Metallic surface-type cabinets for electrical equipment in damp or wet locations shall be mounted so there is at least ___ airspace between the cabinet and the wall or other supporting surface. Select one: a. 1/4 in. b. 3/8 in. c. 1/2 in. d. 1/8 in. Correct Answer – A
The installation of a fire alarm system requires a plenum cable to be run above the lay-in ceilings. Which of the following cable types is acceptable? I. CMR II. CMP III. FPLR IV. FPLP Select one: a. III or IV only b. I, II, or III only c. II or IV only d. I
A very long branch circuit has been installed underground in Schedule 40 PVC. The circuit extends from a 120/208-volt, 3-phase, 4-wire panelboard to the load. The branch circuit conductors are connected to a 20-A circuit breaker in the panel. Due to voltage drop considerations, 1 AWG circuit conductor has been
Signs or outline lighting system equipment shall be at least ___ feet above areas accessible to vehicles unless protected from physical damage. Select one: a. 10 b. 22 c. 18 d. 14 e. 12 The Answer is d. 14
In an area used for patient care, the grounding terminals of all receptacles and all non-current-carrying conductive surfaces of fixed electric equipment likely to become energized that are subject to personal contact, operating at over ___, shall be connected to an insulated copper equipment grounding conductor. Select one: 10 volts
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