Unit 3b (Oxy-acetylene Torches)

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  • 1/10 Questions
    Typical setup is: - Tank/Cylinders - Regulators - Hoses - Torch - Fire Extinguisher - ProProfs

    Typical setup is: - Tank/Cylinders - Regulators - Hoses - Torch - Fire Extinguisher

    • True
    • False
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About This Quiz

You must complete Unit 3B (Oxy-Acetylene Torches) with a score of 90% or higher before continuing to Unit 3C (Toolbox Meetings).

Unit 3b (Oxy-acetylene Torches) - Quiz

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  • 2. 
    Acetylene is a _______ gas. - ProProfs

    Acetylene is a _______ gas.

    • Stable

    • Unstable

    Correct Answer
    A. Unstable
    Explanation
    Acetylene gas is very unstable.

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  • 3. 
    In regards to storage, cylinders that are full must be stored upright where they are protected from damage.  However, empty cylinders may be stored horizontally and on the ground. - ProProfs

    In regards to storage, cylinders that are full must be stored upright where they are protected from damage.  However, empty cylinders may be stored horizontally and on the ground.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    No cylinder is to be stored lying on the ground no matter if it is full or empty. Cylinders can still contain pressure when empty. Also, remember that the company who swaps out your empty cylinder for a full one often refills the empty cylinder for future use. A cylinder could be damaged if left on its side and cause an injury later.

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  • 4. 
    When opening an Acetylene bottle, open the valve slowly, no more than _____ turns. - ProProfs

    When opening an Acetylene bottle, open the valve slowly, no more than _____ turns.

    • 1

    • 1 1/3

    • 1 1/2

    • 2

    Correct Answer
    A. 1 1/2
    Explanation
    When opening an Acetylene bottle, it is important to open the valve slowly to prevent any sudden release of gas. Opening the valve slowly allows for better control and reduces the risk of accidents. Opening the valve no more than 1 1/2 turns ensures a gradual release of gas and minimizes the chances of a sudden surge in pressure.

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  • 5. 
    In regards to regulators, you should do all of the following EXCEPT: - ProProfs

    In regards to regulators, you should do all of the following EXCEPT:

    • Use for line checks.

    • Use to control output pressure.

    • Keep petrolium products away.

    • Avoid cleaning.

    Correct Answer
    A. Avoid cleaning.
    Explanation
    The given question is asking about the actions that should not be done in regards to regulators. The correct answer is "Avoid cleaning." This means that cleaning the regulators is not recommended. Cleaning regulators can potentially damage the equipment or interfere with its functionality. It is important to follow proper maintenance procedures and consult the manufacturer's instructions for any cleaning or maintenance requirements.

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  • 6. 
    Oxygen is a _______ gas. - ProProfs

    Oxygen is a _______ gas.

    • Combustible

    • Non-Combustible

    • Flammable

    • Explosive

    Correct Answer
    A. Non-Combustible
    Explanation
    Oxygen is a non-combustible gas because it does not burn or support combustion. While oxygen is necessary for combustion to occur, it is not combustible itself. Combustible gases are those that can be ignited and burn, but oxygen does not possess this property.

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  • 7. 
    A flashback arrestor is sometimes required. - ProProfs

    A flashback arrestor is sometimes required.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Flashback arrestors are always required at regulator to prevent fire from traveling through to hose and into the cylinder.

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  • 8. 
    When shutting down, the following should be done in what order? 1. Close cylinders. 2. Close acetylene valve on torch, followed by the oxygen. 3. Relieve line pressure valves. 4. Re-open torch valves and allow for line to bleed off. 5. Cap cylinders, wrap up hoses, and store properly. - ProProfs

    When shutting down, the following should be done in what order? 1. Close cylinders. 2. Close acetylene valve on torch, followed by the oxygen. 3. Relieve line pressure valves. 4. Re-open torch valves and allow for line to bleed off. 5. Cap cylinders, wrap up hoses, and store properly.

    • 1, 2, 3, 4, 5

    • 2, 1, 4, 3, 5

    • 1, 2, 4, 3, 5

    • 2, 1, 3, 4, 5

    Correct Answer
    A. 2, 1, 4, 3, 5
    Explanation
    When shutting down, it is important to do so in the correct order (2, 1, 4, 3, 5).

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  • 9. 
    To which parts of the torch are the arrows pointing? - ProProfs

    To which parts of the torch are the arrows pointing?

    • Cutting attachment, oxygen blast trigger, preheat oxygen.

    • Torch handle, cutting tip, preheat oxygen.

    • Cutting tip, flow arrestors, preheat oxygen.

    • Flow arrestors, control valves, cutting attachment.

    Correct Answer
    A. Cutting tip, flow arrestors, preheat oxygen.
    Explanation
    The arrows in the image are pointing to the cutting tip, flow arrestors, and preheat oxygen parts of the torch.

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  • 10. 

    When using a cutting torch, which of the following should be worn?

    • Earplugs

    • Leather Welder Gloves

    • Shaded Glasses

    • Snug-fitting Clothes

    Correct Answer
    A. Shaded Glasses
    Explanation
    Torching goggles WC-5 are to be used instead of shaded safety glasses or sunglasses.

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Quiz Review Timeline (Updated): Jan 12, 2024 +

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  • Current Version
  • Jan 12, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 13, 2008
    Quiz Created by
    Kiewitsafe
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