SACA Robotics and Automation 4

Question 1

Which robot configuration is best suited for tasks requiring a large spherical work envelope with high reach?

Accepted Answer

Articulated arm robot

Answer

Articulated arm robots mimic the human arm with multiple rotational joints, providing a large, flexible spherical work envelope.

Question 2

In industrial automation, what does the term 'jerk' refer to when describing robot motion?

Accepted Answer

Rate of change of acceleration

Answer

Jerk is the rate of change of acceleration over time, and controlling it helps reduce mechanical stress and improve motion smoothness.

Question 3

A pick-and-place robot must select parts from a moving conveyor. Which sensor technology is most commonly used to locate and identify parts on the moving belt?

Accepted Answer

Machine vision camera system

Answer

Machine vision camera systems can identify part position, orientation, and type on a moving conveyor, enabling accurate pick-and-place operations.

Question 4

What is the primary advantage of using a parallel kinematic robot (e.g., Delta robot) over a serial kinematic robot for high-speed pick-and-place?

Accepted Answer

Higher speed and acceleration due to lower moving mass

Answer

Parallel kinematic robots have their actuators fixed to the base, so the moving structure has low inertia, enabling very high speeds and accelerations.

Question 5

In robot programming, what is a 'singularity'?

Accepted Answer

A configuration where the robot loses one or more degrees of freedom

Answer

A singularity is a robot configuration where two or more joint axes become aligned, causing a loss of a degree of freedom and unpredictable motion.

SACA - Smart Automation Certification Alliance Practice Test

SACA - Smart Automation Certification Alliance Practice Test

SACA Robotics and Automation 4