Cylinder Safety Review (WDST4)

The learner will review safety precautions for the storage, handling, and use of cylinders.

Author - Jessica Lloyd


Question 1:

This is a safe way to handle a cylinder.

Question Image

Answer 1:

True

Answer 2:

False


Correct Answer:

False

Feedback:

While it's safe to keep a cylinder on a welding cart, the cylinder must be secured to prevent it from falling.


Question 2:

This device is used to:

Question Image

Answer 1:

Indicate that the cylinder is empty

Answer 2:

Protect the cylinder valve from impact

Answer 3:

Cover the regulator gauges


Correct Answer:

Protect the cylinder valve from impact


Question 3:

A cylinder should always be stored:

Answer 1:

In the upright position

Answer 2:

Stacked on its side

Answer 3:

With the cap on

Answer 4:

In the upright position and with the cap on


Correct Answer:

In the upright position and with the cap on


Question 4:

What potential hazard is caused by tipping over an uncapped cylinder?

Answer 1:

It may become part of the electrical circuit

Answer 2:

The valve may break off

Answer 3:

The cylinder could explode

Answer 4:

Dirt may get in the valve


Correct Answer:

The valve may break off

Feedback:

While it's possible for a cylinder to rupture and explode due to circumstances such as electrical arc strikes and intense heat, it's more likely for the valve to break off when a cylinder tips over. In this case, the real hazard is that the cylinder will rapidly expel highly pressurized gas and shoot around like a rocket. 


Question 5:

What is this person doing?

Question Image

Answer 1:

Opening the cylinder to begin welding

Answer 2:

Checking the cylinder's pressure

Answer 3:

"Cracking" the cylinder valve

Answer 4:

Attaching a regulator


Correct Answer:

"Cracking" the cylinder valve

Feedback:

Cracking the cylinder valve blows out dust and debris that could become lodged in the regulator. This is a good practice to follow every time you use a new cylinder.  


Question 6:

What are the possible consequences of leaving your cylinder valve open when its not in use?

Answer 1:

If it's leaking, you will continue to lose gas

Answer 2:

The regulator could become damaged

Answer 3:

The cylinder may tip over

Answer 4:

You could lose gas and the regulator could be damaged

Answer 5:

You could lose gas and the cylinder may tip over


Correct Answer:

You could lose gas and the regulator could be damaged


Question 7:

What's the purpose of the soapy water test?

Answer 1:

To secure the cylinder

Answer 2:

To clean out dirt from the valve

Answer 3:

To make sure the regular isn't damaged

Answer 4:

To check for leaks


Correct Answer:

To check for leaks

Feedback:

Soapy water is used because of its tendency to bubble up when gas is leaking.


Question 8:

Which of the following precautions should be taken when using a cylinder?

Answer 1:

Keep the cylinder chained up

Answer 2:

Avoid striking an arc against the cylinder

Answer 3:

Chain up the cylinder and avoid striking an arc against the cylinder

Answer 4:

Use oil to make sure there aren't any leaks


Correct Answer:

Chain up the cylinder and avoid striking an arc against the cylinder


Question 9:

The most dangerous place to stand when opening a cylinder is:

Answer 1:

To the side of the regulator gauges

Answer 2:

Behind the regulator gauges

Answer 3:

In front of the regulator gauges


Correct Answer:

In front of the regulator gauges


Question 10:

Damage to a regulator or flow meter occurs due to:

Answer 1:

Dropping or other impacts

Answer 2:

Being left pressurized when not in use

Answer 3:

Being used with normal working pressure

Answer 4:

Dropping or other impacts and being used with normal working pressure

Answer 5:

Dropping or other impacts and being left pressurized when not in use


Correct Answer:

Dropping or other impacts and being left pressurized when not in use


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