Florida Certified Electrical Contractor Examination Newest 2026/2027
Questions and Correct Detailed Answers with Rationales Already
Graded A+
1. What is the basic unit of electrical current?
A. Volt
B. Ohm
C. Ampere
D. Watt
Correct Answer: C. Ampere
Rationale: The ampere (A) is the unit of electrical current. Current represents the
rate at which electrical charge flows through a circuit.
2. Which formula represents Ohm's Law?
A. E = I × R
,B. P = E × R
C. R = E × I
D. I = E × R
Correct Answer: A. E = I × R
Rationale: Ohm's Law establishes the relationship between voltage (E), current (I),
and resistance (R). The formula can also be rearranged to calculate current or
resistance.
3. A 120-volt circuit has a resistance of 20 ohms. What is the current?
A. 2 A
B. 4 A
C. 6 A
D. 12 A
Correct Answer: C. 6 A
Rationale: Use I = E ÷ R. Therefore, 120 ÷ 20 = 6 amperes.
,4. What is the unit of electrical resistance?
A. Ampere
B. Ohm
C. Volt
D. Watt
Correct Answer: B. Ohm
Rationale: Resistance is measured in ohms (Ω). Resistance opposes the flow of
electrical current.
5. What is the unit of electrical power?
A. Ohm
B. Volt
C. Watt
D. Ampere
, Correct Answer: C. Watt
Rationale: Electrical power is measured in watts. In a simple DC circuit, power can
be calculated using P = E × I.
6. A 240-volt load draws 15 amperes. What is its electrical power?
A. 1,600 W
B. 2,400 W
C. 3,600 W
D. 4,800 W
Correct Answer: C. 3,600 W
Rationale: P = E × I. Therefore, 240 × 15 = 3,600 watts.
7. If voltage remains constant and resistance increases, what happens to current?
Questions and Correct Detailed Answers with Rationales Already
Graded A+
1. What is the basic unit of electrical current?
A. Volt
B. Ohm
C. Ampere
D. Watt
Correct Answer: C. Ampere
Rationale: The ampere (A) is the unit of electrical current. Current represents the
rate at which electrical charge flows through a circuit.
2. Which formula represents Ohm's Law?
A. E = I × R
,B. P = E × R
C. R = E × I
D. I = E × R
Correct Answer: A. E = I × R
Rationale: Ohm's Law establishes the relationship between voltage (E), current (I),
and resistance (R). The formula can also be rearranged to calculate current or
resistance.
3. A 120-volt circuit has a resistance of 20 ohms. What is the current?
A. 2 A
B. 4 A
C. 6 A
D. 12 A
Correct Answer: C. 6 A
Rationale: Use I = E ÷ R. Therefore, 120 ÷ 20 = 6 amperes.
,4. What is the unit of electrical resistance?
A. Ampere
B. Ohm
C. Volt
D. Watt
Correct Answer: B. Ohm
Rationale: Resistance is measured in ohms (Ω). Resistance opposes the flow of
electrical current.
5. What is the unit of electrical power?
A. Ohm
B. Volt
C. Watt
D. Ampere
, Correct Answer: C. Watt
Rationale: Electrical power is measured in watts. In a simple DC circuit, power can
be calculated using P = E × I.
6. A 240-volt load draws 15 amperes. What is its electrical power?
A. 1,600 W
B. 2,400 W
C. 3,600 W
D. 4,800 W
Correct Answer: C. 3,600 W
Rationale: P = E × I. Therefore, 240 × 15 = 3,600 watts.
7. If voltage remains constant and resistance increases, what happens to current?
