Worksheet 5
Name: 				
Date: 				

1. A shutoff valve shall be placed at the immediate connection of each ________ system to the distribution piping system. What is the name given to the valve?
A. Source
B. Isolation
C. Main
D. Supply
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2. A shutoff valve shall be provided in the _______ supply line when the source valve is not accessible from within the building being served. What is the name given to this valve?
A. Service
B. Supply
C. Main
D. Zone
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3. All valves except valves zone valve box assemblies shall be secured by any of the following means ________________.
A. Located in secure areas
B. Located above ceiling, but remaining accessible and not obstructed
C. Any of the above
D. Locked or latched in their operating positions
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4. Immediately outside each vital life-support, critical care and anesthetizing location of moderate sedation, deep sedation, or general anesthesia there shall be located a (n) _____________ in each medical gas, or vacuum line or both.
A. Fire extinguisher
B. Relief valve
C. Zone valve
D. Area alarm
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5. In-line check valves shall not have threaded connections but shall have____________________.
A. Brazed extensions
B. All of the above
C. Threaded purge port
D. In-line serviceability
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6. New or replacement shutoff valves for medical gas pressure piping systems shall be permitted to be any type as long as they meet the following: ___________________ .
A. They have a minimum CV factor
B. Quarter turn to off
C. Constructed of material suitable
D. All of the above
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7. Service valve shall be placed in the branch piping prior to any ______________ on that branch.
A. In line valve
B. Zone valve
C. Source valve
D. Valves for future
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8. Shutoff valves for positive pressure gases shall ______________.
A. Provided with copper tube extensions for brazing
B. Permit in-line serviceability
C. cleaned for oxygen service by the manufacturer
D. All of the above
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9. The main line valve shall be located on which side of the source valve, when the main line valve enters the building.
A. Downstream of the source valve
B. Facility side of the source valve
C. Upstream of the source valve
D. Main line valve upstream of the service valve
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10. There shall be a zone valve immediately outside of anesthetizing location of__________________?
A. Moderate sedation
B. Deep sedation
C. General anesthesia
D. All or any of the above
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11. What is the name given to the shutoff valve installed on all lateral branch piping from a main or riser?
A. Zone
B. Main
C. Riser
D. Service
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12. What valve is permitted to be installed to isolate or shut off piping for servicing of individual rooms or areas?
A. In line valve
B. Riser valve
C. Service valve
D. Future valve
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13. What valves shall be readily operable from a standing position in the corridor on the same floor they serve?
A. Main
B. Service
C. Riser
D. Zone
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14. With the approval of the authority having jurisdiction, in what areas shall the shutoff valves be permitted to be secured to prevent inappropriate access?
A. Physchiatric or pediatric
B. Maternity
C. Critical care
D. Anesthetizing
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15. Bulk cryogenic liquid system require 3 ft clearance around three sides of the following:________.
A. Storage container
B. Vaporizer
C. Manifolds for maintenance
D. All of the above
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16. The minimum clearance around the EOSC for a temporary source is ______ ft ? 
A. 3 Feet
B. 2 Feet
C. 5 Feet
D. 6 Feet
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17. The ______ valve shall be the line separating the applicability between NFPA 55 and this code.
A. Source
B. Main
C. In line
D. None of the above
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18. Cryogenic fluid central supply systems shall be installed by personnel qualified in accordance with CGA M-1, Standard for Medical Gas Supply Systems at Health Care Facilities, or ASSE _____ , Professional Qualifications Standard for Bulk Medical Gas Systems Installers.
A. 6015
B. 6010
C. 6030
D. 6040
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19. Cryogenic fluid central supply systems shall be installed in compliance with the ______ Current Good Manufacturing Practices per 21 CFR 210 and 21 CFR 211.
A. FDA
B. CGA
C. USP
D. none of the above
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20. The following components of the cryogenic fluid central supply system shall be accessible and visible to delivery personnel during filling operations:
1. (1) Fill connection
2. (2) Top and bottom fill valves
3. (3) Hose purge valve
4. (4) Vent valve
5. (5) Full trycock valve
6. (6)
__________
7. (7) Tank pressure indicator
A. Liquid level Indicator
B. Flexible hose
C. Dual Valves
D. Venting port
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21. Cryogenic Fluid central supply systems Instrumentation tubing shall be constructed of annealed copper tubing or seamless _____ tubing.
A. Stainless Steel
B. Poly
C. Hard copper
D. ASTM B819
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22. Valves of quick-open or quarter-turn designs, such as ball or plug valves, shall not be permitted in the portion of an oxygen piping system operating above ____ psi [3000 kPa]
A. 435
B. 350
C. 200
D. 500
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23. 

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Worksheet 5 answers
1. A
2. C
3. C
4. C
5. B
6. D
7. B
8. D
9. B
10. D
11. D
12. A
13. D
14. A
15. D
16. A
17. A
18. A
19. A
20. A
21. A
22. A
23. G, B, H, H, K, K, F, J, I, D, H, B, C, E, L, A