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WorksheetsRobotics Exam
Total questions: 60
Worksheet time: 3600secs
Which of the following tools is best suited to precisely measure the inner dimension of a piece of C-Channel?
Measuring Tape
Caliper
Square
Compass
Which of the following tools is best suited to measure the length of a piece of metal that was the size of your desk?
Caliper
Ruler
Measuring Tape
Square
Which of the following is not a type of component failure?
Stripping
Cross Threading
Slipping
Shearing
Single points of attachment keep parts from _______________, but don't stop the parts from _______________.
coming apart, rotating
rotating, coming apart
bending, rotating
rotating, bending
What type of reinforcement is demonstrated in this picture?
Bracket Reinforcement
Diagonal Bracing
Additional Attachment Points
Spot Welding
What type of reinforcement is demonstrated in this picture?
Bracket Reinforcement
Diagonal Bracing
Additional Attachment Points
Spot Welding
Bracket Reinforcement
Diagonal Bracing
Additional Attachment Points
Spot Welding
What type of drawing is depicted in this image?
Outline Drawing
Assembled Drawing
Prototype Drawing
Exploded Drawing
What type of drawing is depicted in this image?
Outline Drawing
Assembled Drawing
Prototype Drawing
Exploded Drawing
If the _______________ is _______________ the support base, the structure stays standing. If it is not, it tips over.
center of mass, near
center of gravity, over
center of mass, heavier than
center of gravity, below
A wheel that is on the same axle or shaft as a motor is said to be _______________.
Indirectly Driven
Directly Driven
Indirectly Advantaged
Directly Advantaged
What is the name of the following component?
Wheel
Sprocket
Gear
Circle Bracket
True or False. Gears may be used to transmit force from one location to another.
True
False
The amount of speed and strength change in the force transmitted along a gear train is described as _______________.
Amplitude
Force Range
Mechanical Advantage
Rotational Force
_______________ is the term used to describe the strength of rotational force.
Speed
Torque
Mass
Velocity
Based on this drawing, what is the speed increase from the motor to the wheel, due to the gear train?
The wheel spins 4x for each rotation of the motor.
The wheel spins 2x for each rotation of the motor.
The wheel spins 6x for each rotation of the motor.
There is no speed increase.
True or False. In the following picture, both gears will turn at the same speed and in the same direction.
True
False
What is the name of the following components?
Bevel Gears
Sprocket Gears
Rack Gears
Worm Gears
Which type of component may be used to transfer rotational force into linear force?
Rack Gears
Crown Gears
Bevel Gears
Sprockets
Which type of component may be used to transfer rotational force into linear force?
Rack Gears
Crown Gears
Bevel Gears
Sprockets
Assume that there are two robots that are identical in every way, except for the size of their wheels. The robot with _______________ wheels will move _______________ than the other robot.
larger, slower
larger, faster
smaller, faster
Which of the following is true of larger wheels?
The wheels travel shorter per rotation than smaller wheels
The wheels travel farther per rotation than smaller wheels
The wheels travel the same distance as smaller wheels
The wheels moves slower
Which of the following increases with more motors?
Top speed
Torque and pushing/pulling power
Ability to turn precisely
All of the above
What is the purpose of a drivetrain?
Delivers torque to the robot’s brain
Connects the robot’s brain to its ports
Delivers power to the robot’s wheels
Connects the robot’s wheels to the robot’s brain
What happens when the mecanum wheels apply force as shown
The forces combine and the resulting force is left.
The forces that go to the side cancel each other out, so the resulting force is up.
The forces combine and the resulting force is right.
The forces that go to the side cancel each other out, so the resulting force is down.
How are omni-wheels different from regular (traction) wheels?
Omni wheels have better traction to climb hills
Omni wheels expand and contract to go over different types of terrain
Omni wheels have built-in rollers that rotate sidewaysOmni wheels are no different than regular (traction) wheels
Omni wheels are no different than regular (traction) wheels
What is the biggest advantage of a mecanum drive system?
Robots can maneuver in tight spaces because it can move in any direction
It is able to drive over loose parts or objects easily
It is able to self-balance itself if the robot has a heavy weight on one side of a robot
What are omni-wheels good at?
Omni wheels are good at allowing the robots to slide sideways
Omni wheels are good at centering weight of a robot even if the weight is imbalanced
Omni wheels are good at not allowing something to push the robot sideways
A robot's interface allows a user to...
Interact with the robot
Communicate with the robot
Control the robot
All of the above
All C++ programs start with...
