How many wires does a typical BLDC motor have?

• 2

• 3

• 4

• 6

What type of current does a BLDC motor use?

• AC

• Pulsed DC

• DC with commutation

• Static current

ESCs convert battery DC power into:

• Thermal energy

• Rotating torque

• Pulsed signals for motor phases

• AC voltage for GPS

In a quadcopter, how many ESCs are usually required?

• 1

• 2

• 3

• 4

Which component helps ESCs to receive control signals?

• Battery

• Receiver

• Camera

• Motor

The signal sent to an ESC to control speed is usually:

• Digital signal

• Analog voltage

• PWM (Pulse Width Modulation)

• AC signal

BLDC motors operate through:

• Spark ignition

• Magnetic fields

• Fuel combustion

• Heat energy

Which of the following is NOT a part of ESC operation?

• Signal processing

• Voltage regulation

• GPS decoding

• Current control

BLDC motors require what to operate efficiently?

• ESC

• Heater

• GPS

• Diode

ESCs must be calibrated to:

• Play music

• Save battery

• Respond correctly to throttle input

• Increase noise