VEX Robotics STEM Advanced Practice Exam

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• When using an If Statement and the condition is true, what happens?
• True or False: A simple statement may affect the order that statements are run, allowing the program to skip or repeat commands as needed.
• In relation to PID, what does the ‘I’ in PID stand for?
• What programming condition is crucial for establishing line tracking behavior?
• True or False: The Line Tracking Sensor is considered a digital sensor since it has only two conditions, light and dark.
• What is pseudocode?
• What aptly describes a point turn in robotics?
• Why does the robot stop when it cannot detect an object?
• True or False: A parameter is a special variable that allows you to pass data into a function.
• Which of the following best describes the functionality of the Ultrasonic Sensor?
• Is it true that the Else branch must contain a condition within its square brackets?
• What does the returned value of the Line Tracking Sensor indicate when detecting light surfaces?
• After changing batteries in the VEXnet joystick, what action is recommended?
• What input options are available on the VEXnet remote control?
• How many markers, or waypoints, can be placed using the Measurement Toolkit?
• What does a shaft encoder measure?
• Which of these is not a requirement for a parameter name?
• What is one of the limitations of the Measurement Toolkit in terms of waypoint usage?
• What does it mean to "initialize" a variable?
• For a left point turn with the robot configuration, which joystick movements are required?
• To make the robot move in a circle, what should be activated?
• Which type of statement is required to end a function call in many programming languages?
• In programming, what is indicated by an asterisk following a multiline comment?
• True or False: To calculate the threshold for a single Line Tracking Sensor, you add the high and low sensor values and divide by 2.
• What should you ensure about the firmware before using the VEXnet joystick for the first time?
• True or False: If you give a custom name to your motors, it must be a single word including 'Motor' with a capital M.
• True or False: Variables should be created at the beginning of task main.
• True or False: The getMotorEncoder command can be compared to a good driver who slows to a stop.
• Must all programs end with a 'Stop' command? True or False?
• Which dropdown menu allows you to launch the sample programs window?
• What is the purpose of a While Loop when using the VEXnet remote control?
• True or False: The PID speed control algorithm helps the robot manage flaws in the motor and drivetrain.
• What is the purpose of 'whitespace' in programming?
• Where can you observe the values of the motors and integrated encoders while the robot runs?
• In an If-Else statement, what does the Else branch do?
• What is the primary function of an encoder in a robotic system?
• What is a programming language?
• How many Integrated Encoders can be daisy-chained together on a robot?
• What would happen if a robot is set to operate with PID while at a constant speed?
• What is an effective way to resolve the issue of a robot not stopping while making a turn?
• What action can a robot take to self-correct its forward motion?
• What are the components of a while loop?
• What range of values can the joysticks provide in VEX Robotics?
• Which statement is true about programming errors related to missing punctuation?
• The moveMotorTarget command is designed to:
• What causes the robot to continue in a circle despite two motor commands?
• Is it true that jittery arm movement can occur if one If statement turns on the motor and another Else statement turns it off?
• True or False: Changing the camera view can be helpful when solving a programming challenge.
• What is a required part of a while loop aside from the condition?
• What can affect the accuracy of the Line Tracking Sensors?
• Which command is used to reset the values of the Integrated Encoders?
• True or False: Sensor names must always contain special characters to differentiate them from motor names.
• What happens to the Ultrasonic Rangefinder’s value if it detects an object?
• What happens if the motor power levels are set too differently when tracking a curve?
• In the context of robotics, what does the equation Speed x Time = Distance illustrate?
• What does it indicate when a command appears in color when typed in ROBOTC?
• Which statement is true about using three Line Tracking Sensors for a robot?
• What is the correct duration to move a robot for 5 seconds in programming?
• How do you call a function in programming?
• What is the range of light intensity readings from the Line Tracking Sensor?
• Which of the following does NOT affect the ability of a robot to run straight?
• When should the VEXnet joysticks be calibrated?
• True or False: When the robot reaches a function call in the program, it runs the code in the body of the function.
• How can the robot determine it is veering off course?
• Which combination of motor power levels is most effective for following straight lines?
• Is it true that an idle loop is only used between the Autonomous and User Controlled Periods?
• Which of these is a proper variable name?
• What is a characteristic of pragma statements?
• What is the role of the ROBOTC firmware in the VEX Cortex?
• True or False: A millisecond is a millionth of a second.
• What are the two processors present in the VEX Cortex?
• Which command allows access to values from the VEXnet remote control?
• Which of the following is not considered an analog sensor?
• What value is used to represent full power on a motor?
