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