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