MCQs of ,

2.6 Troubleshooting

5 MCQs

1. If the "ON" LED on the Arduino board is not lighting up, the problem is likely:

Bad code

No power (USB disconnected)

Broken Buzzer

Wrong resistor

2. If your upload fails with "Error uploading to board," you should check:

If the LED is backward

If the correct Board and Port are selected in Tools

If the room is too dark

If the wires are straight

3. If a component smells burnt or gets very hot, you should:

Pour water on it

Immediately disconnect power/USB

Blow on it

Keep using it

4. If an LED is not blinking, a common physical mistake is:

Using a blue wire instead of red

Putting the LED in backward (Anode/Cathode swapped)

Using a computer with Windows 10

It is Tuesday

5. A "Short Circuit" happens when:

Wires touch each other accidentally bypassing the component

The code is too short

The USB cable is too short

You use a small battery

2.3 Breadboards & Wires

4 MCQs

1. Which wire type is flexible but harder to push into breadboard holes?

Solid-Core

Stranded

Steel

Fiber optic

2. Which type of jumper wire is best for connecting two points on the same breadboard?

Male-to-Female

Female-to-Female

Male-to-Male

USB cable

3. What is a Breadboard used for?

Cutting vegetables

Building temporary circuits without soldering

Permanent welding

Playing games

4. Male-to-Female wires are typically used to connect:

Arduino to a sensor with pins

Resistor to LED

Two breadboards

USB to Computer

2.1 ntroduction to Arduino & Microcontrollers

6 MCQs

1. The Arduino Uno is widely used in:

Word processing

Robotics, home automation, and smart devices

Graphic design

Web hosting

2. The specific microcontroller board discussed in this chapter is the:

Arduino Mega

Arduino Nano

Arduino Uno

Raspberry Pi

3. Arduino is best described as a:

Large personal computer

Powerful yet easy-to-use microcontroller platform

Type of software virus

Heavy industrial machine

4. Which of the following pins are found on an Arduino Uno board?

Digital and Analog pins

Power pins (5V, 3.3V, GND)

A USB port

All of the above

5. Arduino started as a project for which group of people?

NASA engineers

Students

Military

Doctors

6. The port used to connect the Arduino to a computer for programming is:

HDMI

VGA

USB

Ethernet

2.4 Arduino IDE & Programming

8 MCQs

1. Which command configures a pin as an input or output?

digitalWrite()

pinMode()

delay()

setup()

2. `digitalWrite(13, HIGH);` will:

Turn pin 13 OFF (0V)

Turn pin 13 ON (5V)

Wait for 13 seconds

Read data from pin 13

3. The function `void setup()` runs:

Continuously

Twice

Only once when the Arduino starts

Whenever a button is pressed

4. Arduino IDE stands for:

Arduino International Design Environment

Arduino Integrated Development Environment

Arduino Internet Data Entry

Arduino Internal Device Error

5. The function `void loop()` runs:

Once

Over and over continuously

Only when powered off

Only on Tuesdays

6. `delay(1000);` pauses the program for:

1 second

1000 seconds

1 minute

0.1 seconds

7. If the computer cannot find the Arduino, you should check:

Tools > Board

Tools > Port

The USB connection

All of the above

8. To verify your code for errors, you click the:

Right Arrow (Upload)

Tick Mark (Verify)

Magnifying Glass

Stop Button

2.5 Projects (Blinking LED, Traffic Light, Sensors)

8 MCQs

1. Which pin of the HC-SR04 sensor sends out the sound wave?

Echo

Trig (Trigger)

GND

VCC

2. The HC-SR04 sensor uses which technology to measure distance?

Laser

Infrared

Ultrasonic sound waves

X-rays

3. In the Basic Circuit with an LED, the resistor connects to:

The Anode and 5V

The Cathode and Ground (GND)

The USB port

Another LED

4. In the Traffic Light project, the Green LED connects to Arduino pin:

5. Which pin of the HC-SR04 sensor receives the reflected wave?

Echo

Trig

GND

VCC

6. What is the speed of sound used in the distance calculation formula?

0.034 cm/µs

340 m/s

100 km/h

Both a and b

7. Animals that use echolocation similar to the ultrasonic sensor are:

Cats

Bats

Fish

Birds

8. To view the distance measured by the sensor on the computer screen, we use:

Paint

Serial Monitor

Microsoft Word

Calculator

2.2 Electronic Components (LEDs, Resistors, Buzzers)

17 MCQs

1. The longer leg of an LED is called the:

Cathode (-)

