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The VT-ME exam has 105 questions and runs 5 hours.
These 10 free VT-ME questions are organized by exam domain, so you can see how each part of the Vermont Master Electrician License Exam blueprint is tested. Reveal the answer and explanation under each question.
An existing bathroom has a worn two-slot receptacle supplied by a two-wire circuit with no equipment grounding conductor or other grounding means at the box. The wiring is otherwise suitable for continued use. For a one-for-one receptacle replacement, which statement correctly describes the grounding requirement?
Correct answer: C - A GFCI receptacle may replace it if marked 'No Equipment Ground'; it does not create an equipment ground.
Lights on opposite legs of a 120/240 V single-phase feeder brighten and dim in opposite directions when a 120 V load switches on. Recorded measurements at the load end are L1-L2 = 240 V, L1-neutral = 79 V, and L2-neutral = 161 V. Each ungrounded conductor still measures approximately 120 V to the equipment grounding conductor. These findings most strongly indicate:
Correct answer: A - An open or high-resistance connection in the feeder neutral.
A 15 hp, 460 V, three-phase squirrel-cage motor has a nameplate current of 18 A; its full-load current in NEC Table 430.250 is 21 A. Separate overload protection is provided. Before any special increase for starting difficulties, what is the largest standard-rating inverse-time circuit breaker permitted for the motor branch circuit's short-circuit and ground-fault protection?
Correct answer: C - 60 A
During acceptance testing of a resistor-supervised, conventional two-wire Class B smoke-detector zone, opening one field conductor immediately outside the control panel disables all detectors on that zone, yet the panel continues to show normal. A direct test confirms that the zone input does indicate trouble when its terminals see an open circuit. The evidence points to which installation defect?
Correct answer: A - The end-of-line resistor is connected across the panel terminals instead of at the field circuit's end.
A hazardous-location assessment finds that a motor room beside a sealed grain conveyor has no ignitible dust cloud during normal operation. Combustible grain dust could enter the room in ignitible concentrations only following an abnormal rupture of the conveyor housing. No gas or vapor hazard is present. Under the NEC class-and-division system, the described room is:
Correct answer: D - Class II, Division 2.
A new detached workshop receives a four-wire feeder: two ungrounded conductors, a neutral, and an equipment grounding conductor. At the workshop's building disconnect, the neutral bar is bonded to the cabinet. The equipment grounding bar is also bonded to the cabinet and connected to the workshop's grounding electrode system. Which connection must be corrected?
Correct answer: B - Remove the neutral-to-cabinet bond while retaining the equipment-grounding and electrode connections.
For a dwelling that qualifies for the optional calculation in NEC 220.82, the general-and-appliance load group totals 46,000 VA before demand factors. The dwelling also has one centrally controlled 18,000 VA electric-resistance heating unit, with no heat pump, and a 7,000 VA air-conditioning load. An interlock prevents heating and cooling from operating together. No other heating or cooling loads apply. What total calculated service load results?
Correct answer: B - 36,100 VA
The owner of a new dwelling requests a kitchen island with no receptacle serving its countertop. The plan also shows no provision for adding such a receptacle later. Which review comment correctly applies the 2023 NEC to this choice?
Correct answer: C - An installed receptacle may be omitted, but provision for its future addition is required.
Before a conductor pull, the foreman notices that the wire is marked THHN only. The planned route is underground PVC conduit with solvent-welded joints and sealed ends; no standing water is visible. How should the conductor specification be resolved?
Correct answer: D - Specify conductors identified for wet locations, such as THWN-2.
A 6 AWG copper THHN conductor runs in a dry, 80-foot raceway containing nine current-carrying conductors. Ambient temperature is 34°C, and both terminations are rated 75°C. The relevant table values are 65 A at 75°C and 75 A at 90°C. Ambient correction factors are 0.94 for the 75°C column and 0.96 for the 90°C column; the nine-conductor adjustment factor is 70%. After applying the appropriate insulation and termination limits, what ampacity is available?
Correct answer: B - 50.4 A
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