CFESA ELECTRICAL ACTUAL EXAM NEWEST 2025 ACTUAL
EXAM COMPLETE 200 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||
BRAND NEW VERSION!!
Question 1
What does the prefix "Kilo" mean?
A) 1/1,000,000
B) 1/1000
C) 1000
D) 1,000,000
E) 100
Correct Answer: C) 1000
Rationale: Kilo (k) is a metric prefix denoting 1000 units.
Question 2
If you know the wattage and voltage of a circuit, how do you determine the
current?
A) Multiply the wattage by the voltage.
B) Divide the voltage by the wattage.
C) Divide the wattage by the voltage.
D) Add the wattage and voltage.
E) Subtract the voltage from the wattage.
Correct Answer: C) Divide the wattage by the voltage
Rationale: Using the power formula P = V * I (Power = Voltage *
Current), current (I) can be found by dividing power (P) by voltage
(V): I = P / V.
Question 3
If you know the voltage and current in a circuit, how do you determine the
wattage?
A) Divide voltage by current.
B) Divide current by voltage.
C) Multiply voltage times current.
D) Add voltage and current.
,E) Subtract current from voltage.
Correct Answer: C) Multiply voltage times current
Rationale: The power formula P = V * I directly states that wattage
(power) is the product of voltage and current.
Question 4
If a circuit is supplied with 100 volts and the total resistance of the circuit is
200 ohms, how much current will the circuit draw?
A) 2 amps
B) 1 amp
C) 0.5 amps
D) 20000 amps
E) 50 amps
Correct Answer: C) 0.5 amps
Rationale: Using Ohm's Law (I = V / R), Current (I) = 100V / 200 Ohms
= 0.5 Amps.
Question 5
If a piece of equipment is supplied 208 volts and an amp meter clamped to
the hot line reads 20 amps, what is the wattage of the load (assuming single
phase resistive load)?
A) 10.4 Watts
B) 4160 Watts
C) 2080 Watts
D) 416 Watts
E) 20 Watts
Correct Answer: B) 4160 Watts
Rationale: Wattage (Power) = Voltage * Current = 208V * 20A = 4160
Watts.
Question 6
How much voltage is present in one hot line (relative to itself)?
A) 120V
,B) 208V
C) 240V
D) Zero
E) It depends on the circuit.
Correct Answer: D) Zero
Rationale: Voltage is a potential difference between two points. A
single hot line, measured relative to itself, has no potential
difference, hence zero voltage.
Question 7
What happens to current in a parallel circuit?
A) It stays the same everywhere.
B) It adds up across resistances.
C) It divides across resistances.
D) It is inversely proportional to resistance.
E) It is always zero.
Correct Answer: C) It divides across resistances
Rationale: In a parallel circuit, the total current divides among the
different branches, with more current flowing through paths of
lower resistance.
Question 8
What happens to voltage across the loads in a parallel circuit?
A) It divides across resistances.
B) It stays the same everywhere.
C) It is inversely proportional to current.
D) It increases with more loads.
E) It decreases with more loads.
Correct Answer: B) It stays the same
Rationale: In a parallel circuit, all components connected in parallel
have the same voltage drop across them, which is equal to the
supply voltage.
, Question 9
What happens to the voltage across the loads in a series circuit?
A) It stays the same everywhere.
B) It is equal to the current.
C) It divides across the resistances.
D) It increases with more loads.
E) It is inversely proportional to the current.
Correct Answer: C) It divides across the resistances
Rationale: In a series circuit, the total voltage supplied by the source
is divided among the loads, with the voltage drop across each load
being proportional to its resistance.
Question 10
What happens to the current in a series circuit?
A) It divides across resistances.
B) It stays the same everywhere.
C) It increases with more loads.
D) It decreases with more loads.
E) It is inversely proportional to resistance.
Correct Answer: B) It stays the same everywhere
Rationale: In a series circuit, there is only one path for current to
flow, so the current is the same at every point in the circuit.
Question 11
In a parallel circuit, the total resistance of the circuit will always be less than
what resistance?
A) The largest resistance.
B) The total sum of all resistances.
C) The average resistance.
D) The smallest resistance.
E) The resistance of the power supply.