Anode (+)

Resistor

Ground

2. The shorter leg of an LED is called the:

Cathode (-)

Anode (+)

Power

Switch

3. LED stands for:

Light Energy Device

Light Emitting Diode

Low Energy Diode

Long Electric Device

4. To protect an LED from burning out, you must connect a:

Capacitor

Resistor

Transistor

Switch

5. Common diameters for LEDs include:

1cm, 2cm

3mm, 5mm, 8mm, 10mm

10 inches

5 meters

6. Which type of buzzer has a built-in oscillator and needs only a HIGH signal?

Passive Buzzer

Active Buzzer

Silent Buzzer

Analog Buzzer

7. A buzzer produces sound when:

It is cooled down

An electric current is applied to it

It is placed in the dark

It is disconnected

8. A Passive Buzzer requires which type of signal to make sound?

Simple DC voltage

A changing frequency signal (PWM)

A constant HIGH signal

No signal

9. Resistance is measured in:

Volts

Amperes

Ohms (Ω)

Watts

10. In the resistor color code, what does the first band represent?

Tolerance

Multiplier

First digit

Temperature

11. What is the resistance of a resistor with bands: Brown, Black, Red, Gold?

100 Ω

220 Ω

1,000 Ω (1 kΩ)

10,000 Ω

12. Which color represents the number 2 in resistor coding?

Brown

Red

Orange

Yellow

13. The color Gold in the fourth band indicates a tolerance of:

±1%

±5%

±10%

±20%

14. The longer leg of an LED is called the:

Cathode (-)

Anode (+)

Resistor

Ground

15. The shorter leg of an LED is called the:

Cathode (-)

Anode (+)

Power

Switch

16. To protect an LED from burning out, you must connect a:

Capacitor

Resistor

Transistor

Switch

17. Which type of buzzer has a built-in oscillator and needs only a HIGH signal?

Passive Buzzer

Active Buzzer

Silent Buzzer

Analog Buzzer

Exercise

0 MCQs

No MCQs available for this section.

MCQs of ,

2.6 Troubleshooting

5 MCQs

1. If the "ON" LED on the Arduino board is not lighting up, the problem is likely:

Bad code

No power (USB disconnected)

Broken Buzzer

Wrong resistor

2. If your upload fails with "Error uploading to board," you should check:

If the LED is backward

If the correct Board and Port are selected in Tools

If the room is too dark

If the wires are straight

3. If a component smells burnt or gets very hot, you should:

Pour water on it

Immediately disconnect power/USB

Blow on it

Keep using it

4. If an LED is not blinking, a common physical mistake is:

Using a blue wire instead of red

Putting the LED in backward (Anode/Cathode swapped)

Using a computer with Windows 10

It is Tuesday

5. A "Short Circuit" happens when:

Wires touch each other accidentally bypassing the component

The code is too short

The USB cable is too short

You use a small battery

2.3 Breadboards & Wires

4 MCQs

1. Which wire type is flexible but harder to push into breadboard holes?

Solid-Core

Stranded

Steel

Fiber optic

2. Which type of jumper wire is best for connecting two points on the same breadboard?

Male-to-Female

Female-to-Female

Male-to-Male

USB cable

3. What is a Breadboard used for?

Cutting vegetables

Building temporary circuits without soldering

Permanent welding

Playing games

4. Male-to-Female wires are typically used to connect:

Arduino to a sensor with pins

Resistor to LED

Two breadboards

USB to Computer

2.1 ntroduction to Arduino & Microcontrollers

6 MCQs

1. The Arduino Uno is widely used in:

Word processing

Robotics, home automation, and smart devices

Graphic design

Web hosting

2. The specific microcontroller board discussed in this chapter is the:

Arduino Mega

Arduino Nano

Arduino Uno

Raspberry Pi

3. Arduino is best described as a:

Large personal computer

Powerful yet easy-to-use microcontroller platform

Type of software virus

Heavy industrial machine

4. Which of the following pins are found on an Arduino Uno board?

Digital and Analog pins

Power pins (5V, 3.3V, GND)

