Checkpoint2:Arduino

Which of the following actions demonstrate the application of safety measures when working with hardware components?

• working in a dry environment without any protection

• disconnecting power before making circuit changes

• wearing anti-static wristbands

• using bare hands to handle components

• double-checking connections before powering up the circuit

Which of the following are true about arrays in C++?

• arrays can store multiple elements of the same data type

• Arrays in C++ can contain elements of different types.
• The size of an aray must be specified at compile time.

• Arrays in C++ can be resized dynamically at runtime.

When should you use a for loop instead of a while loop?

• Use a for loop when the condition is uncertain.
• Use a for loop when the number of iterations is predetermined.
• Use a for loop for infinite iterations.
• Use a for loop when you need to check a condition before each iteration.

How do you declare a constant in C++?

• define constant variableName = value;
• constant dataType variableName;
• dataType const variableName;
• const dataType variableName = value;

What is the main purpose of the Pulse Width Modulation (PWM) function in Arduino?

• To control the brightness of LEDs or the speed of motors.

• To increase the frequency of the signal.
• To store data in memory.
• To measure temperature variations.