National Level E-Quiz on Industrial Robotics - Support Systems

Quiz on Industrial Robotics - Support Systems

Q1) Robot dynamics deals with the determination of 

a. workspace of the manipulator

b. stability of the manipulator

c. singularity of the manipulator

d. power rating of the joint motors

 Answer:  d. power rating of the joint motors

 

Q2) Coriolis force occurs, whenever 

a. a link slides through a joint

b. a link rotates about a joint

c. a rotary link contains a sliding component

d. a joint is subjected to a concentrated moment

 Answer:  c. a rotary link contains a sliding component

 

Q3) In an absolute optical encoder, the number of photo-detectors to be used becomes 

a. equal to the number of concentric rings (tracks) used

b. independent of the number of concentric rings (tracks) used

c. more than the number of concentric rings (tracks) used

d. less than the number of concentric rings (tracks) used

Answer:  a. equal to the number of concentric rings (tracks) used

 

Q4) Inductive sensor works for 

a. Carbon steels

b. Stainless steels

c. Rubber

d. Plastics

Answer:  a. Carbon steels

 

Q5) Hall-Effect sensor is 

a. suitable for magnetic materials only.

b. a range sensor.

c. an internal sensor.

d. a contact sensor.

Answer:  a. suitable for magnetic materials only.

 

Q6) Which one of the following is not a contact sensor? 

a. Force/Moment sensor

b. Micro-switch

c. Limit switch

d. Proximity sensor

Answer:  a. Force/Moment sensor

 

Q7) Which one of the following statements is FALSE? 

a. Linearity of a sensor is nothing but its constant sensitivity

b. Accuracy of a sensor is nothing but its repeatability

c. Accuracy of a sensor is different from its repeatability

d. Resolution of a sensor always takes a positive value

Answer:  b. Accuracy of a sensor is nothing but its repeatability

 

Q8) In computer vision, the purpose of using thresholding is to

a. store image as an array of pixels

b. convert analog information of light intensity into digital form

c. remove noise from the image

d. obtain a distinction between the object and background

 Answer:  d. obtain a distinction between the object and background

 

Q9) Robot’s motion planning problem 

a. is nothing but its trajectory planning problem.

b. aims to decide collision-free path for the robot.

c. aims to ensure smooth variation at the robotic joint.

d. aims to ensure dynamic balance of the robot.

 Answer:  a. is nothing but its trajectory planning problem.

 

Q10) In Tangent Graph technique used for solving the find-path problem, the collision-free path for the robot is a combination of 

a. external tangents between the circles and circular arcs

b. internal tangents between the circles and circular arcs

c. circular arcs only

d. either internal or external tangents between the circles and circular arcs

 Answer:  d. either internal or external tangents between the circles and circular arcs

 

Q11) Navigation and Manipulation problems are related to 

a. Manipulator and Mobile robot, respectively

b. Mobile robot and Manipulator, respectively

c. Manipulator only

d. Mobile robot only

 Answer:  b. Mobile robot and Manipulator, respectively

 

Q12) An intelligent robot should have 

a. adaptive controller only

b. adaptive motion planner only

c. adaptive motion planner but not adaptive controller

d. both adaptive motion planner as well as adaptive controller

 Answer:  c. adaptive motion planner but not adaptive controller

 

Q13) Which one of the following statements is FALSE regarding Potential Field Approach? 

a. It is suitable for determining collision-free path for a robot navigating among some moving obstacles.

b. Its performance is independent of the chosen potential function.

c. There is a chance of this approach to get trapped into the local minimum problem particularly for a concave obstacle.

d. The robot may suffer from some oscillatory motions by using this approach.

 Answer:  b. Its performance is independent of the chosen potential function.

 

Q14) During single support phase of a biped robot, its Zero Moment Point (ZMP) is 

a. nothing but its centre of pressure point

b. nothing but its mass centre

c. nothing but a point about which the sum of all moments becomes equal to zero

d. a point that has no role to play in carrying out dynamic balance analysis of a biped robot

 Answer:  c. nothing but a point about which the sum of all moments becomes equal to zero

 

Q15) Which one of the following motion planning approaches cannot find collision-free path for a robot moving among dynamic obstacles? 

a. Incremental planning

b. Potential Field approach

c. Reactive control strategy

d. Visibility Graph

 Answer:  d. Visibility Graph

 

Q16) A Potential Field approach can be used to solve 

a. Find-path problems only in robotics

b. Dynamic motion planning problems only in robotics

c. Both find-path and dynamic motion planning problems in robotics

d. Neither find-path nor dynamic motion planning problem in robotics

 Answer:  c. Both find-path and dynamic motion planning problems in robotics

 

Q17) The decoded value corresponding to the binary number 101011 is equal to 

43

44

41

42

 Answer:  43

 

Q18) Which one of the following statements is TRUE? 

a. Reachable workspace of a manipulator is a subset of its dextrous workspace

b. Dextrous workspace of a manipulator is a subset of its reachable workspace

c. No relationship exists between dextrous and reachable workspaces

d. Summation of dextrous and reachable workspaces of a manipulator gives rise to its total workspace

 Answer:  b. Dextrous workspace of a manipulator is a subset of its reachable workspace

 

Q19) Robot simulator is used for 

a. manual teaching

b. lead-through teaching

c. off-line teaching g

d. robot programmin

 Answer:  b. lead-through teaching

 

Q20) In soft gripper used in robots, there is 

a. point contact between the finger and object

b. line contact between the finger and object

c. area contact between the finger and object

d. no contact between the finger and object

Answer:  c. area contact between the finger and object