Applications of Dynamics and Control Quizzes | Mechanical Engineering | BEng

Question 1

What is the distinguishing feature of a mechatronic system compared to a traditional mechanical system?

Accepted Answer

Integration of electronic controls and sensors

Answer

Use of hydraulic actuators

Answer

Enhanced precision and accuracy

Answer

Increased complexity

Question 2

In a control system, what is the primary function of a feedback loop?

Accepted Answer

To regulate the output variable to a desired value

Answer

To amplify the input signal

Answer

To filter out noise and disturbances

Answer

To increase the system stability

Question 3

In a mechatronic system, what is the primary role of a Kalman filter?

Accepted Answer

State estimation and noise reduction

Answer

Actuator control and power management

Answer

Sensor signal conditioning and amplification

Answer

Data acquisition and storage

Question 4

What is the primary function of a PID controller?

Accepted Answer

Error reduction and signal regulation

Answer

Input signal amplification and filtering

Answer

Output signal conditioning and smoothing

Answer

Data logging and analysis

Question 5

In a mechatronic system, what is the purpose of a proportional-integral (PI) controller?

Accepted Answer

To eliminate steady-state error and improve stability

Answer

To reduce overshoot and improve response speed

Answer

To mitigate noise and disturbances

Answer

To increase system gain and bandwidth

Question 6

How do performance metrics aid in choosing the best control system design from several options?

Accepted Answer

Performance metrics offer a quantifiable way to compare designs and select the one that best meets the desired system behavior.

Answer

Performance metrics are used to determine the stability of a control system.

Answer

The choice of performance metrics is arbitrary and has no bearing on overall system performance.

Answer

Performance metrics are only applicable to complex control systems with multiple inputs and outputs.

Question 7

Which sensor type is commonly used in robotics for navigation and obstacle detection?

Accepted Answer

Ultrasonic sensor

Answer

Temperature sensor

Answer

Strain gauge

Answer

Light sensor

Question 8

What is the primary function of a feedback controller in a mechanical system?

Accepted Answer

To reduce system errors by comparing actual and desired outputs

Answer

To increase system gain

Answer

To eliminate external disturbances

Answer

To stabilize unstable systems

Question 9

What is the fundamental principle behind the operation of a hydraulic actuator?

Accepted Answer

Pascal's law

Answer

Newton's laws of motion

Answer

Bernoulli's principle

Answer

Ohm's law

Question 10

Mechatronics systems are characterized by:

Accepted Answer

Integration of mechanical, electrical, and computer systems

Answer

Focus solely on mechanical components

Answer

Emphasis on control theory only

Answer

Limited use of electronics

Question 11

Which of the following is NOT a primary function of an Electronic Control Unit (ECU) in automotive systems?

Accepted Answer

Providing user interface

Answer

Managing engine performance

Answer

Monitoring sensor readings

Answer

Driving actuators

Question 12

Which of the following techniques is commonly used to control the positioning of a robotic arm?

Accepted Answer

PID control

Answer

Fuzzy logic control

Answer

Neural network control

Answer

Genetic algorithm control

Question 13

A characteristic of non-linear systems is that:

Accepted Answer

Their response is not proportional to the input

Answer

Their parameters are time-invariant

Answer

Their output can be predicted using linear equations

Answer

Their behavior is always stable

Question 14

The primary goal of a Kalman filter in the context of control systems is to:

Accepted Answer

Estimate the state of a dynamic system

Answer

Control the system's output

Answer

Optimize the system's performance

Answer

Identify the system's parameters

Question 15

Which control strategy is most commonly used in automotive cruise control systems?

Accepted Answer

Proportional-Integral (PI) control

Answer

State-space control

Answer

Proportional-Differential (PD) control

Answer

Model Predictive Control

Question 16

In a mechatronic system, the primary role of the microprocessor is to:

Accepted Answer

Process data and control actuators

Answer

Provide physical support

Answer

Generate power

Answer

Amplify signals

Question 17

A key challenge in controlling nonlinear systems is:

Accepted Answer

Predicting the system's behavior over its entire operating range

Answer

Calculating the system's transfer function

Answer

Finding the system's eigenvalues

Question 18

The Laplace transform is commonly used in control systems analysis because it:

Accepted Answer

Converts differential equations into algebraic equations

Answer

Simplifies the calculation of system poles and zeros

Answer

Provides a graphical representation of system dynamics

Question 19

In a robotic manipulator with revolute joints, the Denavit-Hartenberg (DH) parameters are used to:

Accepted Answer

Establish a common reference frame and define joint axes

Answer

Determine the inverse kinematics of the manipulator

Answer

Calculate the forward kinematics of the manipulator

Question 20

An example of a state feedback control law is:

Accepted Answer

u(t) = -Kx(t)

Answer

u(t) = -Kp * e(t)

Answer

u(t) = K * e(t) ^ 2

Answer

u(t) = K * e(t) * dt

Question 21

In a mechatronic system, 'sensor fusion' refers to:

Accepted Answer

Combining data from multiple sensors to enhance accuracy

Answer

Filtering noise from sensor data

Answer

Calibrating sensors

Question 22

In automotive systems, adaptive control is often used to compensate for:

Accepted Answer

Changes in vehicle dynamics and environmental conditions

Answer

Actuator nonlinearities

Answer

Sensor failures