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VEX VR S2 Exam

Authored by Rafael Guzman

Computers

9th - 12th Grade

Used 1+ times

VEX VR S2 Exam
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How can the following example be simplified by using a [Repeat] block?

By placing the [Drive for] and [Turn for] blocks in a [Repeat] block that repeats four times.

By placing the [Drive for] block in a [Repeat] block that repeats four times.

By placing the [Turn for] block in a [Repeat] block that repeats four times.

By changing all of the parameters of the [Drive for] blocks to 400 millimeters (mm) instead of 200 millimeters (mm).

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

When will the VR Robot move the VR Pen up?

Before the [Repeat] block has repeated all of the blocks inside of it twice.

Before the VR Pen is set to the color red.

After the [Repeat] block has repeated all of the blocks inside of it six times.

After the [Repeat] block has repeated all of the blocks inside of it twice.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In this sample project the VR Robot should get to the number "2" in the Wall Maze, but it does not. Which of the following describes the error in this project?

A drive_for command is missing.

A less than (<) operator was used instead of a greater than (>) operator.

A turn_for command was used instead of turn command.

A turn_to_rotation command is missing.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following describes how the VR Robot will move in this project?

The VR Robot will drive forward while the Distance Sensor reports a distance less than 150 millimeters away from an object, then stop.

The VR Robot will drive forward while the Distance Sensor reports a distance greater than 150 millimeters away from an object, then stop.

The VR Robot will drive exactly 150 millimeters then stop.

The VR Robot will drive forward, stop, drive forward again for 150 millimeters then stop.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following describes why the VR Robot will not move in this example project?

The distance between the Distance Sensor and the object is less than 150 millimeters (mm) away.

The Left Bumper is not being pressed.

The distance between the Distance Sensor and the object is greater than 150 millimeters (mm) away.

The VR Robot will immediately crash into a wall if it moves.

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

This project is intended to drive to number '61' on the Number Grid Map Playground but does not work. Number '61' has the coordinates X: -900 and Y: 300. What is the error?

The <Less than> block should be set to -300.

This project should use a <Greater than> block instead of a <Less than> block and be set to -900.

This project should use a <Greater than> block instead of a <Less than> block and keep the same

parameters.

d. The <Less than> block should be set to -900 instead of 300.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

This project is intended to drive to number "91" on the Number Grid Map Playground but the project is incomplete. What block from the Sensing category should be placed in the first [Wait until] block?

(Position of Robot) block

(Distance from) block

(Timer value) block

block

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