NFPA 99: Pre-Class WorkSheet

The reserve header in a cryogenic liquid container system shall have sufficient gas cylinder connections for one average day’s supply, but not fewer than ____ connections.

• 2

• 1

• 3

• 4

Which of the following piping materials shall be permitted for field installed medical surgical vacuum distribution piping systems?

• Stainless Steel Pipe

• Plastic Pipe

• Galvanized Pipe

• None of the above

Flex hose and connectors, both metallic and non-metallic, shall be no longer than necessary and shall have a minimum burst pressure of ____________.

• 800 psi

• 300 psi

• 500 psi

• 1,000 psi

The master alarm system shall activate when the pressure in the main supply lines increase or decrease by _________ percent.

• 50%

• 20%

• 10%

• 40%

What alarm shall the instrument air activate to indicate when or just before the backup compressor (if provided) is in operation?

• Local

• Master

• Area

• all of the above

Piping for category 3 positive-pressure medical gases shall be cleaned for oxygen service, delivered plugged or capped and shall be hard-drawn, seamless copper ASTM _______.

• B 280

• B 88

• B 819

• any of the above

The pressure in the main line of each medical gas system, the operation and condition of the source of supply and the reserve source (if any) shall be monitored at the _____________ alarm.

• master

• local

• area

• all of the above

The factory installed tubing on station outlets/inlets shall extend no further than ______ from the body of the terminal.

• 12”

• 10”

• 8”

• 6”

A ________ device is used for connecting the outlets of one or more gas cylinders to the central piping systems.

• Manifold

• Connection

• Manufactured assembly

• Mask

Natural ventilation shall consist of two non-closable louvered openings, each having an aggregate free opening area of at least ___________.

• 60 sq. in

• 62 sq. in.

• 72 sq. in

• 70 sq. in