Page 79 - Toucpad robotics C11

B. Fill in the blanks.
1. The rigid structural segments of a robot are called .
2. Connections between links are called .

3. The range of movement of a robot is determined by its .
4. A mechanism that operates in two-dimensional motion is called a mechanism.
5. A robotic arm moving in 3D space uses a mechanism.
6. The capacity of a robot to carry or lift weight is called its .

7. The physical area that a robot can cover is known as its .
8. wheels enable sideways and diagonal movements without rotation.
9. MDF and Acrylic are often used in building prototypes.
10. A provides stability and anchoring for the mechanical system.

C. State whether these statements are true or false.
1. Joints in a robot are like muscles in a human body.

2. Spatial mechanisms allow motion only in 2D space.
3. Aluminium is preferred for robots requiring strength with light weight.
4. Degrees of freedom determine how versatile a robot’s movements are.
5. Mecanum wheels are used for simple forward and backward movement only.

D. Match the following:
1. Link a. Area robot can cover

2. Joint b. Connects two links, allows motion
3. Payload c. Weight a robot can handle
4. Workspace d. Rigid structural part
5. End-effector e. Performs the task (e.g., gripper)

SECTION B (Subjective Type Questions)

A. Short answer type questions.
1. What are links in a robotic mechanical system?
Ans. Links are rigid components that connect joints, forming the structure of a robot.

2. Define degrees of freedom in robotics.
Ans. Degrees of freedom are the independent movements a robot can make, determining its versatility.
3. Differentiate between planar and spatial mechanisms.
Ans. Planar mechanisms move in 2D space (like scissors), while spatial mechanisms move in 3D space (like
robotic arms).
4. What is meant by the payload of a robot?

Ans. Payload is the maximum weight a robot can safely carry or manipulate.
5. Why is aluminium commonly used in robotic design?
Ans. Aluminium is lightweight yet strong, making robots efficient without adding excessive weight.
6. Explain the use of omni wheels in mobile robots.

Ans. Omni wheels enable robots to move sideways and diagonally without rotating their body, improving
maneuverability.
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Mechanical System