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4.   Which of the following sensors are used in the automation industries for accurate movement of the
                         robotic arm?
                          (i)  Pressure                                    (ii)  Positioning

                         (iii)  Proximity                                  (iv)  Light

                      5.                    controllers repeat the same operation over and over.
                          (i)  Simple                                      (ii)  Strong Sensory Controller

                         (iii)  Hydraulic                                  (iv)  None of these

                  B.  Fill in the blanks using the words given below.

                                          arm   CPU   Electricity   programmable   Hydraulic

                      1.  Robots are                   machines.
                      2.  Manipulators are just like human                 .
                      3.                    locomotion device uses oil to facilitate movement.

                      4.  The                   of a robot responds on the basis of data collected by its sensors.
                      5.                    is the primary source of energy for most robots.

                  C.  State whether these statements are true or false.
                      1.  End effectors are controlled through a computer.
                      2.  Robots use the feedback system to respond to their surroundings.
                      3.  Any robot can function without sensors.

                      4.  Satellites get their power from solar panels.
                  D.  Answer the following questions:

                      1.  What is an end effector?




                      2.  What is a manipulator?





                      3.  Write any two differences between humans and robots.





                      4.  Write a short note on the Locomotion device.





                      5.  How are sensors important to robots?








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