NYC DCAS ELECTRICIAN EXAM COMPLETE PRACTICE QUESTION BANK (400 QUESTIONS) BASED ON NEC 2017/2020, NYC AMENDMENTS, AND GENERAL ELECTRICAL TRADE KNOWLEDGE

NYC DCAS ELECTRICIAN EXAM COMPLETE PRACTICE QUESTION BANK
(400 QUESTIONS) BASED ON NEC 2017/2020, NYC AMENDMENTS,
AND GENERAL ELECTRICAL TRADE KNOWLEDGE




1. What is the minimum size copper equipment grounding conductor
required for a 400A feeder protected by a 400A overcurrent device?
Correct Answer: #3 AWG

2. According to NYC amendments, what is the minimum trade size for
rigid metal conduit (RMC) installed exposed in a parking garage where
subject to vehicle impact?
Correct Answer: 1¼ inch

3. In a dwelling unit, how many 20-ampere small-appliance branch
circuits are required for kitchen receptacles?
Correct Answer: Two

4. What is the maximum recommended voltage drop for a branch
circuit plus feeder combined?
Correct Answer: 5%

,5. What is the minimum bending radius for 2-inch RMC when field
bending?
Correct Answer: 12 inches

6. A sign outlet for a fixed outdoor sign must be installed within what
maximum distance from the sign's location?
Correct Answer: 20 feet

7. How many 12 AWG THHN conductors are permitted in ¾-inch EMT?
Correct Answer: 16

8. What color is required for the grounded conductor (neutral) in a
120/240V single-phase system?
Correct Answer: White or Gray

9. A 120V branch circuit supplies a continuous load of 15A. What is the
minimum conductor ampacity and overcurrent protection required?
Correct Answer: 18.75A conductor, 20A breaker

10. When installing PVC conduit in a cold storage warehouse where
temperature changes exceed 25°F, what is required?
Correct Answer: Expansion fittings

11. A 30 HP, 460V, 3-phase motor with a full-load current of 40A
requires a minimum rated disconnect switch of at least what size?
Correct Answer: 115A

,12. What is the minimum clearance for service drop conductors above a
residential flat roof not accessible to pedestrians?
Correct Answer: 8 feet

13. According to Ohm's Law, what is the current through a 24-ohm
resistor connected to a 120-volt source?
Correct Answer: 5A

14. What is the correct formula for calculating voltage?
Correct Answer: V = I × R

15. A 240V single-phase circuit supplies a 4800W electric water heater.
What is the current draw?
Correct Answer: 20A

16. What is the unit of electrical resistance?
Correct Answer: Ohm

17. What is the frequency of standard AC power in New York City?
Correct Answer: 60 Hz

18. According to NEC Table 110.26(A)(1), what is the minimum working
space depth in front of electrical equipment operating at 480V phase-
to-phase with exposed live parts on one side and grounded parts on the
other side (Condition 1)?
Correct Answer: 3 feet

, 19. What is the minimum size THHN copper conductor permitted for a
15-ampere branch circuit?
Correct Answer: #14 AWG

20. What is the maximum overcurrent protection for 14 AWG copper
conductors?
Correct Answer: 15A

21. What is the maximum overcurrent protection for 12 AWG copper
conductors?
Correct Answer: 20A

22. What is the maximum overcurrent protection for 10 AWG copper
conductors?
Correct Answer: 30A

23. For a continuous load, branch circuit conductors must be sized at
what percentage of the load?
Correct Answer: 125%

24. What Article of the NEC covers branch circuits?
Correct Answer: Article 210

25. What Article of the NEC covers feeders?
Correct Answer: Article 215