Robotics Quiz
Questions: 16 · 10 minutes
1. Which robot component converts electrical, hydraulic, or pneumatic energy into physical motion?
A controller
An actuator
A sensor
A power regulator
2. A mobile manipulator becomes unstable while carrying a heavy object high above its base. Which change would most directly improve stability during transport?
Raise the object and increase turning speed
Lower the object and reduce acceleration
Use a higher camera frame rate
Increase arm reach while keeping the same base
3. Which statement about collaborative robots is most accurate?
Their application still requires a task-specific risk assessment
They can operate beside people without any safeguards or limits
They are defined solely by having a lightweight arm
They cannot use grippers or other powered tools
4. A mobile robot builds a map of an unfamiliar building while estimating its own position within that map. Which robotics problem is it solving?
Forward kinematics
Pulse-width modulation
Static object classification
Simultaneous localization and mapping
5. A gripper must pick up fragile fruit whose size varies. Which feature would most directly help it avoid applying excessive force?
A higher-resolution navigation map
A higher maximum motor speed
A rigid open-loop closing command
Closed-loop force or tactile feedback
6. A robot arm repeatedly overshoots its target because its controller lacks accurate information about joint movement. Which addition would most directly improve feedback?
A larger battery
A wider gripper
Joint encoders
A wireless access point
7. A human uses a joystick to control a remote robot's movements in real time. Which mode of operation does this describe?
Fully autonomous navigation
Offline path planning
Teleoperation
Teach-and-repeat playback
8. An engineer knows the desired position and orientation of a robot gripper and needs to calculate the required joint angles. Which process is needed?
Inverse kinematics
Forward dynamics
Sensor fusion
Path smoothing
9. Ignoring conversion losses, approximately how much energy does a 24-volt, 10-ampere-hour battery store?
240 watt-hours
34 watt-hours
100 watt-hours
2.4 watt-hours
10. A two-wheeled differential-drive robot must rotate in place. Which wheel command should it use?
Drive both wheels backward at different speeds
Drive both wheels forward at the same speed
Stop one wheel and drive the other forward
Drive the wheels at equal speeds in opposite directions
11. What is the primary purpose of an emergency-stop function on a robot system?
To save the current program before shutdown
To reset every sensor to its default value
To halt hazardous operation using the designed safety function
To disconnect the robot from its data network
12. A robot always stops 4 mm short of a target, but it reaches that same short position on every attempt. Which statement best describes its performance?
It is accurate but not repeatable
It is neither measurable nor repeatable
It is both accurate and repeatable
It is repeatable but not accurate
13. On a robotic arm, what is the tool or device attached at the wrist to interact with objects called?
The chassis
The drive train
The end effector
The teach pendant
14. A rotating sensor emits laser pulses and estimates the distance to surrounding surfaces from their returns. What type of sensor is it?
A tactile sensor
A LiDAR sensor
A wheel encoder
A monocular camera
15. In a PID controller, which term accumulates error over time and can help remove a persistent steady-state offset?
The proportional term
The integral term
The feedforward term
The derivative term
16. A robot cycles among Idle, Search, Approach, and Grasp modes, changing mode when explicit conditions are met. Which model most directly represents this logic?
A finite-state machine
An occupancy grid
A PID control loop
A Kalman filter