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37 True/False questions

  1. Temperature /pressure relief valve's are typically rated at?150 psi
    210 *F

          

  2. Wire size for 200 ampsCopper #2/0
    Aluminum #4/0

          

  3. Typical slope for waste plumbing?1/4" per ft

          

  4. Wire size for 125 ampsCopper #2
    Aluminum #1/0

          

  5. How much overlap is required on a asphalt shingle valley?3/8"

          

  6. Maximum Amperage for #14 gauge wireCopper 110 amps
    Aluminum 80 amps

          

  7. Maximum Amperage for #12 gauge wireCopper 20 amps
    Aluminum 15 amps

          

  8. It is okay to have a non-grounded receptacle within 6 inches of water?3"

          

  9. What two locations is a check valve typically installed to prevent sewer backup into the basement?Floor drains &
    Main drain line

          

  10. Wire size for 60 ampsCopper #10
    Aluminum #8

          

  11. Maximum Amperage for #6 gauge wireCopper 60 amps
    Aluminum 35-40 amps

          

  12. How is the electrical system in most older homes grounded?...

          

  13. Can 3 tab asphalt shingles be installed on a 2/12" pitch roof?Yes, but only if there is two layers of felt paper.

          

  14. Wire size for 30 ampsCopper #6
    Aluminum #4

          

  15. Wire size for 100 ampsCopper #4
    Aluminum #2

          

  16. Plumbing vents must terminate at least ___???10 ft from a window &
    6" above the roof

          

  17. Maximum Amperage for #1 gauge wireCopper 40 amps
    Aluminum 30 amps

          

  18. What are the three requirements for subpanelsCopper #6
    Aluminum #4

          

  19. How far apart should wood shakes/shingles be placed?1/3

          

  20. No more than ___ of a wood shingle should be exposed?1/3

          

  21. What determines the amount of electricity (amperage) a wire can carry?Size (diameter)

          

  22. Maximum Amperage for #4 gauge wireCopper 40 amps
    Aluminum 30 amps

          

  23. Maximum number of disconnects to shut off on the main panel is?Copper 60 amps
    Aluminum 35-40 amps

          

  24. What is the minimum diameter and extension height above the roof line of event pipe to prevent frost /snow closure?6 ft

          

  25. Copper-to-steel connections undergo a ____?Electrolytic reaction

          

  26. Two 3 ft appliance connectors can be connected to make a 6 ft connection?6 ft

          

  27. Clay tile roof should have how much overlap?A vent that also serves as a drain.

          

  28. In addition to a di-electric coupler, copper and galvanized steel can be joined by a brass converter fitting?True

          

  29. Maximum Amperage for #3 gauge wireCopper 80 amps
    Aluminum 60 amps

          

  30. What is the maximum length of a flexible gas appliance connector?...

          

  31. Maximum Amperage for #2 gauge wireCopper 40 amps
    Aluminum 30 amps

          

  32. Maximum Amperage for #10 gauge wireCopper 30 amps
    Aluminum 25 amps

          

  33. Maximum Amperage for #8 gauge wireCopper 90 amps
    Aluminum 70 amps

          

  34. What is a wet vent?A vent that also serves as a drain.

          

  35. Wire size for 150 ampsCopper #1/0
    Aluminum #2/0

          

  36. A built up roof with a 12" lap joint is hoy many ply?3"

          

  37. What is the biggest improvement between knob-and-tube wiring and modern cable?The use of grounding