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1.

Consider the following statements:1. Robots take permissible actions only.2. All actions that are obligatory for robots are actually performed by them subject to ties and conflictsamong available actions.3. All permissible actions can be proved by the robot to be permissible and it can be explained inordinary English.Which of the above statements are correct?1. 1 and 3 only2. 1 and 2 only3. 2 and 3 only4. 1, 2 and 3

Answer» Correct Answer - Option 2 : 1 and 2 only

For a robot to be ethically correct, the robots take only permission action. All relative actions

that are obligatory for robots are actually performed by them subjected to ties and conflicts among

available action.

All robot action cannot be explained by ordinary English.
Discussion
2.

Consider the following statements relating to the term ‘Robot Repeatability:1. It is a statistical term associated with accuracy in the action.2. It is a measure of the ability of the robot to position the tool tip in the same place repeatedly3. It does not described the error with respect to absolute coordinates.Which of the above statements are correct?1. 1 and 2 only2. 1 and 3 only3.  2 and 3 only4. 1, 2 and 3

Answer» Correct Answer - Option 4 : 1, 2 and 3

Concept:

Robot Repeatability:

  • It is the ability of the robot to reposition itself to a position to which it was previously commanded or trained.
  • Repeatability and accuracy are similar, however, they define slightly different performance concepts.
  • It is a statistical term that is widely used in Robotics which associates the accuracy of robots in action.
  • Robot Repeatability is a measure of the ability of the robot to position the tool-tip in the same place again and again.
  • Repeatability is doing the same task over and over again, while accuracy is hitting your target each time, and also it does not describe the error with respect to absolute coordinates.
Discussion
3.

The following measures are carried out by internal state sensors of the end effector.1. Position2. Position and Velocity3. Velocity and Acceleration4. Position, Velocity and Acceleration

Answer» Correct Answer - Option 4 : Position, Velocity and Acceleration

Explanation:

End effector:

The end effector is the hand connected to the robot's arm. The end effector in the form of the gripper, vacuum pump, tweezer, scalpel etc. is just about anything that helps it to do the job.

Sensor:

Sensors play an important role in the functioning of robots. Sensors are basically measurement devices that translate one form of signal into another. They are used in the robots for feedback purposes. The feedback system helps in guiding the robot end-effector along the proper path for proper operations.

Sensors are classifieds as:

  • Internal state sensors
  • External state sensors

 

Internal state sensors:

  • They are basically used for the detection of variables that help in identifying the orientation of the tool-tip and manipulator joints.
  • Example: position, velocity, and acceleration from potentiometers, LVDT, etc.

External state sensors:

  • External state sensors are used for the detection of variables such as the range of the target or the concerned object of interest to be picked or moved
  • Example: Strain gauges, proximity sensors, etc.
Discussion