• If a motor is moving too slowly, what action does the PID speed control algorithm take?
• True or False: The left encoder counting down from zero indicates a programming problem.
• True or False: The encoder values should be reset every time you want to use the encoders to control a robot movement.
• What happens if the VEXnet joystick firmware is not up to date?
• In your program, the WHILE loop was used to control:
• How often should a robot check its motor encoder when using PID?
• What defines a simple statement in programming?
• True or False: An IF-ELSE statement executes one portion of code if the IF statement is false.
• Which of the following is necessary for effective line following with a robot?
• What is the primary way to debug a program in ROBOTC?
• True or False: Logging into the Robot Virtual Worlds software allows you to save your progress.
• What should be done before running the program on the virtual robot?
• What are the steps required to use a function?
• Why are ambient conditions important for the accuracy of the Line Tracking Sensor?
• What happens if there are no more statements to run in the program?
• What determines whether a turn is a swing turn or a point turn?
• What facilitates communication between functions and the main program in coding?
• Which function can be used to stop the robot while a program is running in ROBOTC?
• Where must encoder wires be plugged into?
• True or False: A swing turn requires both motors to be actively turning in the same direction.
• True or False: Pressing the Show button in the Measurement Toolkit will activate or deactivate its features.
• Why is it necessary to clear the encoder values?
• True or False: Single-line comments can greatly affect the execution of a program.
• What steps must be taken to reverse a robot's direction?
• Which format is used to organize programming logic in ROBOTC?
• True or False: The Integrated Encoders and Shaft Encoders share common features.
• What must be true for a robot to run straight?
• Which functionality does the PID algorithm enhance when controlling motors?
• Which coding structure is executed multiple times until a condition is no longer true?
• How do you incorporate a custom name into a program for motor control?
• Where can you find the option to download your program?
• Which of the following is a valid way to denote a string in many programming languages?
• When decreasing speed and increasing time, what will be the result concerning distance?
• True or False: All Line Tracking Sensors return the same values when detecting the same dark line.
• How do Integrated Encoders connect to the VEX Cortex?
• What type of turn is described as one motor being stopped while the other is moving?
• How does altering the encoder counts affect a robot's movement in a program?
• What is the resolution of the Integrated Encoders based on?
• What is the purpose of the Program Debug Window in ROBOTC?
• Which of these is not part of the function definition?
• What is an idle loop in programming?
• What invalid assumption could be made about the functionality of Line Tracking Sensors?
• True or False: The VEXnet joystick firmware should be downloaded when batteries are changed.
• What is the Master Firmware?
• Where do you specify a parameter in a function?
• How can you determine the values returned by the Line Tracking Sensor?
• True or False: The VEXnet joystick firmware needs to be updated when a newer version of ROBOTC is released.
• What does the getMotorTargetCompleted command return when the specified motor encoder has reached the target value?
• True or False: The Line Tracking Sensor is not affected by ambient light.
• How can you combine multiple If-Else statements?
• True or False: PID should be enabled in remote control programs.
• What is typically included after the function name when defining a function?
• What is the value of the Ultrasonic Rangefinder when it cannot detect an object?
• True or False: Setting motors to full speed with PID will always yield the best results.
• Which representation of Task Main will work in ROBOTC?
• What is the main purpose of the Motors and Sensors Setup menu in ROBOTC?
• What effect does not clearing encoder values have on the robot's performance?
• Is it true that only one If Statement is required to control an arm's movement up and down?
• What occurs if one paired punctuation mark, such as a parenthesis, is missing?
• True or False: Curly braces surround what the robot will run as part of the main program, or task.
• Which factor is irrelevant to determining wheel speed in robotic movement?
• Are simple behaviors made up of complex behaviors? True or False?
• Which type of variable can store multiple values in VEX Robotics programming?
• Which of these is not a string?
• How is the robot able to calculate its speed?
• What role does the infrared LED play in the operation of the Line Tracking Sensor?
• What does the term 'call a function' refer to?
• Which aspect of the robot does the PID control primarily affect?
• Which set of buttons is used to control the Measurement Toolkit?
• Which of the following statements is false regarding a Line Tracking Program?
• Which of these statements is true regarding the operation of a while loop?
• How does an 'IF' statement differ from a WHILE loop?
• How do you place a custom marker in the virtual world using the Measurement Toolkit?
• In programming, what purpose do comments serve?
• True or False: The Line Tracking Sensor gives high readings for light surfaces and low readings for dark surfaces.
• Which programming approach is best for controlling the duration of tracking behavior?
• The assignment of a String must include:
• What is the primary function of a shaft encoder in robotics?
