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Robotics Viva 2

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Which type of trajectory planning is best suited for robots with complex kinematic structures, where it is difficult to find an analytical solution for joint-space trajectories?

a)

Linear trajectory planning

b)

Cartesian-space trajectory planning

c)

Joint-space trajectory planning with cubic polynomials

d)

Joint-space trajectory planning with fifth-order polynomials

2.

In Cartesian-space trajectory planning, what is the primary advantage of using cubic polynomials for trajectory generation?

a)

Smooth trajectories with continuous velocity and acceleration profiles

b)

Minimized computation and control effort

c)

Faster execution of trajectories

d)

Improved accuracy in reaching the desired end-effector pose

3.

Linear trajectory functions are typically used for:

a)

Generating trajectories with constant velocity in Cartesian space

b)

Producing complex joint-space trajectories for industrial robots

c)

Ensuring smoother joint motion with high-order polynomials

d)

Minimizing the time to reach the desired Cartesian pose

4.

Which trajectory planning approach is most suitable when the primary objective is to minimize energy consumption during robot motion?

a)

Fifth-order polynomial trajectories in joint-space

b)

Linear trajectory functions in Cartesian space

c)

Joint-space trajectory planning with cubic polynomials

d)

Cartesian-space trajectory planning with velocity profiles

5.

Which type of trajectory planning is more suitable for applications requiring precise control over individual joint positions, such as robotic arms in manufacturing?

a)

Cartesian-space trajectory planning with cubic polynomials

b)

Joint-space trajectory planning with linear trajectory functions

c)

Fifth-order polynomial trajectories in joint-space

d)

Cartesian-space trajectory planning with high-order polynomials

6.

In the context of trajectory planning, what does the term "Jerk" refer to?

a)

A sudden change in velocity

b)

The derivative of acceleration

c)

A type of robot joint

d)

The time derivative of position

7.

When using trajectory optimization techniques, which factor is usually considered as a cost function to be minimized?

a)

Joint velocities

b)

Robot's maximum speed

c)

Energy consumption

d)

End-effector orientation

8.
In which of the following operations continuous path motion (CP) is used
a)
Pick and Place
b)
Loading and Unloading
c)
Continuous Welding
d)
All of the above
9.
If a Robot can alter its own trajectory in response to external conditions, it is considered to be
a)
Intelligent
b)
Mobile
c)
Open loop
d)
Non servo
10.
In which of the following operations Point to point motion (PTP) commonly used
a)
Pick and Place
b)
Spray Painting
c)
Continuous Welding
d)
None of the above
11.
The rate at which the trajectory points are computed at run time is called
a)
Spline rate
b)
Path update rate
c)
Via point rate
d)
Trajectory generation rate
12.
A path on which a time law is Specified in terms of velocities and acceleration at each point is called
a)
path
b)
trajectory
c)
via points
d)
spline
13.
What does the process of computing a sequence of position, velocities and acceleration is called?
a)
Kinematics
b)
trajectory planning
c)
Path
d)
spline
14.
Which of the following sensors determine the relationship of the robot and its environment.
a)
Internal State sensors
b)
External State sensors
c)
Both (A) and (B)
d)
None of the above
15.
What type Sensors are used for identify the position, velocity and acceleration of a each joint in a manipulator?
a)
Quality Sensor
b)
Work cell control sensor
c)
Status sensor
d)
Environment sensor