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Instructional Technology, Specialty, Architecture
9th -
12thgrade
Oxy-Acetylene Set up/ Safety Assessment
42 questions
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- 1. Multiple ChoiceOxygen is represented by which colorRedGreenBlueYellow
- 2. Multiple ChoiceAcetylene is represented by which colorBlueRedYellowGreen
- 3. Multiple Choice
In the Oxy-Acetylene rig, the Acetylene gas is used to
produce the flame
oxidize the metal
blow metal from the cut
stabilize the flame
- 4. Multiple Choice
In the Oxy-Acetylene torch, pressing the oxygen lever down is used to
cool the metal
produce the flame
blow metal from the cut
- 5. Multiple Choice
The correct shade lens for brazing or cutting with the oxy-acetylene rig is
1
5
2
8
- 6. Multiple ChoiceGas leaks on an oxy-acetylene rig are checked withcompressed airsoapy waterflameteflon
- 7. Multiple ChoiceThe acetylene line pressure should never exceed5 psi10 psi15 psi20 psi
- 8. Multiple Choice
The acetylene tank valve should be opened _________ turn for safety reasons.
1/2
2
all the way
- 9. Multiple ChoiceRemoving gas from oxyacetylene lines is known aspressure releaseline maintenanceline purgingbleeding the lines
- 10. Multiple ChoiceAn orifice isan edgea hole in the tipa type of torcha type of tip
- 11. Multiple Choice
A backfire is a short pop of the torch flame followed by extinguishing of the flame or continued burning of the gases.
True
False
- 12. Multiple Choice
Regulators reduce the high storage cylinder pressure to a suitable working pressure.
True
False
- 13. Multiple Choice
When moving cylinders, be certain they are tied to the cart securely.
True
False
- 14. Multiple Choice
To light the oxyacetylene torch, it is okay to use a lighter.
True
False
- 15. Multiple Choice
What do we check before setting up the torch?
The regulators have pressure
the T screws are set
The Valves are only open 1 turn
The regulators are at 0
- 16. Multiple Choice
Before you can back out the T screw or adjustment knob what must you do?
Release pressure from regulators
Wrap up lines
Purge acetylene from torch tip
close tank valves
- 17. Multiple Choice
When opening the oxygen tank, how far to we open the valve?
All the way
Half way
One turn
Half a turn
- 18. Multiple ChoiceWhat gas does the long lever on an oxy-acetylene cutting torch control?oxygen cutting gasoxygen preheat gasacetylene cutting gasacetylene preheat gas
- 19. Multiple Choice
Which gas is always turned on first?
oxygen
fuel / Acetylene
- 20. Multiple ChoiceWill pure acetylene burn?yesno
- 21. Multiple ChoiceYou could die from improperly using oxy-acetylene.truefalse
- 22. Multiple Choice
After attaching hoses before igniting the gas, you should always check for leaks using which recomended method?
Feeling for air
Spray soapy water on connections
just over tighten and not check
- 23. Multiple Choice
The torch components should be assembled hand tight then checked for leaks.
True
False
- 24. Multiple Choice
The _______ ________ is used to increase or decrease the gas pressure delivered to the torch from the regulator.
idle screw
adjusting screw
cylinder screw
thumb screw
- 25. Multiple Choice
Disturbing another student while he/she is working is dangerous
True
False
- 26. Multiple Choice
Do not weld or cut on a closed container
True
False
- 27. Multiple Choice
Protect hoses from sparks, falling metal & from being walked on
True
False
- 28. Multiple Choice
What is the purpose of Preheat flames?
Heating the metal
Oxidizes/Burns the metal
Cleaning the metal surface
- 29. Multiple Choice
Identify part 'A' on the Oxy-Acetylene cutting torch setup
Acetylene Tank
Oxygen Tank
Regulators
Cutting Torch
- 30. Multiple Choice
Identify part 'C' on the Oxy-Acetylene cutting torch setup
Acetylene Tank
Oxygen Tank
Regulators
Cutting Torch
- 31. Multiple Choice
Identify part 'D' on the Oxy-Acetylene cutting torch body and attachment.
Cutting Tip
Cutting Torch Attachment/ Oxygen Valve
Cutting Lever
Torch Handle Valves
- 32. Multiple Choice
Identify part 'A' on the Oxy-Acetylene cutting torch body and attachment.
Cutting Tip
Cutting Torch Attachment
Cutting Lever
Torch Handle Valves
- 33. Multiple Choice
Identify part 'C' on the Oxy-Acetylene cutting torch body and attachment.
Cutting Tip
Cutting Torch Attachment
Cutting Lever
Torch Handle Valves
- 34. Multiple Choice
Identify part 'B' on the Oxy-Acetylene cutting torch body and attachment.
Cutting Tip
Cutting Torch Attachment
Cutting Lever
Torch Handle Valves
- 35. Multiple Choice
After you have finished welding and/or cutting, what should be done to turn off the entire system before you leave class?
close the valves at the cylinders or manifold
bleed the lines
back off the regulator adjusting screws
you must do all of the things listed to ensure the entire system is off
- 36. Multiple ChoiceAnyone welding, brazing, or watching the flame must:squintwear orange lenseswear welding face shield with Shade 5 lensewear an arc welding helmet
- 37. Multiple ChoiceCylinders should be set so that they are:upright and secureanywhere in the shoplaying on their sidenone of the options are correct
- 38. Multiple ChoiceBefore you turn on main cylinder valves:make sure the regulator tension screw is looseset the regulator at the desired pressurereplace the cylinder capselect the correct welding tip
- 39. Multiple Choice
____________ is mixed with acetylene to make it hotter when burned
pure oxygen
pure hydrogen
pure nitrogen
pure carbon
- 40. Multiple Choice
Oxygen cylinders have these types of threads.
Clockwise
Counter Clockwise
- 41. Multiple Choice
Acetylene cylinders have this type of threads.
Clockwise
Counter Clockwise
- 42. Multiple ChoiceWhat is flashback?a burn on your eyes from UV lightwhen fire goes back inside the the torch or linea loud popping noise when weldingwhen molten metal sparks up towards the operator
- Answer choicesTagsAnswer choicesTags