
Practice Assessment
Quiz
•
Information Technology (IT)
•
9th - 12th Grade
•
Practice Problem
•
Medium
Jemimah Miguel
Used 5+ times
FREE Resource
Enhance your content in a minute
8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following codes is used to turn off the configured LED colors of Leanbot?
Which of the following codes is used to turn off the configured LED colors of Leanbot?
Answer explanation
LbRGB.clear( ); is used to turn off/clear LED lights shown.
LbRGB.clear( ); is used to turn off/clear LED lights shown.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the best way to set complicated colors like army green?
Which of the following is the best way to set complicated colors like army green?
binary code
hexadecimal value
color name
RGB colors
Answer explanation
A color's hexadecimal value can be searched in the internet. It is used to name complex colors like pastel colors.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many RGB LEDs does a Leanbot have?
8
6
3
7
Answer explanation
Leanbot has 7 RGB LEDs that are labeled as 0,1,2,3,4,5,6 or O,A,B,C,D,E,F.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You want to set 1 RGB LED into red color. Which of the following codes executes your desired outcome?
LbRGB[ledO] = CRGB::Red
LbRGB.fillColor(CRGB::Red);
LbRGB.fillColor(CRGB::Red, BITMAP(ledO,ledA));
LbRGB[1,2,3] = CRGB::Red;
Answer explanation
LbRGB.fillColor is used if you want to set ALL lights into a particular color.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which function allows you to set multiple LED lights into one particular color?
LbDelay
Leanbot.tone
BITMAP
fillColor
Answer explanation
BITMAP is used to set multiple LED lights (not all) into one specified color.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of code is Leanbot.tone?
executing code
blocking code
loop
non-blocking code
Answer explanation
Leanbot.tone is a non-blocking code. It doesn't pause the program but instead, it keeps doing other things at the same time. That's why it need LbDelay.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compile error occurs when there is something wrong with your code.
True
False
Answer explanation
Compile error occurs when there is a mistake in the code that causes the code not to run. Like a misspelled word, wrong capitalization, or a missing semi colon.
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