NYC Electrician
2026 Exam Flashcards
2026_2027
Expert-Verified Questions and
Answers
(With A+ Grades Guarantee)
, What wire has the highest resistance? Chromium
Z- Impedance The total opposition to an AC circuit, combining all resitances
Z= square root of R^2 + (XL- XC)^2
True Power Total power of circuit in Watts
P(true)= P(App.) x PF
Oil is used in many large transformers to? To insulate the coils
Apparent Power Starting power
P(App) = E x I (Volt Amperes)
Power Factor P(True) / P(App) OR PF=R/Z
Xc= Capacitive Reactance Xc= 1/ (2)(π)(F)(C) OR 159,000/ (f x μfd)
Xl= inductive reactance Xl= (2)(π)(F)(L)
Circuit breakers used for switching shall be marked: SWD or HID
An insulated wire shall have its AWG marking every Two
_______ feet
The cold resistance is ________ than the hot resistance. Less than
Celsius to Fahrenheit F = 9/5C + 32
Wire Temp. Abbreviations No H = 60° C
1 H = 75°C
2 H= 90°
Voltage is _________ to the # of turns Proportional
To select the proper fuse, it is necessary to know the... voltage and amperage
2026 Exam Flashcards
2026_2027
Expert-Verified Questions and
Answers
(With A+ Grades Guarantee)
, What wire has the highest resistance? Chromium
Z- Impedance The total opposition to an AC circuit, combining all resitances
Z= square root of R^2 + (XL- XC)^2
True Power Total power of circuit in Watts
P(true)= P(App.) x PF
Oil is used in many large transformers to? To insulate the coils
Apparent Power Starting power
P(App) = E x I (Volt Amperes)
Power Factor P(True) / P(App) OR PF=R/Z
Xc= Capacitive Reactance Xc= 1/ (2)(π)(F)(C) OR 159,000/ (f x μfd)
Xl= inductive reactance Xl= (2)(π)(F)(L)
Circuit breakers used for switching shall be marked: SWD or HID
An insulated wire shall have its AWG marking every Two
_______ feet
The cold resistance is ________ than the hot resistance. Less than
Celsius to Fahrenheit F = 9/5C + 32
Wire Temp. Abbreviations No H = 60° C
1 H = 75°C
2 H= 90°
Voltage is _________ to the # of turns Proportional
To select the proper fuse, it is necessary to know the... voltage and amperage
