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