SACA Robotics and Automation 2

Question 1

What defines the 'workspace' of an industrial robot arm?

Accepted Answer

The three-dimensional volume that the robot's tool center point (TCP) can reach

Answer

The workspace (or work envelope) is the complete set of positions in 3D space that the robot's tool center point can reach, determined by the robot's kinematic configuration, link lengths, and joint angle limits.

Question 2

What is 'teach pendant programming' in industrial robotics?

Accepted Answer

Manually guiding the robot through desired positions while recording the joint angles for playback

Answer

Teach pendant programming involves a technician physically jogging the robot arm to each required position using a handheld pendant controller, then recording those positions as waypoints that the robot replays during production.

Question 3

What distinguishes a 'collaborative robot' (cobot) from a traditional industrial robot in terms of safety design?

Accepted Answer

Cobots are designed with force/torque sensing and power limiting to safely stop when contact with a person is detected

Answer

Cobots (ISO/TS 15066) implement safety-rated force and power limiting, so they automatically stop or reduce speed when they detect unexpected contact — allowing them to work alongside humans without physical safety barriers in many applications.

Question 4

In industrial robot programming, what does 'tool center point' (TCP) calibration accomplish?

Accepted Answer

It defines the position and orientation of the active tool tip relative to the robot's mounting flange

Answer

TCP calibration tells the robot controller exactly where the tool tip is relative to the robot's tool flange (mechanical interface), enabling the robot to control the tool tip position precisely and correctly during Cartesian moves and coordinated motions.

Question 5

What is 'dead reckoning' in autonomous mobile robot navigation, and what is its primary limitation?

Accepted Answer

Estimating current position by integrating wheel encoder data from a known starting point; limited by cumulative error accumulation

Answer

Dead reckoning integrates wheel odometry (encoder counts × wheel circumference) from a known starting position to estimate current location. Small errors in each measurement accumulate over distance, causing growing position uncertainty.

SACA - Smart Automation Certification Alliance Practice Test

SACA - Smart Automation Certification Alliance Practice Test

SACA Robotics and Automation 2