AC Distribution
DC Distribution
Wiring & Cabling
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100

What is the primary function of a substation?

  • A) Generate power
  • B) Step up/down voltage
  • C) Store electricity
  • D) Convert AC to DC

B) Step up/down voltage

100

What does DC stand for?

Direct Current

100
  1. When should bus bars be used instead of cables?
  • A) Long-distance transmission
  • B) Compact installations
  • C) Outdoor environments
  • D) When flexibility is needed
  • B) Compact installations
100
  1. What is the primary purpose of an automation panel?
  • A) Store power
  • B) Central hub for power distribution and control
  • C) Generate electricity
  • D) Reduce voltage
  • B) Central hub for power distribution and control
100
  1. What tool is usually used to check voltage, current, and continuity?
  • A) Oscilloscope
  • B) Thermal Camera
  • C) Multimeter
  • D) SCADA System
  • C) Multimeter
200

Which of the following is NOT a common power generation method?

  • A) Hydro
  • B) Solar
  • C) Nuclear
  • D) Compressed Air

D) Compressed Air

200

What is a major disadvantage of DC power distribution?

  • A) Higher efficiency
  • B) Complex voltage conversion
  • C) No need for transformers
  • D) Generates more heat
  • B) Complex voltage conversion
200
  1. Which of the following is a live (hot) wire color in the United States (NEC Standard)?
  • A) White
  • B) Green
  • C) Black
  • D) Purple

Black

200
  1. Which of the following is NOT a key component of an automation panel?
  • A) Variable Frequency Drive
  • B) Circuit Protection Devices
  • C) Microwave Transformer
  • D) Communication Modules
  • C) Microwave Transformer
200
  1. Which safety measure ensures power is completely off before maintenance?
  • A) Lockout/Tagout (LOTO)
  • B) Circuit Breaker Reset
  • C) Grounding
  • D) Emergency Stop
  • A) Lockout/Tagout (LOTO)
300

What voltage level is typically used for transmission lines?

  • A) 12V
  • B) 110V
  • C) 110kV and above
  • D) 33V
  • C) 110kV and above
300

Why is DC power better for renewable energy sources?

  • A) It is cheaper
  • B) It avoids phase synchronization issues
  • C) It does not require transformers
  • D) It works only for wind turbines
  • B) It avoids phase synchronization issues
300

What should be done before pulling wire?

  • A) Secure all conduit, boxes, and panels
  • B) Label wires afterward
  • C) Ignore EMI effects
  • D) Skip following the color codes
  • A) Secure all conduit, boxes, and panels
300
  1. Which device processes input signals and controls outputs in an automation panel?
  • A) PLC
  • B) HMI
  • C) Transformer
  • D) Busbar
  • A) PLC
300

What is the difference between a surge arrestor and a surge protector?

Arrestor handles high voltage and a protector can only handle lower voltage.

400

What device protects a power system from overcurrent and faults?

B) Circuit Breaker

400

Which of the following is an advantage of DC power distribution?

  • A) Eliminates AC-DC conversion losses
  • B) Easier voltage conversion
  • C) Lower initial cost
  • D) More established infrastructure
  • A) Eliminates AC-DC conversion losses
400

What happens when too many current-carrying wires run in a single conduit?

They derate themselves 

400

Why are thermal cameras used in troubleshooting panels?

B) To detect overheating components

400
  1. Which of the following is an industrial communication protocol?
  • A) RS-485
  • B) HDMI
  • C) USB-C
  • D) VGA
  • A) RS-485
500

Which device is used to manage, protect, and isolate electrical equipment?

 A) Switchgear

500

Where is DC power commonly used in automation? (Give two examples)


Robots, Sensors, ... etc.

500

Max amount of bends in a conduit run without a pull box? (In degrees)

360

500

What does SCADA mean

Supervisory Control and Data Acquisition 

500

How often is the National Electric Code updated?

Every 3 years

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