21.keypad calculator
Authored by Robotic Schools
Special Education
6th - 8th Grade
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a keypad calculator?
A calculator that uses a touch screen interface
A calculator that uses a keyboard interface
A calculator that uses voice recognition
A calculator that uses a pen interface
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we need to use keypad library in an Arduino keypad calculator?
To perform mathematical operations
To display the output on an LCD screen
To read input from the keypad
To connect to the internet
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is input from a keypad stored in an Arduino sketch?
As a string
As an integer
As a floating-point number
As a character array
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many rows and columns are typically used in a standard 4x4 keypad?
4 rows and 4 columns
3 rows and 4 columns
4 rows and 3 columns
3 rows and 3 columns
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many charecters can you see on the keypad ?
12
10
16
14
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the use of the lcd display in an Arduino keypad calculator?
To perform mathematical operations
To display the Characters on an LCD screen
To read input from the keypad
To connect to the internet
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
can we perform division operation using keypad calculator?
YES
NO
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