• If the WHILE loop were not present in the program, what would happen to the IF statements?
• Which command would best be utilized to extend movement duration to 10 seconds?
• The role of the robot is to carry out the plan by following the steps in the program. True or False?
• True or False: The VEXnet joystick firmware must be downloaded every time it is used.
• How do you enable PID in ROBOTC?
• Which of the following is NOT a characteristic of a simple statement?
• When using a variable, you must specify which two things?
• Which of these is an Integer?
• What is the term for the difference between the desired speed and actual speed of a motor?
• What distinguishes direct mapping from indirect mapping in VEX Robotics?
• How many counts correspond to one rotation of the shaft encoder?
• True or False: The while loop constantly checks its condition.
• What happens if you don't reset encoder values before using them?
• What functionality does the Measurement Toolkit provide in the Robot Virtual Worlds?
• How many analog sensor ports are available on the VEX Cortex?
• Which of these is not a character?
• What modification might prevent a robot from drifting while moving straight?
• True or False: The moveMotorTarget command can be compared to a good driver who slows to a stop.
• How can you select different views of the robot in the Robot Virtual World software?
• True or False: The VEX Cortex should be powered OFF when connected to a computer.
• How are Channel 2 and Channel 3 identified on the VEXnet remote control?
• What is a loop that checks a condition but repeats no commands called?
• Where should you declare a function in a program?
• True or False: ROBOTC programs can be downloaded over VEXnet.
• Which conditions should trigger an update of the VEXnet joystick firmware?
• What action should be taken if the VEX Cortex is not recognized by the computer?
• Once a motor has been given a custom name, what is required regarding its usage in programming?
• Which of the following describes integers?
• True or False: If you are going to use a parameter with the same value more than once in a program, it is not necessary to provide a value for the second or subsequent times you use it.
• True or False: An IF-ELSE statement allows simultaneous execution of two portions of code.
• Which programming concept allows for the looping of a set of instructions?
• Why should the firmware of the VEXnet joystick be updated before its first use?
• How does the encoder influence the tracking of a curved line?
• Which action will not allow the robot to move accurately in a straight line?
• What is a potential issue when using only the left sensor for tracking?
• Which term describes a convenient way to express what the robot is doing?
• Which of the following best describes the function of the ROBOTC firmware?
• What happens when you try to place a fourth waypoint using the Measurement Toolkit?
• True or False: You can reflect the polarity of a motor in ROBOTC using the Motors and Sensors Setup menu.
• What does the term 'user processor' refer to in the context of the VEX Cortex?
• In the Labyrinth using Encoders program, which method is used to change the distance the robot travels?
• What should you do if you only see Automatic Selection when selecting the communications port for your Cortex?
• After downloading your program, how can you run it on the robot?
• True or False: When using a parameter, you must declare the type of data the parameter will hold.
• How can you clear the markers that have been placed in the Measurement Toolkit?
• Which of the following is considered an improper variable name in ROBOTC?
• How do you create a multi-line comment in your program?
• Which of the following statements about encoders is true?
• True or False: Changing the Pragma statements should always be done manually.
• If you only see "Automatic Selection" when selecting the communications port to download firmware to the Cortex, what should you do?
• In programming, what does declaring a variable mean?
• Is it true that ROBOTC must have a connection with the robot for the Sensor Debug Window to work?
• When tracking curved lines, how should the motor power levels be set?
• How does wheel rotation distance affect line tracking on a curve?
• True or False: When the robot reaches a variable in the program, it checks the value stored in the variable.
• What mechanism does the Line Tracking Sensor use to function?
• What marks the end of a multiline comment?
• In programming a robot, which command would effectively stop the motors?
• After downloading your program and selecting a virtual robot, how do you run the program?
• What does the ROBOTC firmware do?
• How do you transfer a program from ROBOTC to the virtual robot?
• Which command retrieves the current value of the Integrated Encoders?
• What information does the Sensor Debug Window provide?
• What does the Master Firmware represent in the VEX Cortex?
• What is the purpose of using the WHILE loop in robotics programming?
• What is the purpose of using parameters in functions?
• What is a program in the context of robotics?
• If the left Line Tracking Sensor sees dark, what should the robot do?
• True or False: The VEX Cortex should be powered OFF when you connect it to the computer.
• What determines how far or how long the line tracking behavior runs?
• What effect does increasing the PID proportional gain have on motor control?
• What begins a single-line comment in programming?
• What kind of information can Integrated Encoders provide?
• Which component is essential for a robot to effectively communicate with a programming interface?