WorksheetsGrade-8 quiz questions
Total questions: 15
Worksheet time: 8mins
Which Arduino pins support PWM output?
resistance
Analog pins only
resolution
Power pins
What may happen if an electrolytic capacitor is connected in reverse polarity?
Nothing
It improves performance
It may overheat or explode
Voltage increases
Which of the following is the correct way to check if x is not between 5 and 10?
if x < 5 or x > 10:
if not 5 < x < 10:
if x > 5 or x < 10:
Both A and B
Python supports:
Only procedural programming
Only object-oriented programming
Only functional programming
Multiple programming paradigms
Which of the following is TRUE about loop efficiency?
Nested loops always run faster than single loops
Using break never affects efficiency
Avoiding unnecessary nested loops improves performance
Loops with many iterations have the same speed as loops with few iterations
In nested loops, which loop executes first?
The outer loop
The inner loop
The inner loop executes completely for each iteration of the outer loop
Both loops execute simultaneously
What do '8' stands for in ATmega 328 microcontroller?
Resistor
Resistance
Resolution
RESET
Which pin on Arduino Uno is connected to the onboard LED?
0
1
13
A0
What is the maximum current that can safely flow through a digital pin of Arduino Uno?
40 mA
20 mA
100 mA
5A
What is the function of the AREF pin?
Provides power to analog sensors
Sets reference voltage for analog inputs
Resets analog pins
Controls digital output
Which of these is used for serial communication with the computer?
Analog pins
TX and RX pins (0 and 1)
Digital pins 2–13
RESET
Which pin is used for connecting external interrupt 0 on Arduino Uno?
Pin 2
Pin 3
Pin 4
Pin 13
What is the role of the crystal oscillator on Arduino Uno?
Powers the board
Controls voltage
Provides clock frequency for timing
Resets pins
What will happen if you connect the GND and 5V pins directly?
LED lights up
Arduino powers normally
Short circuit and possible damage
Nothing happens
What does “T” stand for in STEM?
Tecnology
Tools
Technology
Theory
