Worksheet 2
Name: 				
Date: 				

1. A variant on the cryogenic liquid container manifold shall be permitted to have three headers. Such a variant shall have a minimum of _____ connections required for each of the primary and secondary headers
A. An Average Days Supply
B. 4
C. 2
D. 3
Code Section                             #

2. All pressure relief valves shall be made of brass, bronze or _________.
A. Carbon Steel
B. Stainless Steel
C. Copper
D. Cast Iron
Code Section                             #

3. Cylinders in use and in storage shall be prevented from reaching temperatures in excess of _________.
A. 160 F
B. 190 F
C. 125 F
D. 100 F
Code Section                             #

4. Final line pressure regulators, when used for bulk cryogenic liquid systems shall be of a ______ design.
A. Straight Through
B. Parellel
C. Balanced
D. None Of The Above
Code Section                             #

5. In central supply systems using gas or liquid cylinders, each header shall have a _______ to prevent debris from entering the manifold controls.
A. Check Valve
B. Relief Valve
C. Filter
D. Monitor
Code Section                             #

6. Indoor locations for oxygen, nitrous oxide and mixtures of these gases shall not communicate with _______ locations.
A. Engines
B. Kitchens
C. Anesthetizing Locations
D. All Of The Above
Code Section                             #

7. Louvered openings for natural ventilation shall have a minimum free area of _____.
A. 70 Sq. Inches
B. 60 Sq. Inches
C. 72 Sq. Inches
D. 62 Sq. Inches
Code Section                             #

8. Manifolds for gas cylinders without reserve shall consist of ________ equal headers; each with an average day’s supply, but not fewer than ________ connections.
A. One - One
B. Four - Four
C. Three - Three
D. Two - Two
Code Section                             #

9. Manifolds in this category shall have a _______ signal that visibly indicates the operating status of the equipment and shall activate an indicator at all ________ alarm panels to indicate when or just before changeover from one header to the other.
A. Master - Area
B. Master - Local
C. Local - Master
D. Area - Master
Code Section                             #

10. Medical air reconstituted from oxygen USP and nitrogen NF (synthetic air) produced using proportioning systems shall be required to meet the following.
A. Medical air shall be 19.5% to 23.5% oxygen
B. Shall be cleared for marketing and approved by the FDA
C. The mixture shall be analyzed continuously and recorded
D. All of the above
Code Section                              #

11. Nitrous oxide and carbon dioxide using cylinders or portable containers shall be prevented from reaching temperatures lower than___________.
A. 125 F
B. 20 F
C. -20 F
D. 130 F
Code Section                              #

12. The gas produced by evaporation from the secondary header in a cryogenic liquid cylinder system shall enter the supply system ________ of the final line regulator.
A. Upstream Of The Filter
B. Not Required
C. Upstream
D. Downstream
Code Section                              #

13. The minimum clearance around the EOSC for a temporary source is ______ ft ?
A. 2 Feet
B. 6 Feet
C. 3 Feet
D. 5 Feet
Code Section                              #

14. The reserve header in a cryogenic liquid cylinder system shall have sufficient gas cylinder connections for an average day’s supply, but not fewer than ____connections.
A. 1
B. 4
C. 3
D. 2
Code Section                              #

15. When multiple buildings are served from a single cryogenic liquid oxygen source, where is it required to place the emergency oxygen supply connection?
A. Each building served
B. Building closest to the source
C. Main building only
D. Largest building served
Code Section                              #

16. Which of the following systems shall not be permitted to be located in an outdoor enclosure? 
A. Medical Air Sources
B. Manifolds for gas cylinders with or without reserve
C. Manifolds for cryogenic Liquid Cyclinders
D. Bulk Cyrogenic Liquid Systems
Code Section                              #

17.  

Code Section                               #

18. Category 1 systems shall be permitted to serve spaces identified as ?
A. Category 1
B. Category 2
C. Category 3
D. All of the above
Code Section                              #