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WorksheetsFinal Exam
Total questions: 15
Worksheet time: 8mins
What is the main purpose of task main() in a ROBOTC program?
To define motor ports
To start the robot’s execution
To declare variables
To stop the robot
What does the following line of code do? motor[rightMotor] = 75;
Sets the motor to 75% power
Sets the motor to full power
Stops the motor
Sets the motor to rotate 75 degrees
What is the purpose of the command wait1Msec(1000)?
Pauses the program for 1 second
Repeats the program 1000 times
Runs the motor for 1000 rotations
Stops all motors permanently
Why are loops important in robot programming?
They reduce motor torque
They allow actions to repeat automatically
They increase battery life
They stop errors from occurring
In a series circuit, how does current flow?
Only through the largest resistor
Through multiple paths
Randomly through the circuit
Through only one path
What is an advantage of a parallel circuit?
One failure stops the entire circuit
Components receive full voltage
Higher total resistance
Lower voltage at each component
What happens if one component fails in a series circuit?
Voltage increases
The entire circuit stops working
Only that component stops
The remaining components work normally
According to Ohm’s Law, current is equal to:
Voltage + Resistance
Voltage × Resistance
Resistance ÷ Voltage
Voltage ÷ Resistance
A circuit has 12V and 6Ω of resistance. What is the current?
0.5 A
1 A
2 A
6 A
What type of energy does a DC motor convert into motion?
Thermal energy
Chemical energy
Light energy
Electrical energy
What happens to a DC motor’s speed when voltage increases?
Motor reverses direction
Speed decreases
Speed stays the same
Speed increases
What does an amp-hour (Ah) rating measure?
Motor speed
Battery voltage
Amount of current over time
Resistance in a circuit
Why are amp-hours important when choosing a robot battery?
They determine motor direction
They determine how long a robot can run
They increase torque
They control motor speed
A robot draws 0.5 A from a 1 Ah battery. How long will it run?
30 minutes
1 hour
2 hours
4 hours
Which robot type moves along three linear axes (X, Y, Z) and has a rectangular work envelope?
Cartesian
Spherical
Cylindrical
SCARA
