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WorksheetsQuad RGB Sensor Quiz Refer to the Book for Term 4 pg1-30
Total questions: 41
Worksheet time: 41mins
What type of light does the QUAD RGB Sensor use to reduce ambient interference?
Infrared light
Ultraviolet light
Laser light
Visible light
Which function is performed by the Quad RGB sensor?
Detect distance to obstacles
Follow colored lines
Play sound
Recognize color and light intensity
Where can you find the Quad RGB sensor extension in mBlock5?
Device settings
Background library
Extension library
Sound effects
What is the detection range of the Quad RGB sensor?
1–5 mm
5–15 mm
10–25 mm
2–10 mm
What does the number “1” represent in the Quad RGB sensor block?
First program step
First sensor connected to CyberPi
Line detection mode
Maximum brightness
In the line follower example, what state value means both L1 and R1 detect a line?
0
1
2
3
Which block gives a state value from 0 to 3 based on detection?
Boolean block
Motion block
Quad RGB (…) L1, R1’s status (0-3)
Wait block
Which LED color corresponds to the value “0” in the extra program example?
Red
Green
Blue
Yellow
Which LED color shows when the value is “3” in the extra program example?
Blue
Red
Green
Yellow
What happens when mBot2 detects the black line in example B (page 5)?
Speeds up
Plays music
Turns
Stops moving
What should be set as the line color during calibration for Lesson 2?
Red
White
Green
Black
What happens when you double-press the button on the sensor?
Change LED color
Start background learning
Start music
Reset program
What if the LEDs blink slowly during calibration?
It means success
Learning failed
Calibration complete
No power
How long does sensor learning take?
1 second
2.5 seconds
5 seconds
10 seconds
What happens when all sensors detect a line?
mBot turns
mBot moves backward
mBot moves forward
mBot stops
What happens if only L1 detects a line?
Turn right
Move forward
Move backward
Turn left
What happens if only R1 detects a line?
Turn right
Turn left
Stop
Move backward
What should mBot do if all sensors detect background?
Move forward
Turn left
Stop or move backward
Turn right
Which block defines a color using RGB values?
RGB set brightness
Quad RGB sensor (…) define color (…)
LED on
RGB sensor status
What happens when mBot detects green in the Lesson 3 exercise?
Stop
Move backward
Move forward with 100% power
Flash LEDs
What is the purpose of the Cliff Sensor lesson?
Play music
Avoid crashing
Detect temperature
Detect drop-offs
What should mBot do when it detects a cliff?
Jump
Stop moving
Move faster
Spin
What sensor is used for cliff detection in Lesson 4?
Ultrasonic
Touch
Color
QUAD RGB
What light behavior indicates a dark surface under the QUAD RGB sensor?
Light is reflected
Light is absorbed
Blinks
Turns blue
In the Cliff Detection exercise, what should mBot do when a cliff is detected on left side?
Move forward
Turn right
Stop
Turn left
What does the Ultrasonic Sensor measure?
Temperature
Line color
Object distance
Sound
Which value shows when the Ultrasonic Sensor detects an object within 10 cm?
0
300
10
100
Which condition must be met for mBot to park in Lesson 5?
Obstacle detected
No line detected
Open space + blank line
Line detected
What does the state value “0” represent for L1 and R1?
L1 line, R1 background
L1 background, R1 line
Both backgrounds
Both lines
Which sensor combination allows a parking decision?
QUAD RGB + Gyroscope
Ultrasonic + QUAD RGB
Sound + RGB
Encoder + Touch
Which lesson introduces the autonomous self-parking system?
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Refer to the image on page 2. What are the four probes labeled on the QUAD RGB sensor?
A1, A2, B1, B2
R1, R2, L1, L2
T1, T2, T3, T4
F1, F2, B1, B2
Refer to the image on page 4. What does the binary number “11” mean in the state value?
Only R1 detects the line
Only L1 detects the line
L1 and R1 detect the background
Both L1 and R1 detect the line
Refer to the extra program on page 5. What LED color is shown when the state value is 2?
Red
Green
Blue
Yellow
Refer to the arena diagram on page 14. What is the width of the black tape used for the track?
1 inch or 2.5 cm
2 inches or 4 cm
0.5 inch or 1 cm
3 inches or 6 cm
Refer to the calibration guide image on page 9. What does it mean when the LEDs blink quickly?
Battery is low
Learning failed
Sensor is overheated
Sensor is learning the surface
Look at the block example on page 13. What does mBot do when both L1 and R1 detect background?
Turn left
Move forward
Move backward or stop
Flash LEDs
Refer to the LED behavior example on page 17. What happens when R1 detects red color?
The LED turns off
LED displays red for 1 second
mBot moves backward
Display shows “Stop”
Look at the RGB sensor diagram on page 18. What are the three measurable color values?
H, S, V
Red, Blue, Green
Black, White, Gray
Cyan, Magenta, Yellow
Look at the obstacle detection figure on page 28. What is the maximum distance the ultrasonic sensor can detect?
150 cm
200 cm
250 cm
300 cm
Refer to the parking diagram on page 29. What does mBot do when it detects a blank line and no obstacle?
Move backward
Turn left
Park in that space
Sound the buzzer
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