to protect
Short circuit transfer
No
None of the above
The valve from breaking off

24. What shade of lens should you use for stick welding
DCT
10
Copper
1245 F

25. 1
Angle of elect- rod
10
Type of flux/polarity
2200 F

26. How are dirt particles removed from cutting and welding tips
Tip cleaners
Electrical - secure power and CO2
Manipulation of puddle
Oil - Dry Chemical

27. Melting temperature of Aluminum
1245 F
The valve from breaking off
1640 F
Current

28. L
Opened slowly
Metal thickness - joint position - joint design
Oxidizing
Length of arc

29. Melting temperature of Steel
Drag
No
2200 F
Copper

30. Cutting and welding tip are made of...
12-15 CFH
Copper
Contact tube
420 F

31. When not in user the regulater adjusting screw should be...
Not turned in all the way
DCT
Oxygen
Out of position work - thin gage metal - and good deposition rates

32. An oxygen cylinder valve should be...
The valve from breaking off
Opened slowly
Tip cleaners
Cover your eyes

33. What comes out the center of the hole in a cutting tip
Improper work angles - lack of a heat sink - and improper parameters
Metal thickness - joint position - joint design
Copper
Oxygen

34. Undercut on fillet welds can be a result of...
Improper work angles - lack of a heat sink - and improper parameters
Angle of elect- rod
2200 F
Out of position work - thin gage metal - and good deposition rates

35. Full tank pressure for an acetylene cylinder is...
Contact tube
Metal thickness - joint position - joint design
250 psi
420 F

36. Fine tuning amperage will depend upon
Position
Metal thickness - joint position - joint design
Angle of elect- rod
Drag

37. Class C
2200 F
Not turned in all the way
Electrical - secure power and CO2
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight

38. Duty cycle of a welding machine is based on the...
None of the above
DCT
Type of flux/polarity
Manipulation of puddle

39. 60
Tensile strength
Oxidizing
DCT
Current

40. Class D
Metal - get outside
DCT
Contact tube
None of the above

41. The main tool used to control the height and width of the weld bead is...
1245 F
Opened slowly
Electrode extension
Tip cleaners

42. Welding current is transmitted to the GMAW wire through the...
420 F
None of the above
Contact tube
Out of position work - thin gage metal - and good deposition rates