Nyc Electrician (Dcas) Civil Service | Complete Exam 2026/2027 | Questions And 100% Verified Answers | Pass Guarantee

NYC DCAS Electrician




NYC ELECTRICIAN (DCAS) CIVIL SERVICE | COMPLETE
EXAM 2026/2027 | QUESTIONS AND 100% VERIFIED
ANSWERS | PASS GUARANTEE




1. According to Ohm's Law, what is the formula for calculating voltage?
A. V = I + R
B. V = R / I
C. V = I / R
D. V = I × R
Correct Answer: D
2. A circuit has a resistance of 10 ohms and a current of 5 amps. What
is the voltage?
A. 2 volts
B. 50 volts
C. 500 volts
D. 15 volts
Correct Answer: B
3. What unit is used to measure electrical resistance?
A. Ampere
B. Watt
C. Volt
D. Ohm
Correct Answer: D
4. What is the formula for electrical power?
A. P = V × I
B. P = V - I
C. P = V / I


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D. P = I / V
Correct Answer: A
5. A 120-volt circuit draws 2 amps. What is the power consumed?
A. 240 watts
B. 118 watts
C. 60 watts
D. 122 watts
Correct Answer: A
6. In a series circuit, how does total resistance relate to individual
resistances?
A. Total resistance is the sum of all resistances
B. Total resistance equals the average of all resistances
C. Total resistance is less than the smallest resistance
D. Total resistance is the product of all resistances
Correct Answer: A
7. In a parallel circuit, what happens to total resistance as more
resistors are added?
A. Total resistance becomes infinite
B. Total resistance increases
C. Total resistance stays the same
D. Total resistance decreases
Correct Answer: D
8. What is the term for the opposition to current flow in an AC circuit
that includes resistance, inductance, and capacitance?
A. Conductance
B. Admittance
C. Reactance
D. Impedance
Correct Answer: D
9. What does the term 'frequency' refer to in an AC circuit?
A. The resistance of the conductor
B. The total current flowing


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C. The peak voltage of the waveform
D. The number of complete cycles per second
Correct Answer: D
10. Standard household electrical frequency in the United States is:
A. 100 Hz
B. 120 Hz
C. 60 Hz
D. 50 Hz
Correct Answer: C
11. What is the term for the rate at which electrical energy is used or
converted?
A. Current
B. Voltage
C. Resistance
D. Power
Correct Answer: D
12. Which of the following best describes voltage?
A. Electrical potential difference between two points
B. Opposition to current flow
C. The amount of energy stored
D. The rate of flow of electrons
Correct Answer: A
13. What is the unit of electrical power?
A. Watt
B. Ohm
C. Ampere
D. Volt
Correct Answer: A
14. In a purely resistive AC circuit, voltage and current are:
A. Unrelated to each other
B. 90 degrees out of phase
C. In phase with each other


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D. 180 degrees out of phase
Correct Answer: C
15. What device is used to measure current in a circuit?
A. Ammeter
B. Wattmeter
C. Ohmmeter
D. Voltmeter
Correct Answer: A
16. What is the primary difference between AC and DC current?
A. There is no difference
B. AC periodically reverses direction, DC flows in one direction only
C. AC flows in one direction, DC reverses direction
D. AC has no voltage, DC has voltage
Correct Answer: B
17. What is the total resistance of two 10-ohm resistors connected in
parallel?
A. 5 ohms
B. 20 ohms
C. 2.5 ohms
D. 10 ohms
Correct Answer: A
18. What is the total resistance of two 10-ohm resistors connected in
series?
A. 10 ohms
B. 5 ohms
C. 20 ohms
D. 100 ohms
Correct Answer: C
19. Which law states that the current through a conductor is directly
proportional to voltage and inversely proportional to resistance?
A. Ohm's Law
B. Faraday's Law


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