2) Non-isometric lines are easily drawn to scale.

3) Electrical plans are of no use when installing a plumbing system.

4) Section drawings show the section of land upon which the structure is to be built.

5) Plumbing and Mechanical plans are sometimes combined.

6) Detail drawings take precedent over floor plans.

7) For positive pressure medical gas systems, piping shall be hard drawn, seamless copper tube, specification

8) Med-Gas joints shall be brazed within _ hours after the surfaces are cleaned for brazing.

9) Level 1 medical air compressors shall be sized to serve the peak calculated demand and in no case shall there be fewer than ___compressors.

10) In a Med Gas System, what valve shall be placed such that a wall intervenes between the valve and outlets/inlets that it controls?

11) The installation of medical gas and vacuum systems shall be made by experienced, qualified and competent installer. The installers shall meet the requirements of

12) Medical air sources shall be used only for _____________ and calibration of medical respiratory

devices.

13) Shutoff valves for positive pressure gases shall

14) To assure that all ambient air has been removed from the pipeline prior to brazing,

a/an ____________ shall be used to verify the effectiveness of the purge.

15) Backflow Prevention Devices or Assemblies installed in a Potable Water Supply System shall be tested

16) A certified backflow tester may ______ change the design, material, or operational characteristics of an assembly during maintenance or repair.

17) A pressure vacuum breaker must be installed ___ above the highest downstream outlet.

18) The term “air gap” in water distribution is

19) The minimum air gap separation is

20) An RP type back flow assembly should be installed a minimum of __ above a cement slab floor.