Exam Questions And Correct Answers

Florida Certified Master Electrician Exam Questions And Correct Answers (Verified Answers) Plus Rationale2026 Q&A| Instant Download Pdf

• What is the minimum size copper equipment grounding conductor

required for a 200-amp feeder?

A. 6 AWG

B. 8 AWG

C. 4 AWG

D. 2 AWG

Rationale: NEC Table 250.122 specifies a 4 AWG copper grounding

conductor for 200-amp overcurrent protection.

• Underground service-lateral conductors that are not encased in

concrete must have a minimum cover of:

• 12 inches
• 18 inches
• 24 inches
• 30 inches

Rationale: NEC Table 300.5 requires 24″ cover for direct-buried service

conductors.

• The maximum number of 90° bends allowed in a single conduit run

between pull points is:

• 2
• 3

C. 4 1 / 3

• 5

Rationale: NEC 358.26 and similar articles limit total bends to 360°.

• What is the minimum ampacity required for service conductors

supplying a 120/240-V, 1-phase, 200-amp service?

A. 150 A

B. 160 A

C. 180 A

D. 200 A

Rationale: Service conductors must not be smaller than the service rating

(NEC 230.42).

• Type NM cable is NOT permitted in which location?
• Wood-framed walls
• Above suspended ceilings in dwellings
• Commercial garages
• Residential attics

Rationale: NEC 334 prohibits NM in commercial garages due to hazardous

conditions.

• What is the maximum voltage drop recommended for a branch circuit

feeder and branch combined?

• 2%
• 3%
• 5%
• 8%

Rationale: NEC FPN recommends 3% branch, 5% total.

• The grounded (neutral) conductor in a 120/240-V system must be

identified by which color?

• Red
• White
• Blue
• Orange

Rationale: NEC 200.6 requires neutrals to be white or gray. 2 / 3

8. Minimum working clearance in front of 480-V electrical panels is:

• 2 ft
• 2.5 ft
• 3 ft
• 3.5 ft

Rationale: NEC Table 110.26(A)(1) requires 3 ft for most 480-V

equipment.

• What is the maximum continuous load allowed on a 20-A branch

circuit?

A. 12 A

B. 14 A

C. 16 A

D. 20 A

Rationale: 80% rule for continuous loads (NEC 210.20).

• Which conductor material is NOT acceptable for grounding

electrodes?

• Copper
• Zinc-coated steel
• Aluminum
• Stainless steel

Rationale: NEC 250.62 prohibits aluminum for grounding electrodes due

to corrosion.

• Minimum burial depth for rigid metal conduit under a driveway?

A. 6″

B. 12″

C. 18″

D. 24″

Rationale: NEC Table 300.5 requires 24″ under driveways.

• Maximum rating for a single receptacle on a 20-amp circuit?
• / 3