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Page 81 - Toucpad robotics C11
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    4.  The workspace of a robot is defined as:
                             i.  Maximum payload it can lift                 ii.  Area or volume its end-effector can reach

                            iii.  Power consumed in one cycle               iv.  Speed of rotation of motors
                        5.  If an industrial robot is designed with higher payload capacity, which of the following will also increase?
                             i.  DOF                                         ii.  End-effector precision

                            iii.  Structural strength of links and joints      iv.  Energy efficiency
                        6.  Which material is least suitable for a high-strength robotic manipulator?
                             i.  Aluminium                                   ii.  Steel

                            iii.  MDF                                       iv.  Carbon fibre
                        7.  Mecanum wheels are uniquely capable of:

                             i.  Lifting payloads vertically                 ii.  Allowing diagonal and sideways motion
                            iii.  Reducing friction in links                iv.  Increasing payload capacity
                        8.  The structural base of a mobile robot is also called:

                             i.  Work envelope                               ii.  Chassis
                            iii.  Link frame                                iv.  Gearbox

                        9.  The payload-to-weight ratio of a robot is crucial because:
                             i.  It determines the type of sensors needed
                             ii.  It measures efficiency of mechanical design

                            iii.  It depends only on controller software
                            iv.  It reduces DOF automatically

                        10.  A 2R (two-revolute joint) robotic manipulator primarily works in:
                             i.  Planar 2D workspace                         ii.  Spatial 3D workspace
                            iii.  Circular motion only                      iv.  Payload optimisation

                     B.  Fill in the blanks.
                        1.  The rigid parts of a robot that define its geometry are called        .

                        2.  The connectors between links that allow relative motion are known as           .
                        3.  A mechanism that works in two-dimensional space is called a              mechanism.
                        4.  A robotic manipulator’s end-effector can only move within its           .
                        5.                     determines how many independent motions a robot can achieve.
                        6.  In industrial robots,               defines the maximum weight safely handled.

                        7.  The most common lightweight material used in drones is              .
                        8.  Omni wheels allow                   movement without rotating the chassis.
                        9.                     robots require careful balance of workspace and payload for optimal performance.

                        10.  The structural stability of a robot is ensured by its       .
                     C.  State whether these statements are true or false.
                        1.  A robot’s workspace is unlimited if it has more degrees of freedom.

                        2.  MDF is a cost-effective material but not ideal for heavy industrial robots.

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                                                                                                              Mechanical System

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