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VEXcode VR Course Unit 4 Exam
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thomasbunce_92408
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  • Question 1
    30 seconds
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    Q.

    Which block reports if the Bumper Switch is pressed?

    answer choices

    <Distance found object>

    <Pressing bumper>

    <Color near object>

    <Bumper switch on>

  • Question 2
    30 seconds
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    Q.

    What values does the <Pressing bumper> block return?

    answer choices

    TRUE (pressed) or FALSE (released).

    Positive (pressed); Negative (released).

    Number values between one and ten.

    Distance from object in millimeters (mm).

  • Question 3
    30 seconds
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    Q.

    What will happen when the Bumper Sensor is pressed in this project?

    answer choices

    The VR Robot will turn left for 90 degrees.

    The VR Robot will stop moving.

    The VR Robot will turn right for 90 degrees.

    The VR Robot will drive in reverse for 200 millimeters (mm).

  • Question 4
    30 seconds
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    Q.

    What does the <Pressing bumper> block report if the Bumper Sensor is pressed?

    answer choices

    Reports TRUE.

    Reports FALSE.

    Reports a measured distance.

    Reports an object found.

  • Question 5
    30 seconds
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    Q.

    How could you use the Bumper Sensor in the Wall Maze challenge?

    answer choices

    To calculate the distances between the VR Robot and a wall.

    To instruct the VR Robot to turn when it bumps into a wall.

    To make the VR Robot ascend a wall to finish the maze faster.

    To determine the color of the wall.

  • Question 6
    30 seconds
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    Q.

    What do non-waiting blocks do in a VEXcode VR project?

    answer choices

    They repeat a behavior forever.

    They skip the next block in the stack.

    They allow the stack to continue even if the block's behavior is not yet complete.

    They should only be used in an emergency.

  • Question 7
    30 seconds
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    Q.

    Which statement is TRUE for waiting blocks?

    answer choices

    They wait for the user to select the "Step" button.

    They wait until the VR Robot has enough power to complete the task.

    They allow the rest of the stack to continue even if that block's behavior has not been completed.

    They pause the stack until that block's behavior has been completed.

  • Question 8
    30 seconds
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    Q.

    What does the highlighting feature do when a waiting block is being executed?

    answer choices

    A highlight will appear around the block until the behavior is complete.

    It will change colors depending on whether the project is running a waiting or non-waiting block.

    It will move to the next block to show the next behavior in the project.

    A highlight will stay on the block until the entire project is complete.

  • Question 9
    30 seconds
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    Q.

    What types of values does the [Wait until] block accept?

    answer choices

    Boolean values: TRUE or FALSE.

    Numeric values: one - ten.

    Color values.

    Time values.

  • Question 10
    30 seconds
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    Q.

    How often will the [Wait until] block check a Boolean condition?

    answer choices

    It will check repeatedly until the Boolean reports FALSE.

    It will check repeatedly until the Boolean reports TRUE.

    It will check once every minute until the project is complete.

    It will check only once.

  • Question 11
    30 seconds
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    Q.

    How is the <Pressing bumper> block used in this project?

    answer choices

    It pauses the project indefinitely.

    It causes the VR Robot to move forward for 200 millimeters (mm).

    It checks the condition of the Bumper Sensor. When TRUE, the VR Robot will turn right 180 degrees.

    It instructs the VR Robot to turn to 90 degrees.

  • Question 12
    30 seconds
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    Q.

    How is the [Wait until] block used with the <Pressing bumper> block?

    answer choices

    The <Pressing bumper> block is placed before the [Wait until] block.

    The [Wait until] block is placed before the <Pressing bumper> block.

    The <Pressing bumper> Boolean is placed in the hexagonal shape inside the [Wait until] block.

    Both blocks are placed side-by-side at the beginning of a project.

  • Question 13
    30 seconds
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    Q.

    How do you change a [Drive for] block from waiting to non-waiting?

    answer choices

    Select the arrow to expand "and don't wait".

    Place them in a Non Waiting "C" block.

    These blocks are always non-waiting blocks

    Add a hexagonal Boolean inside the [Wait until] block.

  • Question 14
    30 seconds
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    Q.

    Which Boolean reporter block would you use with [Wait until] to create a project that instructs the VR Robot to drive forward until the bumper sensor is pressed in this project?

    answer choices

    <Distance found object>

    <Pressing bumper>

    <Drive is moving>

    <Color sensing>

  • Question 15
    60 seconds
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    Q.

    What is the order in which behaviors will be executed in this project?

    answer choices

    Drive Forward until Left Bumper is pressed, Turn right for 90 degrees, Drive Forward until Left Bumper is pressed, Turn Left for 90 degrees, Drive Forward.

    Drive Forward; Turn Right for 90 degrees; Drive Forward when Left Bumper is pressed; Turn Left for 90 degrees\: Drive Forward when Left Bumper is Pressed.

    Drive Forward until Right Bumper is pressed, Turn Left for 90 degrees, Drive Forward, Turn Left for 90 degrees, Drive Forward.

    Drive Forward,Turn Right for 90 degrees, Drive Forward until Left Bumper is pressed, Turn Left for 90 degrees, Drive Forward until Left Bumper is Pressed.

  • Question 16
    30 seconds
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    Q.

    What does the conditional evaluate in the [Wait until] block?

    answer choices

    Is the bumper pressed.

    Has the Distance Sensor found an object in front of the VR Robot.

    Is the Color sensor close to an object.

    The timer value.

  • Question 17
    30 seconds
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    Q.

    Which is NOT a reason to use a condition in a VEXcode VR project?

    answer choices

    To utilize sensors in a project.

    To control the flow of a project.

    To create the best way for the VR Robot to run properly in a specific playground.

    To instruct the VR Robot to perform different behaviors depending on the conditional values that are reported.

  • Question 18
    30 seconds
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    Q.

    Where is the "Step" function located on the VEX VR interface?

    answer choices

    In the File menu.

    In the Monitor Window.

    On the Dashboard.

    In the toolbar between the "Start" and "Stop" buttons.

  • Question 19
    30 seconds
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    Q.

    Which of the following is NOT a reason to use the "Step" feature?

    answer choices

    To allow the user to observe a program and behaviors, one block at a time.

    To step backwards through a project.

    To trace the flow of a project in order to find and fix problems.

    To visualize which blocks are being executed at a given moment.

  • Question 20
    60 seconds
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    Q.

    This project was used to drive the VR Robot from Start to the number '1' in the Wall Maze Playground, but does not work correctly. What is the error?

    answer choices

    The project is missing a [Drive] block.

    The Robot stops before it reaches the number "1".

    Sequence of the blocks is incorrect.

    The last [Turn for] should be right instead of left.

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