Question 1

What is the color code for an air cylinder?

Accepted Answer

A)   Yellow
B)   White
C)   Gray
D)   Red A

Question 2

Because of the high pressure contained in a medical gas cylinder,a device is needed to contain the gas and to provide a point of attachment for equipment.What is this called?

Accepted Answer

A)   Outlet
B)   Stem
C)   Pin valve
D)   Cylinder valve D

Question 3

How should the contents of a cylinder be identified?

Accepted Answer

A)   Verify the color code of the cylinder
B)   Match the label to the color code
C)   By the size of the cylinder
D)   a and b D

Question 4

A device that reduces the pressure in the medical gas cylinder from 2200 psi to 50 psi is termed a ________________

Accepted Answer

A)   riser.
B)   flowmeter.
C)   reducing valve.
D)   station outlet.

Question 5

You attach a pressure reducing valve to a 'M' sized gas cylinder.When you open the cylinder valve you hear gas leaking from of near the valve-cylinder connection.What should you do?

Accepted Answer

The answer of You attach a pressure reducing valve to...

Question 6

How many cubic feet of oxygen are in an 'E' sized cylinder?

Accepted Answer

A)   244 cu. ft.
B)   22 cu. ft.
C)   28.3 cu. ft.
D)   2200 cu. ft.

Question 7

Hydrostatic testing is required for all cylinders every _____________

Accepted Answer

A)   year.
B)   5 to 10 years.
C)   10 to 15 years.
D)   15 to 20 years.

Question 8

Certain substances,when exposed to oxygen,may ignite with great force without the addition of heat to initiate the process.This phenomenon is termed __________________

Accepted Answer

A)   the tank factor.
B)   cracking a cylinder.
C)   spontaneous combustion.
D)   hydrostatic testing.

Question 9

What is a device called that provides a precise oxygen concentration between 21% and 100% by mixing air and oxygen?

Accepted Answer

A)   Riser
B)   Concentrator
C)   Blender
D)   Multi-stage regulator

Question 10

What device takes air from the atmosphere and separates the oxygen from the other gases in the air,then delivers the oxygen to the patient at as high as 90% concentration?

Accepted Answer

A)   Bourdon gauge
B)   Multi-stage regulator
C)   Liquid oxygen reservoir
D)   Oxygen concentrator

Question 11

You are going to transport a patient to the MRI department for a MRI scan.The patient is on a non-rebreathing mask at 15 LPM.The procedure will last approximately 60 minutes.What equipment should the practitioner gather for the transport?

Accepted Answer

The answer of You are going to transport a patient...

Question 12

Which organization recommends the standards for construction of medical gas piping systems?

Accepted Answer

A)   Compressed Gas Association (CG
A)  
B)   National Fire Protection Association (NFP
A)  
C)   Department of Transportation (DOT) 
D)   Bureau of Standards (BOS)

Question 13

A half-full 'E' cylinder will last how long running at 3 L/min?

Accepted Answer

A)   About 180 minutes
B)   About 30 minutes
C)   About 4 hours, 13 minutes
D)   About 1 hour, 43 minutes

Question 14

Cylinders manufactured for the transport of medical gases are constructed in accordance with regulations specifically established by the __________________

Accepted Answer

A)   Department of Transportation (DOT) .
B)   Compressed Gas Association (CG
A)  .
C)   National Fire Protection Association (NFP
A)  .
D)   American Standard Safety System (ASSS) .

Question 15

Because large medical gas cylinders (larger than 'E' sized)may contain a variety of gases besides oxygen,a safety system was designed by the CGA to prevent the interchange of cylinders containing dissimilar gases.What is the name of this system?

Accepted Answer

A)   Frangible Disk
B)   Diameter-indexed Safety System
C)   Pin Index Safety System
D)   American Standard Safety System

Question 16

If a cylinder valve is exposed to excessive temperature in a fire,which type of safety system is incorporated into the valve to release gas pressure?

Accepted Answer

A)   Fusible plug
B)   Frangible disk
C)   Diameter-indexed Safety System (DISS) 
D)   Pin Index Safety System (PISS)

Question 17

What is the purpose of 'cracking' a cylinder before use?

Accepted Answer

A)   This primes the system with oxygen so there is no air mixed in with the oxygen with the first part of the gas delivered to the patient.
B)   This removes any dust, or particulate matter, from the outlet of the cylinder valve.
C)   It causes the regulator to become pressurized precisely to 50 psi before gas is delivered to the patient.
D)   It pressurizes the cylinder to make sure it will not leak and compensate for the cylinder until the cylinder is hydrostatically tested.

Question 18

What happens to a cylinder if it fails hydrostatic testing?

Accepted Answer

A)   The vessel is filled with water to 5/3 of the service pressure.
B)   It is filled with another gas.
C)   It is destroyed.
D)   It is retested.

Question 19

The ____________ has developed a color code for the different gases and gas mixtures.

Accepted Answer

A)   U.S. Department of Transportation (DOT) 
B)   Compressed Gas Association (CG
A)  
C)   Pin Index Safety System (PISS) 
D)   National Fire Protection Association (NFP
A)

Question 20

A piping system is required to have a reserve or backup supply of oxygen.What is the minimum amount of time the reserve system must be able to meet a facility's oxygen needs?

Accepted Answer

A)   12 hours
B)   24 hours
C)   36 hours
D)   48 hours

Exam 12: Oxygen Supply Systems