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Test your basic knowledge |
Welding
Start Test
Study First
Subject
:
engineering
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 D
Metal - get outside
Metal thickness - joint position - joint design
Short circuit transfer
No
2. Cutting and welding tip are made of...
15 psi
12-15 CFH
Angle of elect- rod
Copper
3. GMAW short circuit transfer can be used for...
250 psi
Out of position work - thin gage metal - and good deposition rates
Current
2800 F
4. 60
Short circuit transfer
Not turned in all the way
1245 F
Tensile strength
5. How are dirt particles removed from cutting and welding tips
Tip cleaners
Oil - Dry Chemical
Copper
Length of arc
6. M
10
Cover your eyes
Position
Manipulation of puddle
7. The deepest penetration is a result of which gun technique
No
Drag
10
Metal - get outside
8. What shade of lens should you use for stick welding
Copper
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Oil - Dry Chemical
10
9. The Hottest oxy- acetylene flame
Ask - water
420 F
Tensile strength
Oxidizing
10. For short circuit transfer the contact tube should be...
DCT
Flush with or slightly extending from the nozzle - matched in size to wire diameter - and fastened tight
Metal thickness - joint position - joint design
Oxidizing
11. Can you weld vertical up with 7024
Manipulation of puddle
Oxidizing
Current
No
12. Class C
2200 F
Electrical - secure power and CO2
Improper work angles - lack of a heat sink - and improper parameters
1640 F
13. Melting temperature of Aluminum
Copper
2800 F
Contact tube
1245 F
14. What type of polarity is best for welding out of position
Tensile strength
DCT
None of the above
Oxygen
15. Melting temperature of Steel
Oil - Dry Chemical
Tensile strength
No
2200 F
16. An oxygen cylinder valve should be...
Oil - Dry Chemical
Opened slowly
Speed of travel
Increased
17. Undercut on fillet welds can be a result of...
Improper work angles - lack of a heat sink - and improper parameters
Angle of elect- rod
Not turned in all the way
Contact tube
18. Duty cycle of a welding machine is based on the...
Ask - water
None of the above
250 psi
10
19. Melting temperature of Solder
Length of arc
Drag
Position
420 F
20. 1
15 psi
Type of flux/polarity
Current
Speed of travel
21. What should we do when the word cover is spoken
DCT
Cover your eyes
Copper
Improper work angles - lack of a heat sink - and improper parameters
22. A
250 psi
Position
Angle of elect- rod
Contact tube
23. Class B
The valve from breaking off
Drag
Oil - Dry Chemical
No
24. When not in user the regulater adjusting screw should be...
2800 F
Type of flux/polarity
Not turned in all the way
The valve from breaking off
25. The main tool used to control the height and width of the weld bead is...
Manipulation of puddle
2200 F
Electrode extension
15 psi
26. S
Drag
2800 F
Increased
Speed of travel
27. Fine tuning amperage will depend upon
250 psi
Drag
Increased
Metal thickness - joint position - joint design
28. Melting temperature of Brass
Electrode extension
No
Contact tube
1640 F
29. To stop Back firing or popping the gas flow through the tip should be...
Increased
DCT
Type of flux/polarity
Oxidizing
30. What comes out the center of the hole in a cutting tip
Improper work angles - lack of a heat sink - and improper parameters
Oxygen
Type of flux/polarity
Metal thickness - joint position - joint design
31. Shielding gas flow rates will vary but a common starting point for short circuit transfer is...
12-15 CFH
None of the above
Increased
Electrical - secure power and CO2
32. Class A
Oxygen
Copper
Ask - water
DCT
33. L
Length of arc
The valve from breaking off
10
Ask - water
34. The main purpose for a shielding gas cylinder cap is to protect
Manipulation of puddle
The valve from breaking off
2800 F
Ask - water
35. Welding in the flat position on thin material is generally welded with the...
Cover your eyes
Short circuit transfer
Speed of travel
The valve from breaking off
36. Acetylene not contained in suitable cylinder is not safe above
Increased
Position
Not turned in all the way
15 psi
37. Melting temperature of Grey Cast Iron
2800 F
Out of position work - thin gage metal - and good deposition rates
Current
Copper
38. Which metal cant be safely used in the presences of acetylene
12-15 CFH
Type of flux/polarity
250 psi
Copper
39. Full tank pressure for an acetylene cylinder is...
Electrical - secure power and CO2
250 psi
1245 F
Electrode extension
40. Welding current is transmitted to the GMAW wire through the...
420 F
Contact tube
Tensile strength
Copper
41. 1
Tip cleaners
None of the above
Position
Current
42. C
No
Metal - get outside
Current
Oxygen