# (12 If a conductor is covered, it is: A) Encased with an insulation recognized by the Code 8) Encased with

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(12 If a conductor is covered, it is: A) Encased with an insulation recognized by the Code 8) Encased with an outer covering not recognized as electrical insulation C) Effectively isolated from ground faults D) Covered with a material of a composition and thickness recognized by UL (13 Open motors with commutators shall material, but this: A) Is only required for over 600 volts B) Does not prohibit these motors from a Class I location C) Shall not prohibit these motors on wooden floors D) None of these be located so sparks cannot reach adjacent combustible (14 The branch-circui t conductors supplying a motor that draws 40 amperes must have an ampacity not less than D) 70 amperes A) 40 amperes C) 60 amperes B) 50 amperes (15 If n o other information is given, a continuous-duty motor that draws 100 amperes must be protected by an overload device rated at not more than: A) 125 amperes C) 140 amperes D) 115 amperes B) 150 amperes (16 The branch- circuit overcurrent device may serve as the disconnecting means for motor-driven appliances rated not over: A) 1/2 horsepower B) 1 horsepower C) 3/4 horsepower D) 1/8 horsepower (17 A power factor correction capacitor connected on the load side of the overload device of a motor reduces the line current by 20%, if the full-load current of the motor is 100 amperes, the setting of an overload device in the circuit is based on a current of A) 100 amperes D) 150 amperes C) 80 amperes B) 125 amperes (18 Conductors supplying two or more motors must have an ampacity equal to the sum of the full-load current rating of all the motors plus what percent of the highest rated motor in the group: A) 25% C) 75% D) 100% B) 50% (19 What may the locked-rotor current be assumed to be for small motor-compressors not having the locked-rotor current marked on the nameplate? A) 2 times the rated load current C) 6 times the rated load current D) 8 times the rated load current B) 4 times the rated load current (20 What is the maximum overcurrent protective device allowed on a 480-volt branch circuit with several small motors connected - all of which are under 1 horsepower and the maximum load of each motor is 5 amperes A) 10 amperes D) 30 amperes B) 15 amperes C) 20 amperes

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