Electronics Test

What does the red wire on a conventional servo represent? 

• Control

• Power

• Signal

• Ground

What does the symbol Ω stand for?

• Amps

• Millivolts

• Ohms

• Pulse Width Modulation

#4 on the image represents:

• Digital Pins

• Analog Pins

• Power and Ground Pins

• Pulse Width Modulation

#9 on the image represents:

• Digital Pins

• Analog Pins

• Power and Ground Pins

• Pulse Width Modulation

Using the table, what is the binary equivalent of the number “23”?

• 10111

• 10100

• 10101

• 10010

Which of the following electrical faults would describe an open circuit? 

• Current is flowing through an unintended and short pathway

• Both ends of a component are connected to the same row of a breadboard 

• The load bypasses, and starts to rapidly discharge 

• The path has been interrupted and current is without flow 

What do each of the following Boolean Operators mean? 

(== , >=, <, !=) 

• is not equal, greater than or equal to, less than, is equal 

• equal, greater than equal, less than, very equal 

• is equal, greater than or equal, less than, is not equal 

• is equal, less than or equal, greater than, is not equal 

Which of the following would describe a Phototransistor Light Sensor?

• Can act as a sensor or actuator

• Has no polarity  

• Made of a nickel chromium alloy  

• Is considered the opposite of the LED 

(TRUE/FALSE) Arduino uses a void setup() function in code to repeatedly run a command.

• True

• Fales

Which of the following is false about servo motors?

• Special electronics interpret a pulse signal and deliver power to the motor

• Gears reduce RPM and increase torque of DC motor

• The visible moving part of a servo is called the “horn”

• The red servo wire is responsible for grounding