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,NYC DCAS ELECTRICIAN EXAM
Full-Length Practice Test (80 Questions)
Time allowed (simulated): 3 hours
Format: Multiple choice, 4 options each
Passing score: 70% (56 correct)
, SECTION 1: General Electrical Theory (Questions 1–10)
1. What is the total resistance of three 12Ω resistors connected in parallel?
A) 4Ω
B) 12Ω
C) 36Ω
D) 3Ω
2. A 240V heater draws 10A. What is its power?
A) 24W
B) 240W
C) 2400W
D) 4800W
3. The RMS voltage of a 170V peak sine wave is approximately:
A) 120V
B) 170V
C) 240V
D) 100V
4. What type of current reverses direction periodically?
A) DC
B) AC
C) Pulsating DC
D) Rectified AC
5. A transformer with a 10:1 turns ratio has 120V primary. Secondary voltage is:
A) 12V
B) 1200V
C) 120V
D) 1.2V
6. What device stores energy in an electrostatic field?
A) Inductor
B) Capacitor