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WorksheetsIntro to Control Systems and Sensors
Total questions: 65
Worksheet time: 57mins
The control system shown is also known as a...
In a control system, input devices called (a) feed data into the computer.
Which system is also known as automatic control system?
open loop control system
Closed loop control system
both 1 & 2
None of these
A control system in which the control action is somehow dependent on the output is known as
Open loop system
Semiclosed loop system
Closed loop system
None of the above
In the image what is the letter for the input (usually Qin )
(a)
In the image what is the letter for the output (usually Qout )
(a)
In the image what is the letter for the reference (or setpoint)
(a)
In the image what is the letter for the variable
(a)
In the image what is the letter for the sensor (measuring device)
(a)
In the image what is the letter for the controller
(a)
In the image what is the letter for the Final Control Element
(a)
What is missing from this image to make it a "Closed Loop" or "Automated Control System". Check all that apply
A Sensor
A Controller
A Final Control Element
A Setpoint
An Input
What is missing from this image to make it a "Closed Loop" or "Automated Control System". Check all that apply
A Sensor
A Controller
A Final Control Element
A Setpoint
An Input
The Robot behavior doesn’t depend on the information getting from the sensors in open loop control.
True
False
In open loop system____
the control action depends on the size of the system
the control action depends on system variables
the control action depends on the input signal
the control action is independent of the output
Benefits of feedback:
Performance of system is normal.
Need for system much larger path gain and system instability.
Controlled variable accurately follows the desired value
Affected by parameter variations
Choose advantages of open loop control system.
Costly
Simple to design
Hard to design
Which among the following represents an illustration of closed loop system?
Automatic washing machine
Fire place with a fire making a house warmer.
Thermostat keeping a house at a constant temperature.
Electric hair drier
Cruise control in a car controlling the speed.
Open System
Closed System
Gas pedal in a car controlling the speed.
Open System
Closed System
Turning on a light with a light switch.
Open System
Closed System
Car headlights automatically turning on when its dark outside.
Open System
Closed System
Give TWO components in open loop control system
Controller & system
Sensor & system
System & Feedback
Which type of sensor is commonly used in robots to detect obstacles?
Pressure sensor
Humidity sensor
Temperature sensor
Ultrasonic sensor
What is the main function of a tactile sensor in a robotic system?
Measure distance
Detect touch or pressure
Sense light intensity
Monitor temperature
Which sensor would a robot use to follow a line on the ground?
Infrared sensor
Gas sensor
Gyroscope
Magnetic sensor
What is this called?
Line Follower
Motor Controller
Bumper Switch
LED Light
These line followers best compare to which human sense?
Visual
Auditory
Olfactory
Tactile
Taste
What is this called?
Line Follower
Motor Controller
Bumper Switch
LED Light
Is this sensor digital or analog?
Digital
Analog
Is this sensor digital or analog?
Digital
Analog
Is this sensor digital or analog?
Digital
Analog
What's this sense called?
Hearing
Vision
Touch
What's this sense called?
Olfactory
Auditory
Sight
Tactile
Earology
What's this sense called?
Auditory
Olfactory
Tactile
Origami
Smellometry
What's this sense called?
Taste
Touch
Smell
Sight
What's this sense called?
Auditory
Sight
Tactile
Vestibular
Olfactory
What is the name of this sensor?
Infrared
Gyroscopic
Ultrasonic
Touch
Why do we use Robots?
Robots are cheaper than humans in the long term
Robots can do repetitive tasks that are boring for humans
Robots can do tasks that are unsafe for humans
All of the above
What is a sensor?
A martial arts instructor
A survey that gives governments information about their population
A device that allows a machine to detect changes in its environment
An Empathetic person
Why do we use sensors?
They allow manufactures to charge more for robots
They allow robots to interact with the real world
They look pretty
They make robots intelligent
How dose a robot with a touch sensor know its touching something?
The pressure on the touch sensor closes the circuit making it send a 1 back to the robot
The pressure on the touch sensor closes the circuit making it send a 0 back to the robot
The pressure on the touch sensor opens the circuit making it send a 1 back to the robot
The pressure on the touch sensor closes the circuit making it send a 0 back to the robot
The value range associated with the limit switch is?
-127 to 127
0 to 127
-1 to 1
0 or 1
What are some of the challenges a self-driving car must overcome?
Finding a path to the destination
Following the road
Obeying traffic laws and signals
Avoiding other vehicles
All of the above
Why would a self-driving car need a Color Sensor (mark all that apply)?
Color of traffic lights/signs
Color of lines on the road
Colors of other cars
Colors of Emergency Lights
Color of the road
Where might a Humidity sensor be used?
A Shop
A Green House
A Car
A Mobile Phone
Which sensor measures weight?
Light Sensor
Pressure Sensor
Motion Sensor
Proximity Sensor
What is an algorithm?
A list of unordered steps.
A computer program to create apps.
A set of instructions to solve a problem.
An act a computer does to perform calcualtions.
Yes
19
In this flowchart the only conclusion you can reach is
that you are not a horse
that you can read and write
that you walk on four legs
that you walk on two legs
This flowchart has a major flaw. It is
Not using diamonds for decisions
Asking too many questions
Being illegible for horses
Helping people who think they are horses realise they are not
What is most likely causing these errors?
Missing semicolons
Wrong platform type
Wrong communication mode
Forgot to setup your motors
What do these lines of code do?
motors for ports 2 and 5 half power in reverse, motors for ports 3 and 4 half power
motors for ports 3 and 4 full power in reverse, motors for ports 2 and 5 full power
motors for ports 2 and 5 half power in reverse, motors for ports 3 and 4 half power
motors for ports 2 and 5 full power in reverse, motors for ports 3 and 4 full power
What symbol shows action?
Which symbol shows output?
