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