Correct Answer: D) the smallest resistance
EXAM COMPLETE 200 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||
BRAND NEW VERSION!!
Question 1
What does the prefix "Kilo" mean?
A) 1/1,000,000
B) 1/1000
C) 1000
D) 1,000,000
E) 100
Correct Answer: C) 1000
Rationale: Kilo (k) is a metric prefix denoting 1000 units.
Question 2
If you know the wattage and voltage of a circuit, how do you determine the
current?
A) Multiply the wattage by the voltage.
B) Divide the voltage by the wattage.
C) Divide the wattage by the voltage.
D) Add the wattage and voltage.
E) Subtract the voltage from the wattage.
Correct Answer: C) Divide the wattage by the voltage
Rationale: Using the power formula P = V * I (Power = Voltage *
Current), current (I) can be found by dividing power (P) by voltage
(V): I = P / V.
Question 3
If you know the voltage and current in a circuit, how do you determine the
wattage?
A) Divide voltage by current.
B) Divide current by voltage.
C) Multiply voltage times current.
D) Add voltage and current.
,E) Subtract current from voltage.
Correct Answer: C) Multiply voltage times current
Rationale: The power formula P = V * I directly states that wattage
(power) is the product of voltage and current.
Question 4
If a circuit is supplied with 100 volts and the total resistance of the circuit is
200 ohms, how much current will the circuit draw?
A) 2 amps
B) 1 amp
C) 0.5 amps
D) 20000 amps
E) 50 amps
Correct Answer: C) 0.5 amps
Rationale: Using Ohm's Law (I = V / R), Current (I) = 100V / 200 Ohms
= 0.5 Amps.
Question 5
If a piece of equipment is supplied 208 volts and an amp meter clamped to
the hot line reads 20 amps, what is the wattage of the load (assuming single
phase resistive load)?
A) 10.4 Watts
B) 4160 Watts
C) 2080 Watts
D) 416 Watts
E) 20 Watts
Correct Answer: B) 4160 Watts
Rationale: Wattage (Power) = Voltage * Current = 208V * 20A = 4160
Watts.
Question 6
How much voltage is present in one hot line (relative to itself)?
A) 120V
,B) 208V
C) 240V
D) Zero
E) It depends on the circuit.
Correct Answer: D) Zero
Rationale: Voltage is a potential difference between two points. A
single hot line, measured relative to itself, has no potential
difference, hence zero voltage.
Question 7
What happens to current in a parallel circuit?
A) It stays the same everywhere.
B) It adds up across resistances.
C) It divides across resistances.
D) It is inversely proportional to resistance.
E) It is always zero.
Correct Answer: C) It divides across resistances
Rationale: In a parallel circuit, the total current divides among the
different branches, with more current flowing through paths of
lower resistance.
Question 8
What happens to voltage across the loads in a parallel circuit?
A) It divides across resistances.
B) It stays the same everywhere.
C) It is inversely proportional to current.
D) It increases with more loads.
E) It decreases with more loads.
Correct Answer: B) It stays the same
Rationale: In a parallel circuit, all components connected in parallel
have the same voltage drop across them, which is equal to the
supply voltage.
, Question 9
What happens to the voltage across the loads in a series circuit?
A) It stays the same everywhere.
B) It is equal to the current.
C) It divides across the resistances.
D) It increases with more loads.
E) It is inversely proportional to the current.
Correct Answer: C) It divides across the resistances
Rationale: In a series circuit, the total voltage supplied by the source
is divided among the loads, with the voltage drop across each load
being proportional to its resistance.
Question 10
What happens to the current in a series circuit?
A) It divides across resistances.
B) It stays the same everywhere.
C) It increases with more loads.
D) It decreases with more loads.
E) It is inversely proportional to resistance.
Correct Answer: B) It stays the same everywhere
Rationale: In a series circuit, there is only one path for current to
flow, so the current is the same at every point in the circuit.
Question 11
In a parallel circuit, the total resistance of the circuit will always be less than
what resistance?
A) The largest resistance.
B) The total sum of all resistances.
C) The average resistance.
D) The smallest resistance.
E) The resistance of the power supply.
Correct Answer: D) the smallest resistance
