Font size
WorksheetsRobotics Unit-2 - Short Quiz
Total questions: 20
Worksheet time: 11mins
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
Identify the mechanical gripper.
Screw actuated
Cam actuated
Gear and rack actuated
Identify the mechanical gripper.
Screw actuated
Cam actuated
Gear and rack actuated
Identify the mechanical gripper.
Screw actuated
Cam actuated
Gear and rack actuated
Fa and Fg mean
Actuation force & Gripper force
Applied force and Gravity force
Actuation force & Gravity force
Lever force and Friction force
Which of the following gripper can handle only objects with flat, smooth and clean surface?
Mechanical gripper
Vacuum cups
Magnetic gripper
Adhesive gripper
In vacuum cup grippers, _________ is a cheap device used to create vacuum.
a suction device
a venturi device
a vacuum pump
While grasping a glass plate with a suction cup, the pressure inside the cup must be __________ the pressure outside the cup (atmospheric pressure).
greater than
lesser than
equal to
Which of the following is an advantage of a magnetic gripper?
Pick up times are very fast
Require only one surface for gripping
Variation in part sizes can be tolerated
Can handle only ferrous materials.
Which gripper is suitable for handling fabrics?
Magnetic gripper
Vacuum gripper
Adhesive gripper
Scoops
Which of the following can be used to grasp the inside of a cup-shaped container?
Two jawed mechanical gripper
An inflatable bladder
Scoop
A spot welding tool
