NCCER ELECTRICAL LEVEL 1 MOD 4
ELECTRICAL THEORY COMPREHENSIVE
STUDY GUIDE 2026 FULL ANSWERS
GRADED A+
⩥ The voltage of a DC circuit to be measured. How should the meter be
connected to ensure proper polarity? Answer: The (-)with the (-) and the
(+) with the (+)
⩥ Electrical metallic tubing must be supported with what maximum
distance from each junction or outlet box? Answer: 3ft
⩥ What type of wire is standard for low-voltage milliamp signal system?
Answer: Single pair shielded
⩥ A 3 way switch, is what typeof switch/ Answer: SPDT
⩥ The number of complete AC cycles per second is called? Answer:
Frequency
⩥ All of the following are found on an elevation view of a motor control
center, EXCEPT Answer: LOCATION OF MOTOR
,⩥ What color wire is connected to the silver screw in an incandescent
fixture? Answer: White
⩥ Receptacles are rated according to the Answer: Voltage and amperage
capacity
⩥ The relationship of a transformer primary winding to the secondary
winding is expressed in? Answer: Turns Ratio
⩥ What is the NEC requirement for labeling disconnects? Answer: All
disconnects devices for circuits, feeder, and equipment must be clearly
and permanently mark
⩥ Cable markings show all of the following, EXCEPT Answer:
AMPACITY
⩥ The drawing scale is most likely to be found in which of the following
drawing location? Answer: The drawing title block
⩥ What item is used to make a 90 degree bend when pulling wire in
cable tray? Answer: Cable roller
⩥ The first step in making an exothermic (cadweld) connections is?
Answer: To prepare the cable, mold, and welding material
, ⩥ In a sine wave, the number of times per second an identical pattern
itself is known as? Answer: Frequency of a waveform
⩥ What is the voltage ratio for dual-voltage motors? Answer: 2 to 1
⩥ The value indicated on a meter for an AC circuit are defined as root-
mean- square, what is another term for this? Answer: Effective Value
⩥ What does frame size provide information about? Answer: Proper
bolt-up
⩥ All parts of metal cable tray must be bonded together and? Answer:
Grounded
⩥ Which of the following describes the grounding of metal parts that do
not carry current in a distribution system? Answer: Equipment
grounding
⩥ Which of the following statements is true about cadweld molds is
true? Answer: Cadweld molds are sized to fit the cable that is being
welded
ELECTRICAL THEORY COMPREHENSIVE
STUDY GUIDE 2026 FULL ANSWERS
GRADED A+
⩥ The voltage of a DC circuit to be measured. How should the meter be
connected to ensure proper polarity? Answer: The (-)with the (-) and the
(+) with the (+)
⩥ Electrical metallic tubing must be supported with what maximum
distance from each junction or outlet box? Answer: 3ft
⩥ What type of wire is standard for low-voltage milliamp signal system?
Answer: Single pair shielded
⩥ A 3 way switch, is what typeof switch/ Answer: SPDT
⩥ The number of complete AC cycles per second is called? Answer:
Frequency
⩥ All of the following are found on an elevation view of a motor control
center, EXCEPT Answer: LOCATION OF MOTOR
,⩥ What color wire is connected to the silver screw in an incandescent
fixture? Answer: White
⩥ Receptacles are rated according to the Answer: Voltage and amperage
capacity
⩥ The relationship of a transformer primary winding to the secondary
winding is expressed in? Answer: Turns Ratio
⩥ What is the NEC requirement for labeling disconnects? Answer: All
disconnects devices for circuits, feeder, and equipment must be clearly
and permanently mark
⩥ Cable markings show all of the following, EXCEPT Answer:
AMPACITY
⩥ The drawing scale is most likely to be found in which of the following
drawing location? Answer: The drawing title block
⩥ What item is used to make a 90 degree bend when pulling wire in
cable tray? Answer: Cable roller
⩥ The first step in making an exothermic (cadweld) connections is?
Answer: To prepare the cable, mold, and welding material
, ⩥ In a sine wave, the number of times per second an identical pattern
itself is known as? Answer: Frequency of a waveform
⩥ What is the voltage ratio for dual-voltage motors? Answer: 2 to 1
⩥ The value indicated on a meter for an AC circuit are defined as root-
mean- square, what is another term for this? Answer: Effective Value
⩥ What does frame size provide information about? Answer: Proper
bolt-up
⩥ All parts of metal cable tray must be bonded together and? Answer:
Grounded
⩥ Which of the following describes the grounding of metal parts that do
not carry current in a distribution system? Answer: Equipment
grounding
⩥ Which of the following statements is true about cadweld molds is
true? Answer: Cadweld molds are sized to fit the cable that is being
welded
