ICC CMI Quiz 5

1) What is the largest soft annealed copper tubing that is allowed for use in field-assembled refrigerant systems? (1,107.4, T1,107.4 Footnote a)

1 inch 2 inches 1.5 inch 1-3/8 inch

2) Exposed refrigerant piping installed in open spaces that afford passage shall be not less than how high above the finished floor? (1,109.2.1)

87 inches 90 inches 80 inches 72 inches

3) Refrigerant piping shall not be installed in which of the following locations? (??)

Conference room Elevator Non-fire resistant corridor Kitchen

4) Refrigerating piping fittings that will reach a surface temperature below the dew point of the surrounding air where condensation can cause a safety hazard shall be? (1,109.7)

Mounted outdoor Be located in an attic or crawl space Protected by insulation or other approved manner to prevent damage Have a drain line

5) Refrigeration systems with more than 6.6 pounds of refrigerant shall require stop valves at which of the following locations? (1,109.8.1)

Suction inlet only Discharge outlet only Outlet of each liquid receiver only All the above

6) Stop valves installed on copper tubing shall require separate supports if the piping is what size? (1,109.8.3)

Always require separate supports Above 1/2 inch Above 2 inches At or above 1 inch

7) Pressure testing refrigeration piping shall never use what gas? (??)

Water Nitrogen Carbon Dioxide Oxygen

8) Steel hydronic piping shall conform to which standard? (T1,202.4)

ASTM A53 ASTM F 1 2 8 1 ASTM F 2 8 5 5 ASTM D 1 5 2 7

9) Cut pipe used for hydronic piping shall be? (1,203.2)

At least 20 gauge Reamed and chamfered Lubricated Joined with welding

10) Pipe joint compound applied to hydronic piping shall only be applied to? (1,203.3.5)

Female threads only Both female and male threads Male threads only Within 1/4 inch of the ends

11) The insulation on hydronic piping installed in buildings shall have a maximum flame spread index of? (1,204.1)

50 100 175 25

12) Openings for hydronic pipe penetrations through concrete elements shall be? (1,206.4)

Sealed Fire proofed Packed with non-combustible materials Sleeved

13) Hydronic piping shall be installed to prevent all of the following, except? (1,206.9)

Melting Settlement Contraction Expansion

14) The flash point of transfer fluid in a hydronic piping system shall be not less than? (1,207.1)

100 degrees F 50 degrees F 0 degrees F -45 degrees F

15) Hydronic piping systems shall be tested hydrostatically at one and one-half times the maximum system design pressure, but not less than 100 PSI. The duration of each test shall be not less than what time duration? (1,208.1)

5 minutes 15 minutes 30 minutes 60 minutes

16) Embedded hydronic piping is permitted to be all of the following materials except? (1,209.1)

Steel pipe Aluminum pipe Copper tubing Polybutylene plastic pipe

17) Embeded hydronic piping is required to be rated at 100 PSI at what temperature? (1,209.1)

150 degrees F 180 degrees F 200 degrees F 220 degrees F

18) Piping to be embedded in concrete shall be pressure tested prior to pouring concrete and the operating pressure shall be maintained? (1,209.2)

During concrete pouring At 200 PSI At 150 PSI At 120 PSI

19) Embedded steel hydronic piping joints shall be? (1,209.3.1)

Threaded Welded Compression connected Flare connected

20) Hydronic piping in a ground-source heat pump piping system having an external surface temperature exceeding 250 degrees F shall have a minimum clearance of what distance from combustible materials? (1,210.8.3)

2 inches 3 inches 4 inches 1 inch

21) Nonmetallic piping for fuel oil piping and storage shall only be used? (1,302.4)

Outdoors, underground At all locations Underground under a crawl space In an attic

22) Joints between diAerent piping materials used for fuel oil piping shall be made with approved? (1,303.1.1)

Dielectric fittings Aluminum connectors Plastic materials Hardened steel inserts

23) The minimum size of a fuel oil supply line shall be? (1,305.1)

1/4 inch 3/8 inch 1/2 inch 3/4 inch

24) Copper tubing used for fuel oil systems shall have a minimum wall thickness of? (1,305.1)

0.013 inch 0.019 inch 0.032 inch

25) A fill pipe for a fuel oil system shall terminate outside of a building at a point not less than how far from any building opening at the same or lower level? (1,305.6)

1 foot 2 feet 3 feet 4 feet

26) Potable water supplies to solar systems shall be protected against? (1,401.2)

Contamination Heating Cooling Electric current

27) Solar thermal system components containing pressurized fluid shall be protected against pressures and temperatures exceeding design limitations by using? (1,402.3)

Pressure relief valves Temperature valves Electric valves Dampers

28) Solar thermal equipment exposed to vehicular traffic shall be installed not less than how far above the finished floor? (1,402.6)

6 feet 7 feet 8 feet 10 feet

29) Roofing mounted solar collectors that also serve as a roof covering shall conform to the requirements for roofing as specified in the IBC unless what solar collector covers are used? (1,402.8.1.3 Exception)

Glass Plastic Non-transmissible Electrically neutral

30) Ducts used in solar heating and cooling systems shall be constructed an installed with an exposed surface temperature limited to? (1,402.8.2)

120 degrees F 150 degrees F 200 degrees F 250 degrees F

31) Liquid single-phase solar energy systems shall be equipped with? (1,402.8.7)

Electrically isolated locations Expansion tanks Pressure relief valves every 20 feet Insulators

32) A flammable liquid shall be used as a heat transfer for solar thermal systems only when? (1,403.5)

Never For systems under 10,000 BTU If separated from a structure by 10 feet If used as a secondary heat transfer loop

33) Factor built solar thermal collectors shall bear a label showing all of the following except? (1,404.1)

Manufacturer’s name Serial number Heat transfer capacity Certification number

2021 ICC Commercial Mechanical Inspector Quiz 5

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