Robotics Final Exam Guide Questions and
CORRECT Answers
What is the main benefit of using a robot to perform a dangerous job like reconnaissance in a
hostage situation or dealing with explosive devices? - CORRECT ANSWER-✔✔ The robot
takes the risk so that humans do not have to.
What are the three R's of robots? - CORRECT ANSWER-✔✔ Robots Require Respect
Who made it a requirement that any time you enter a robot's work envelope you take the
teach pendant with you, and what is one of the main benefits of having the teach pendant? -
CORRECT ANSWER-✔✔ OSHA, the system had an E-stop on it to shut down the robot if
needed.
What are the general rules for dealing with emergencies? - CORRECT ANSWER-✔✔ GR 1 -
remain calm
GR 2 - Assess the situation
GR 3 - perform to the level of your training
GR 4 - after its over, talk it out
What is the difference between AC and DC electricity? - CORRECT ANSWER-✔✔
Electrons can flow in one direction, which we call direct current DC, or it can flow back and
fourth in a circuit, which we call alternating current AC
One amp is equal to ________________________________ electrons flowing past a
measured point in one second. - CORRECT ANSWER-✔✔ 6.25x10^18
Why does the dead man switch kill the robot's manual actions when released or pressed to
hard? - CORRECT ANSWER-✔✔ This is because when something goes wrong, say that the
robots hits you upside the head, your reaction is either to let go or grip the switch too tight,
thus the reason these actions stop all movements.
What is the benefit of having more degrees of freedom in a robot? - CORRECT ANSWER-
✔✔ The more DOF's a robot has, the more complex and organic the movements.
, How do we number the axis of a robot? - CORRECT ANSWER-✔✔ We commonly start at
the base and number outward.
What is the speed of the drive pulley, regardless of the pulley ratio? - CORRECT ANSWER-
✔✔ Since the drive pulley attaches to the motor, the revolutions per minute of the drive
pulley is determined by the motor.
What happens when we place gears too close together or too far apart? - CORRECT
ANSWER-✔✔ Placing the gears to close will cause binding or make it impossible to mount
the gears while placing them to far apart can lead to gear damage, loss of power, and
excessive wear.
Where do we attach the End - Of - Arm - Tooling? - CORRECT ANSWER-✔✔ Attached to
the end of the robots wrist or minor axex.
What is the primary tooling type that predates the industrial robot? - CORRECT ANSWER-
✔✔ Grippers
What can you do to correct a limit switch in the field that has an actuator in the wrong
position? - CORRECT ANSWER-✔✔ By removing the appropriate screws and then turning
the actuator as needed
What is the benefit of disengaging the axes as opposed to the E - stop method of impact halt?
- CORRECT ANSWER-✔✔ It reduces the force the robot has to stop, reduces the energy of
the impact, and reduces the stress on the robot's internal system.
What is the difference between open - loop and closed - loop control system? - CORRECT
ANSWER-✔✔ Open loop systems work on the assumption that the control pulse, whatever it
may be, activates the motion system and the robot performs as expected. Closed loop systems
send out the control pulse, whatever it may be, to initiate the movement and then receive back
a signal that confirms movement and in many cases which direction and how far.
What are the components of the core robotic system? - CORRECT ANSWER-✔✔ The robot,
controller, teach pendant, built in sensors, and power supply.
CORRECT Answers
What is the main benefit of using a robot to perform a dangerous job like reconnaissance in a
hostage situation or dealing with explosive devices? - CORRECT ANSWER-✔✔ The robot
takes the risk so that humans do not have to.
What are the three R's of robots? - CORRECT ANSWER-✔✔ Robots Require Respect
Who made it a requirement that any time you enter a robot's work envelope you take the
teach pendant with you, and what is one of the main benefits of having the teach pendant? -
CORRECT ANSWER-✔✔ OSHA, the system had an E-stop on it to shut down the robot if
needed.
What are the general rules for dealing with emergencies? - CORRECT ANSWER-✔✔ GR 1 -
remain calm
GR 2 - Assess the situation
GR 3 - perform to the level of your training
GR 4 - after its over, talk it out
What is the difference between AC and DC electricity? - CORRECT ANSWER-✔✔
Electrons can flow in one direction, which we call direct current DC, or it can flow back and
fourth in a circuit, which we call alternating current AC
One amp is equal to ________________________________ electrons flowing past a
measured point in one second. - CORRECT ANSWER-✔✔ 6.25x10^18
Why does the dead man switch kill the robot's manual actions when released or pressed to
hard? - CORRECT ANSWER-✔✔ This is because when something goes wrong, say that the
robots hits you upside the head, your reaction is either to let go or grip the switch too tight,
thus the reason these actions stop all movements.
What is the benefit of having more degrees of freedom in a robot? - CORRECT ANSWER-
✔✔ The more DOF's a robot has, the more complex and organic the movements.
, How do we number the axis of a robot? - CORRECT ANSWER-✔✔ We commonly start at
the base and number outward.
What is the speed of the drive pulley, regardless of the pulley ratio? - CORRECT ANSWER-
✔✔ Since the drive pulley attaches to the motor, the revolutions per minute of the drive
pulley is determined by the motor.
What happens when we place gears too close together or too far apart? - CORRECT
ANSWER-✔✔ Placing the gears to close will cause binding or make it impossible to mount
the gears while placing them to far apart can lead to gear damage, loss of power, and
excessive wear.
Where do we attach the End - Of - Arm - Tooling? - CORRECT ANSWER-✔✔ Attached to
the end of the robots wrist or minor axex.
What is the primary tooling type that predates the industrial robot? - CORRECT ANSWER-
✔✔ Grippers
What can you do to correct a limit switch in the field that has an actuator in the wrong
position? - CORRECT ANSWER-✔✔ By removing the appropriate screws and then turning
the actuator as needed
What is the benefit of disengaging the axes as opposed to the E - stop method of impact halt?
- CORRECT ANSWER-✔✔ It reduces the force the robot has to stop, reduces the energy of
the impact, and reduces the stress on the robot's internal system.
What is the difference between open - loop and closed - loop control system? - CORRECT
ANSWER-✔✔ Open loop systems work on the assumption that the control pulse, whatever it
may be, activates the motion system and the robot performs as expected. Closed loop systems
send out the control pulse, whatever it may be, to initiate the movement and then receive back
a signal that confirms movement and in many cases which direction and how far.
What are the components of the core robotic system? - CORRECT ANSWER-✔✔ The robot,
controller, teach pendant, built in sensors, and power supply.
