Robotics Unit-2 - Short Quiz

A device that attaches to the wrist of the robot arm and enables the general-purpose robot to perform a specific task is called as

• Robot fingers

• End effector

• Task Finsher

• Special Tool

End effectors can be divided into the following two major categories:

• Grippers

• Tools

• Scoops

• Anthropomorphic hands

Grippers are of _____________ nature.

• mechanical

• pneumatic

• magnetic

• all

A double gripper has two gripping devices attached to the wrist and is used to handle two separate objects.

• True

• False

A mechanical gripper is an end effector that has mechanical fingers which

• are also called as jaws

• can be detached and replaced

• make proper contact with the object

• are mostly two in number

A circular shaped object can be grasped

• by making the contacting surfaces to be circular

• by controlling friction between finger and object

• both

While grasping and lifting an object, the object must not slip from the fingers. The friction force must be greater than

• gravity forces

• acceleration forces

• gravity and acceleration forces

• gravity, acceleration and other external forces

If the friction force is more than the weight of an egg being lifted,

• the egg slips

• the egg breaks

Which of the following is not a mechanical gripper?

• Cam actuated gripper

• Screw actuated gripper

• Rope and Pulley actuated gripper

• Adhesive gripper

The purpose of the gripper mechanism is to convert input power into the required motion and force to grasp and hold an object.

• True

• False