Arizona Contractor License CR-67 Exam Questions With Complete Solutions | Latest Update 2025 | Sure To Pass!!

Arizona Contractor License CR-67 Exam Questions With Complete Solutions | Latest Update 2025 | Sure To Pass!! 1. Underground Feeder (UF) Cables or Non-Metallic Wet Underground (NMWU) - ANSWER Most appropriate for damp areas. 2. THWN - ANSWER Flame retardant, Heat resistant, Moisture resistant, Gasoline resistant, and oil resistant. 3. 6 AWG - ANSWER An insulated grounded conductor which is __ AWG or below should be identified by a continuous white or gray outer finish. 4. Line Voltage - ANSWER The amount of voltage measured between any two line conductors of a balanced three-phase system. (Phase to Phase) 5. Phase Voltage - ANSWER Describes the voltage measured across any one component of a balanced three-phase system. 6. Ground Fault - ANSWER An unintentional mess up. (When a conductor is shorted to ground) 7. An effective Ground-Fault current path is a path intentionally constructed to facilitate the operation of the overcurrent protective devices currently in place. - ANSWER An effective Ground-Fault current path is? 8. False, GFCI= Ground Fault Current Interrupter - ANSWER GFCI is never sensitive to small "leaks" of current 9. False, bonding is a means of allowing electrical continuity between metallic objects. - ANSWER Grounding and bonding mean the same thing? 10. 2.0 m - ANSWER A typical workspace (for a working voltage under 600V) should have a minimum headroom of ___ m. 11. 2 - ANSWER Typically, there are ___ hot wires running from the utility company into the service panel. 12. No less than that the calculated load or for the type of installation - ANSWER A service disconnect needs to have a rating which is? 13. True - ANSWER Fast-blow fuses tend to open quick when the rated current is reached. 14. System grounding is required when you have a supply transformer of a 50V or lower system which itself is supplied from a source over 150V to the ground - ANSWER System grounding is required when you have a supply transformer of a SOV or lower system? 15. Anything 16 AWG or lower - ANSWER On a class 1 circuit it is ok to use smaller wire sizes than normal power circuits such as 16. 600 Volts - ANSWER Class 1 signaling ad remote control circuits are limited to? 17. Class 1 - ANSWER When a circuit controls equipment can introduce a direct life safety hazard, the circuit has to be Class ___. 18. True - ANSWER Class 2 circuit must be kept separate from lighting? 19. CL2P or CL3P - ANSWER Cables that are installed in ducts for environmental air should be of type? 20. CL2 or Cl3 - ANSWER Cables installed in building locations other than in plenums for environmental air may be ____ or ____. 21. Voltage drop = 2 x (the circuit length in ft) x (resistance per 1 ft) x (current) / 1000 VD= 2 x L X R X I -------------- 1000 - ANSWER Voltage drop can be calculated based on? 22. Class 2 circuits may not be derived from a large transformer by using fuses or breakers. - ANSWER Class 2 circuits 23. .008 mil - ANSWER The pulling tension in pounds for a copper wire should not exceed ____ mil times the circular mil area of a conductor. 24. Maximum current the fuse can handle. - ANSWER The breaking capacity specifies (interrupting rating) 25. Short circuit - ANSWER ______ occurs when there are two points in the circuit accidentally coming in contact. 26. True - ANSWER Circuits of 30A may be used to serve fixed lighting units with heavy-duty lamp holders in non-dwellings units. 27. True - ANSWER Circuits of 40A may be used to serve fixed lighting with heavy-duty lamp holders in fixed cooking appliances. 28. 1 wall switch - ANSWER Need to have at least ___ wall switch-controlled lighting outlet installed in every habitable room. 29. 30 Volts - ANSWER A lighting system that has an isolating power supply operating at no more than ___ volts peak under any load condition is considered as low voltage. 30. True - ANSWER For both power-limited and non-power-limited circuits, surge protective devices can be considered for protecting against electrical surges. 31. NEC article 285 - ANSWER When installing surge protective devices to protect the circuits, the requirements of NEC Article ____ needs to be followed. 32. Riser, Duct, and Plenum applications. - ANSWER FPL cables may be used for general purpose alarms without conduit. Exceptions include__ 33. FPLP cables - ANSWER ______ are power-limited electrical cables suitable to be installed in environmental air plenum spaces without conduit.