Which of the following is responsible for the mechanical part of a robot?

1. Giving shape to the robot
2. Allowing interaction with outer environment
3. Protecting robot's electronic part
4. All of the above

Revolute joint shows rotation along …………… .

1. Single axis
2. Multiple axis
3. Either a or b
4. None of these

Fill in the blanks:

1. The ……………. are the tools used to interact with the outer environment.
2. ……………. is very important in medical robots.
3. The end effector for a painter robot would be a ……………. .
4. Tinkercad can be used for 3D designing and ……………. .

What is Tinkercad?