https://www.stuvia.com/user/performance
CFESA ELECTRICAL UPDATED!!! EXAM QUESTIONS WITH ANSWERS
AND RATIONALES
1. The unit of electrical current is the:
A) Volt
B) Ohm
C) Ampere
D) Watt
Answer: C
Rationale: Current is measured in amperes (amps).
2. The unit of electrical resistance is the:
A) Volt
B) Ohm
C) Ampere
D) Watt
Answer: B
Rationale: Resistance is measured in ohms (Ω).
3. The unit of electrical potential difference is the:
A) Volt
B) Ohm
C) Ampere
D) Watt
,https://www.stuvia.com/user/performance
Answer: A
Rationale: Voltage (potential difference) is measured in volts.
4. Ohm’s Law states that current is equal to:
A) Voltage × Resistance
B) Voltage ÷ Resistance
C) Resistance ÷ Voltage
D) Power × Voltage
Answer: B
Rationale: I = V / R.
5. If a circuit has 120 volts and a resistance of 30 ohms, the
current is:
A) 2 amps
B) 4 amps
C) 30 amps
D) 120 amps
Answer: B
Rationale: I = V/R = 120/30 = 4 A.
6. The unit of electrical power is the:
A) Volt-ampere
B) Watt
C) Joule
D) Ohm
,https://www.stuvia.com/user/performance
Answer: B
Rationale: Power is measured in watts.
7. Power in an electrical circuit is calculated by:
A) Voltage × Current
B) Voltage ÷ Current
C) Current ÷ Voltage
D) Resistance × Current
Answer: A
Rationale: P = V × I.
8. A circuit has 240 volts and 10 amps. The power is:
A) 2400 watts
B) 240 watts
C) 24 watts
D) 2.4 kW
Answer: A
Rationale: P = 240 × 10 = 2400 W.
9. In a DC circuit, the flow of electrons is:
A) Alternating direction
B) In one direction only
C) Random
D) Pulsating
Answer: B
Rationale: Direct current flows in one direction.
, https://www.stuvia.com/user/performance
10. In an AC circuit, the current flow:
A) Is constant
B) Reverses direction periodically
C) Only flows in one direction
D) Stops completely
Answer: B
Rationale: Alternating current changes direction at a set
frequency.
11. The standard frequency in North America is:
A) 50 Hz
B) 60 Hz
C) 100 Hz
D) 120 Hz
Answer: B
Rationale: North American AC power is 60 hertz.
12. The standard voltage for most commercial kitchen
equipment in the US is:
A) 120 V
B) 208 V or 240 V
C) 277 V
D) 480 V only
Answer: B
Rationale: Many commercial appliances use 208/240 V single or
three phase.
CFESA ELECTRICAL UPDATED!!! EXAM QUESTIONS WITH ANSWERS
AND RATIONALES
1. The unit of electrical current is the:
A) Volt
B) Ohm
C) Ampere
D) Watt
Answer: C
Rationale: Current is measured in amperes (amps).
2. The unit of electrical resistance is the:
A) Volt
B) Ohm
C) Ampere
D) Watt
Answer: B
Rationale: Resistance is measured in ohms (Ω).
3. The unit of electrical potential difference is the:
A) Volt
B) Ohm
C) Ampere
D) Watt
,https://www.stuvia.com/user/performance
Answer: A
Rationale: Voltage (potential difference) is measured in volts.
4. Ohm’s Law states that current is equal to:
A) Voltage × Resistance
B) Voltage ÷ Resistance
C) Resistance ÷ Voltage
D) Power × Voltage
Answer: B
Rationale: I = V / R.
5. If a circuit has 120 volts and a resistance of 30 ohms, the
current is:
A) 2 amps
B) 4 amps
C) 30 amps
D) 120 amps
Answer: B
Rationale: I = V/R = 120/30 = 4 A.
6. The unit of electrical power is the:
A) Volt-ampere
B) Watt
C) Joule
D) Ohm
,https://www.stuvia.com/user/performance
Answer: B
Rationale: Power is measured in watts.
7. Power in an electrical circuit is calculated by:
A) Voltage × Current
B) Voltage ÷ Current
C) Current ÷ Voltage
D) Resistance × Current
Answer: A
Rationale: P = V × I.
8. A circuit has 240 volts and 10 amps. The power is:
A) 2400 watts
B) 240 watts
C) 24 watts
D) 2.4 kW
Answer: A
Rationale: P = 240 × 10 = 2400 W.
9. In a DC circuit, the flow of electrons is:
A) Alternating direction
B) In one direction only
C) Random
D) Pulsating
Answer: B
Rationale: Direct current flows in one direction.
, https://www.stuvia.com/user/performance
10. In an AC circuit, the current flow:
A) Is constant
B) Reverses direction periodically
C) Only flows in one direction
D) Stops completely
Answer: B
Rationale: Alternating current changes direction at a set
frequency.
11. The standard frequency in North America is:
A) 50 Hz
B) 60 Hz
C) 100 Hz
D) 120 Hz
Answer: B
Rationale: North American AC power is 60 hertz.
12. The standard voltage for most commercial kitchen
equipment in the US is:
A) 120 V
B) 208 V or 240 V
C) 277 V
D) 480 V only
Answer: B
Rationale: Many commercial appliances use 208/240 V single or
three phase.
