Robotics Week 2 NPTEL Assignment Answers 2025
NPTEL Robotics Week 2 Assignment Answers 2025
1. A robotic gripper is called an active gripper, if
a. it is equipped with sensor(s).
b. it is not equipped with sensor(s).
c. it is not equipped with an actuator.
d. it is not equipped with gripping fingers.
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2. A soft gripper has the following type of contact between its finger(s) and an object:
a. Point contact
b. Area contact
c. Neither point nor area contact
d. Both the point and area contacts
Answer :
3. To grip thin steel plates, which one of the following grippers is recommended?
a. Gripper using swing-block mechanism
b. Gripper with cam actuation
c. Gripper with rotary actuation
d. Vacuum gripper
Answer :
4. Magnetic gripper will be able to grip the
a. objects made of various steels except stainless steel.
b. objects made of stainless steel only.
c. objects made of neither ordinary steels nor stainless steel.
d. objects made of both ordinary steels and stainless steel.
Answer :
5. To solve the task related to robotic insertion of a peg into the hole, which one of the following grippers can be used?
a. Passive gripper
b. Magnetic gripper
c. Vacuum gripper
d. Adhesive gripper
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6. Which one of the following statements is true?
a. Resolution, Accuracy and Repeatability of a robot are the same thing.
b. Resolution and Accuracy of a robot are the same thing but Repeatability is different from the others.
c. Accuracy and Repeatability of a robot are the same thing but Resolution is different from the others.
d. Resolution, Accuracy and Repeatability of a robot are not exactly the same thing.
Answer :
7. Robot Simulator is
a. a simulation package developed based of software.
b. a physical robot, which is kinematically equivalent to the main robot to be taught.
c. used for off-line teaching.
d. nothing but a teach-pendant
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8. To carry out economic analysis, rate of return on investment is calculated as the
a. ratio of capital investment to net savings after the payment of tax.
b. ratio of net savings after the payment of tax to capital investment.
c. summation of net savings after the payment of tax and capital investment.
d. multiplication of net savings after the payment of tax and capital investment.
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9. To represent orientation/rotation of a 3-D object in 3-D space, we need
a. 3×3 matrix
b. 4×4 matrix
c. 5×5 matrix
d. 6×6 matrix
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10. Techno-economical life of a robot is defined as the
a. summation of its technical life and economical life.
b. multiplication of its technical life and economical life.
c. Union of its technical life and economical life.
d. Intersection of its technical life and economical life.
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