Types of Robotic Manipulators — MCQs – EE

1. A robotic manipulator is commonly known as the robot’s:
(A) Brain
(B) Arm
(C) Power source
(D) Controller

2. The main function of a robotic manipulator is to:
(A) Move and position objects
(B) Process sensor data
(C) Store programs
(D) Provide power to actuators

3. A Cartesian manipulator provides movement along:
(A) Three perpendicular linear axes (X, Y, Z)
(B) Circular paths
(C) Spherical coordinates
(D) Cylindrical coordinates

4. The workspace of a Cartesian robot is shaped like a:
(A) Rectangle or box
(B) Sphere
(C) Cylinder
(D) Cone

5. A cylindrical manipulator operates within which type of workspace?
(A) Cylindrical
(B) Rectangular
(C) Spherical
(D) Conical

6. The joints of a cylindrical robot provide motion in:
(A) Linear, rotational, and vertical directions
(B) Linear only
(C) Circular only
(D) Horizontal only

7. A spherical (polar) manipulator has a workspace shaped like a:
(A) Sphere
(B) Cylinder
(C) Cube
(D) Prism

8. A SCARA manipulator is most suitable for:
(A) Assembly and pick-and-place tasks
(B) Welding heavy parts
(C) Underwater applications
(D) Painting large surfaces

9. The full form of SCARA is:
(A) Selective Compliance Assembly Robot Arm
(B) Servo Controlled Arm Robot Assembly
(C) Sequential Control Arm Robot Assembly
(D) Static Control Arm Robot Application

10. The SCARA robot is compliant in the:
(A) Horizontal plane
(B) Vertical plane
(C) Both planes
(D) None of the planes

11. An articulated manipulator typically consists of:
(A) Several rotary joints
(B) Only linear joints
(C) Magnetic joints
(D) Rigid links without motion

12. The workspace of an articulated robot is usually:
(A) Irregular or spherical
(B) Rectangular
(C) Cylindrical
(D) Flat

13. The anthropomorphic manipulator is designed to resemble:
(A) A human arm
(B) A spider leg
(C) A mechanical lever
(D) A simple linkage

14. The parallel manipulator structure typically includes:
(A) Multiple arms connected to a common base and end effector
(B) A single long arm
(C) A cylindrical column
(D) A linear slide only

15. The Delta robot is an example of a:
(A) Parallel manipulator
(B) Serial manipulator
(C) Cylindrical robot
(D) Cartesian robot

16. The main advantage of a parallel manipulator is:
(A) High speed and precision
(B) Simplicity of control
(C) Large workspace
(D) Low stiffness

17. A serial manipulator is formed by connecting links:
(A) One after another in series
(B) In parallel
(C) In a closed loop
(D) In a grid pattern

18. The main disadvantage of serial manipulators is:
(A) Accumulation of joint errors
(B) Low flexibility
(C) High cost of materials only
(D) Limited reach

19. A hybrid manipulator combines features of:
(A) Serial and parallel manipulators
(B) Cylindrical and spherical robots
(C) Electric and hydraulic actuators
(D) Manual and automatic systems

20. Redundant manipulators have:
(A) More degrees of freedom than required
(B) Only one joint
(C) Fewer links than joints
(D) No repeatability

21. The main advantage of a redundant manipulator is:
(A) Ability to avoid obstacles and optimize motion
(B) Simplified control
(C) Lower cost
(D) Reduced accuracy

22. The end effector of a manipulator is attached to:
(A) The final link of the arm
(B) The first joint
(C) The controller unit
(D) The actuator

23. A planar manipulator operates in:
(A) A two-dimensional plane
(B) Three-dimensional space
(C) A spherical workspace
(D) A vertical column

24. A spatial manipulator can move:
(A) In three-dimensional space
(B) Only along one axis
(C) Only in circular paths
(D) Only linearly

25. The PUMA robot is an example of an:
(A) Articulated manipulator
(B) Cartesian manipulator
(C) Cylindrical manipulator
(D) SCARA robot

26. The Stanford Arm is an example of a:
(A) Spherical manipulator
(B) Cylindrical manipulator
(C) Cartesian manipulator
(D) SCARA manipulator

27. The main limitation of a Cartesian robot is:
(A) Limited workspace flexibility
(B) High speed
(C) Complex kinematics
(D) Excessive torque

28. Parallel manipulators are commonly used in:
(A) Flight simulators and precision machining
(B) Welding applications
(C) Painting operations
(D) Warehouse automation

29. Serial manipulators are generally used for:
(A) Welding, painting, and assembly
(B) High-speed pick-and-place
(C) 3D printing only
(D) Fluid control systems

30. A cooperative manipulator involves:
(A) Two or more robotic arms working together
(B) One arm moving independently
(C) Manual and automatic control together
(D) A single controller only