NPTEL Robotics Week 1 Assignment Answers 2024

1. Who did introduce the Czech word “Robota”, which means Robot?
a) Isaac Asimov
b) Karel Capek
c) Joseph Engelberger
d) George Devol

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2. Who did introduce the term “Robotics”?
a) Isaac Asimov
b) Karel Capek
c) George Devol
d) Joseph Engelberger

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3. Cylindrical Joint (C)
a) is a pure Linear Joint with one degree of freedom (dof).
b) is a pure Rotary Joint with one degree of freedom (dof).
c) provides a combination of Linear and Rotary motions with two dofs.
d) provides three dofs.

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4. Ball and Socket Joint or Spherical Joint has
a) 1 degree of freedom (dof)
b) 2 dofs
c) 3 dofs
d) 4 dofs

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4. Ball and Socket Joint or Spherical Joint has
a) 1 degree of freedom (dof)
b) 2 dofs
c) 3 dofs
d) 4 dofs

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5. Which one of the following statements is CORRECT?
a) Both Revolute Joint and Twisting Joint are linear in nature, and these are the same.
b) Both Revolute Joint and Twisting Joint are linear in nature, and these are different by their definitions.
c) Both Revolute Joint and Twisting Joint are rotary in nature, and these are the same.
d) Both Revolute Joint and Twisting Joint are rotary in nature, and these are different by their definitions.

Answer :-

6. By definition, an ideal Planar Manipulator has got
a) 1 dof
b) 2 dof
c) 3 dof
d) 4 dof

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7. Which one of the following statements is TRUE?
a) Degree of freedom (dof)/Mobility of a Serial Manipulator becomes equal to the summation of connectivity values of its joints.
b) Degree of freedom (dof)/Mobility of a Parallel Manipulator becomes equal to the summation of connectivity values of its joints.
c) Load carrying capacity of a Serial Manipulator is more than that of a Parallel Manipulator.
d) Both the Serial Manipulator and Parallel Manipulator consisting of the same number of similar joints have exactly the same load carrying capacity.

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8. Shakey, an intelligent mobile robot with vision capability and sensors, was built by?
a) Stanford Research Institute (SRI)
b) Honda
d) Cincinnati Milacron Corporation
d) Unimation Corporation

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9. The Workspace of a Spherical Coordinate Robot
a) is a Cuboid.
b) is a Cylindrical Annular Space.
c) is the volume swept between two partial Spheres.
d) None of the above

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10. Which one of the following statements is TRUE?
a) Both Servo-controlled and Non-servo-controlled Robots use an Open-loop Control System.
b) Both Servo-controlled and Non-servo-controlled Robots use a Closed-loop Control System.
c) Servo-controlled Robot and Non-servo-controlled Robot have Closed-loop and Open-loop Control Systems, respectively.
d) Servo-controlled Robot and Non-servo-controlled Robot have Open-loop and Closed-loop Control Systems, respectively.

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