To Clean a Cylinder Valve Outlet of Foreign Material, What

question 45

Multiple Choice

To clean a cylinder valve outlet of foreign material, what should you do?

• A)Wipe the valve outlet with a light oil.
• B)Quickly open, then close, the valve.
• C)Blow into the valve outlet a few times.
• D)Wipe the valve outlet with an alcohol swab.

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Definitions:

CRTs

Cathode Ray Tubes, a technology used in traditional television and computer screens that projects images by directing a beam of electrons onto a phosphorescent screen.

MAC Address

A hardware identification number that uniquely identifies each device on a network, ensuring that data packets reach the correct destination.

Wireless Access Point

A device that receives and transmits data from multiple computers that have wireless NICs installed. The access point can be a standalone unit or can be integrated into an ADSL router.

Safety Googles

Protective eyewear that completely covers the eyes, eye sockets, and the surrounding area to protect from dust, water, or chemicals.