Test your basic knowledge of Welding

Test your basic knowledge |

Instructions:

Answer 42 questions in 15 minutes.
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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. Full tank pressure for an acetylene cylinder is...
250 psi
No
420 F
Speed of travel

2. What shade of lens should you use for stick welding
Copper
1640 F
Drag
10

3. How are dirt particles removed from cutting and welding tips
Tip cleaners
Electrode extension
None of the above
DCT

4. For short circuit transfer the contact tube should be...
Not turned in all the way
None of the above
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Electrical - secure power and CO2

5. When not in user the regulater adjusting screw should be...
Length of arc
Type of flux/polarity
Not turned in all the way
No

6. M
Manipulation of puddle
Short circuit transfer
10
Electrode extension

7. Welding in the flat position on thin material is generally welded with the...
Opened slowly
The valve from breaking off
Short circuit transfer
Oxidizing

8. What should we do when the word cover is spoken
Cover your eyes
Electrode extension
None of the above
Oxygen

9. GMAW short circuit transfer can be used for...
Drag
Manipulation of puddle
Out of position work - thin gage metal - and good deposition rates
Tensile strength

10. Welding current is transmitted to the GMAW wire through the...
Contact tube
Manipulation of puddle
Electrical - secure power and CO2
250 psi

11. Class B
Increased
Oil - Dry Chemical
Opened slowly
420 F

12. To stop Back firing or popping the gas flow through the tip should be...
Electrical - secure power and CO2
Increased
Ask - water
Type of flux/polarity

13. L
Electrode extension
Electrical - secure power and CO2
1245 F
Length of arc

14. The main tool used to control the height and width of the weld bead is...
250 psi
Electrode extension
Position
1640 F

15. 1
12-15 CFH
Length of arc
Oil - Dry Chemical
Position

16. Melting temperature of Solder
No
Short circuit transfer
420 F
The valve from breaking off

17. C
Metal thickness - joint position - joint design
Angle of elect- rod
Current
Metal - get outside

18. A
Oxygen
Short circuit transfer
Oil - Dry Chemical
Angle of elect- rod

19. Undercut on fillet welds can be a result of...
Copper
Improper work angles - lack of a heat sink - and improper parameters
Drag
Metal thickness - joint position - joint design

20. S
Improper work angles - lack of a heat sink - and improper parameters
Speed of travel
Opened slowly
No

21. Acetylene not contained in suitable cylinder is not safe above
Tip cleaners
15 psi
No
Metal - get outside

22. Class C
Metal thickness - joint position - joint design
Ask - water
Oxidizing
Electrical - secure power and CO2

23. Cutting and welding tip are made of...
Tip cleaners
Position
2200 F
Copper

24. 1
Copper
Type of flux/polarity
Tip cleaners
Opened slowly

25. What type of polarity is best for welding out of position
Tip cleaners
Not turned in all the way
DCT
Improper work angles - lack of a heat sink - and improper parameters

26. Class D
Metal - get outside
Length of arc
1245 F
12-15 CFH

27. Which metal cant be safely used in the presences of acetylene
Increased
The valve from breaking off
Ask - water
Copper

28. Melting temperature of Aluminum
1245 F
Oxidizing
Metal thickness - joint position - joint design
Tensile strength

29. Can you weld vertical up with 7024
No
Type of flux/polarity
Current
Tensile strength

30. The Hottest oxy- acetylene flame
Oil - Dry Chemical
Position
Oxygen
Oxidizing

31. 60
Metal - get outside
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Tensile strength
Position

32. Melting temperature of Steel
10
Cover your eyes
Tip cleaners
2200 F

33. Fine tuning amperage will depend upon
Metal thickness - joint position - joint design
None of the above
Electrode extension
10

34. What comes out the center of the hole in a cutting tip
250 psi
Cover your eyes
Length of arc
Oxygen

35. Melting temperature of Grey Cast Iron
2800 F
2200 F
Oxygen
1640 F

36. The main purpose for a shielding gas cylinder cap is to protect
Current
Contact tube
The valve from breaking off
Copper

37. Shielding gas flow rates will vary but a common starting point for short circuit transfer is...
The valve from breaking off
12-15 CFH
Position
Copper

38. Class A
Angle of elect- rod
Ask - water
12-15 CFH
Improper work angles - lack of a heat sink - and improper parameters

39. Melting temperature of Brass
Angle of elect- rod
Position
1640 F
1245 F

40. The deepest penetration is a result of which gun technique
Contact tube
Copper
Drag
None of the above

41. An oxygen cylinder valve should be...
420 F
Contact tube
Opened slowly
Current

42. Duty cycle of a welding machine is based on the...
2200 F
None of the above
Oil - Dry Chemical
The valve from breaking off

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Test your basic knowledge |

Welding

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