VEX main ( ) { }
run main ( ) { }
int main ( ) { }
task main ( ) { }
What does the number 80 represent?
X-position
Y-position
Circumference
Radius
Which of the following punctuation marks represents the end of a single command?
Semicolon
Colon
Comma
Period
A _______ is a series of commands that are completed in a specific order.
Parameter
Sequence
Command
Program Flow
True or false: A robot completes tasks in a sequence in a random order.
True
False
What error is shown in the sequence below?
PenColor" should be lower case
There should be a period at the end of each command instead of a semicolon
"screen" in the first command should be uppercase
There are too many parameter values for the rectangles
Program Flow is referred to as...
the way a robot executes a program from bottom-to-top.
the way a robot executes a program from top-to-bottom.
the way a robot executes a program by alphabetical order.
the way a robot executes a program in a random order.
How will this code be displayed on the Robot Brain screen?
There will be two circles of the same size and same color next to each other
There will be two circles of the same size and same color overlapping each other
The circles are the same size and same location. The yellow circle is not visible because the purple circle is on top of it.
The circles are the same size and same location. The purple circle is not visible because the yellow circle is on top of it.
The robotic subsystem that provides the ability to move is known as a…
Drivetrain
Arm
Claw
Sensor
When your robot drives forward or reverse, it is following a linear path. When an object moves from one point to another in a straight line, it is known as ________________.
Linear acceleration
Linear movement
A to B movement
Forward movement
The robotic subsystem that provides the ability to grab objects is the...
Drivetrain
Arm
Claw
Sensor
True or False: There is a direct proportional relationship between how much the motors spin, how much the wheels spin, and how much the robot moves.
True
False
I want my robot to drive forward for 350mm and then reverse back to where it started. What would my program look like?
Drivetrain.driveFor(forward, 350, mm);
Drivetrain.driveFor(reverse, 350, mm);
Drivetrain.driveFor(forward, 350, mm);
Drivetrain.driveRev(reverse, 350, mm);
Drivetrain(driveForward, 350, mm).
Drivetrain(driveReverse, 350, mm).
Drivetrain.driveFor(forward, 350, mm);
Drivetrain.driveFor(reverse, 150, mm);
If a motor on a VEX V5 Clawbot spins 4 times, this means that the wheel spins..
2 times
3 times
4 times
8 times
How can the speed of a robot be increased?
Push it harder
Specify a higher velocity within the command
Make sure that there is limited friction between the wheels and the surface it is driving on
None of the above
How can I make my robot turn left at a right angle?
Drivetrain.turnFor(left, 180, degrees);
Drivetrain.turnFor(left, 90, degrees);
Drivetrain.turnLeft(90, degrees);
Drivetrain.turnLeft(180, degrees);
A helpful way to plan a program is to write a simple list of steps to code. This process is known as...
Precoding
Simple coding
Pseudocode
Map coding
True or False: The wheels on the VEX EDR V5 Clawbot can only turn at a 90-degree angle.
True
False
Rotational movement occurs when an object follows along a ________ path.
Curved
Bumpy
straight
narrow
Which of the following describes how far an object can rotate or slide before hitting some sort of limit?
Range of Motion
Range of Flexibility
Scope of Movement
Scope of Motion
When multiple gears are used to transmit motion and force, this is called a...
Wheel chain
Wheel train
Gear chain
Gear train
True or False: The speed and torque increases along a geartrain are defined as Mechanical Advantage.
True
False
If I want my robot to carry an object without dropping it, what brake type on the claw should I use?
coast
hold
brake
None of the above
What does SPPA stand for?
Sense, Program, Plan, Algorithm
Sense, Perception, Plan, Act
Sequence, Program, Plan, Act
Sequence, Perception, Plan, Algorithm
Which of the four robot capabilities allows a robot to comprehend where they are relative to the world?
Act
Plan
Perception
Sense
True or False: Robots will do exactly what you tell them to do.
True
False
A waitUntil command...
Holds program flow in that place
Needs a true condition to proceed in program flow
Helps a robot make a decision
All of the above
True or False: The Bumper Switch V2 allows the robot to sense light and colors.
True
False
A _________, expresses a value that can either be true or false.
Program value
Common value
Boolean Value
Algebraic value
Which of the following is a Boolean condition from the program?
(reverse)
.drive
velocityUnits::pct
(rearBumper.pressing());
What is a condition used for?
It evaluates if a statement is true or false
It ends program flow
It senses physical collisions
It reads multiple lines of code at once