A USB port

All of the above

5. Arduino started as a project for which group of people?

NASA engineers

Students

Military

Doctors

6. The port used to connect the Arduino to a computer for programming is:

HDMI

VGA

USB

Ethernet

2.4 Arduino IDE & Programming

8 MCQs

1. Which command configures a pin as an input or output?

digitalWrite()

pinMode()

delay()

setup()

2. `digitalWrite(13, HIGH);` will:

Turn pin 13 OFF (0V)

Turn pin 13 ON (5V)

Wait for 13 seconds

Read data from pin 13

3. The function `void setup()` runs:

Continuously

Twice

Only once when the Arduino starts

Whenever a button is pressed

4. Arduino IDE stands for:

Arduino International Design Environment

Arduino Integrated Development Environment

Arduino Internet Data Entry

Arduino Internal Device Error

5. The function `void loop()` runs:

Once

Over and over continuously

Only when powered off

Only on Tuesdays

6. `delay(1000);` pauses the program for:

1 second

1000 seconds

1 minute

0.1 seconds

7. If the computer cannot find the Arduino, you should check:

Tools > Board

Tools > Port

The USB connection

All of the above

8. To verify your code for errors, you click the:

Right Arrow (Upload)

Tick Mark (Verify)

Magnifying Glass

Stop Button

2.5 Projects (Blinking LED, Traffic Light, Sensors)

8 MCQs

1. Which pin of the HC-SR04 sensor sends out the sound wave?

Echo

Trig (Trigger)

GND

VCC

2. The HC-SR04 sensor uses which technology to measure distance?

Laser

Infrared

Ultrasonic sound waves

X-rays

3. In the Basic Circuit with an LED, the resistor connects to:

The Anode and 5V

The Cathode and Ground (GND)

The USB port

Another LED

4. In the Traffic Light project, the Green LED connects to Arduino pin:

5. Which pin of the HC-SR04 sensor receives the reflected wave?

Echo

Trig

GND

VCC

6. What is the speed of sound used in the distance calculation formula?

0.034 cm/µs

340 m/s

100 km/h

Both a and b

7. Animals that use echolocation similar to the ultrasonic sensor are:

Cats

Bats

Fish

Birds

8. To view the distance measured by the sensor on the computer screen, we use:

Paint

Serial Monitor

Microsoft Word

Calculator

2.2 Electronic Components (LEDs, Resistors, Buzzers)

17 MCQs

1. The longer leg of an LED is called the:

Cathode (-)

Anode (+)

Resistor

Ground

2. The shorter leg of an LED is called the:

Cathode (-)

Anode (+)

Power

Switch

3. LED stands for:

Light Energy Device

Light Emitting Diode

Low Energy Diode

Long Electric Device

4. To protect an LED from burning out, you must connect a:

Capacitor

Resistor

Transistor

Switch

5. Common diameters for LEDs include:

1cm, 2cm

3mm, 5mm, 8mm, 10mm

10 inches

5 meters

6. Which type of buzzer has a built-in oscillator and needs only a HIGH signal?

Passive Buzzer

Active Buzzer

Silent Buzzer

Analog Buzzer

7. A buzzer produces sound when:

It is cooled down

An electric current is applied to it

It is placed in the dark

It is disconnected

8. A Passive Buzzer requires which type of signal to make sound?

Simple DC voltage

A changing frequency signal (PWM)

A constant HIGH signal

No signal

9. Resistance is measured in:

Volts

Amperes

Ohms (Ω)

Watts

10. In the resistor color code, what does the first band represent?

Tolerance

Multiplier

First digit

Temperature

11. What is the resistance of a resistor with bands: Brown, Black, Red, Gold?

100 Ω

220 Ω

1,000 Ω (1 kΩ)

10,000 Ω

12. Which color represents the number 2 in resistor coding?

Brown

Red

Orange

Yellow

13. The color Gold in the fourth band indicates a tolerance of:

±1%

±5%

±10%

±20%

14. The longer leg of an LED is called the:

Cathode (-)

Anode (+)

Resistor

Ground

15. The shorter leg of an LED is called the:

Cathode (-)

Anode (+)

Power

Switch

16. To protect an LED from burning out, you must connect a:

Capacitor

Resistor

Transistor

Switch

17. Which type of buzzer has a built-in oscillator and needs only a HIGH signal?

Passive Buzzer

Active Buzzer

Silent Buzzer

Analog Buzzer

Exercise

0 MCQs

No MCQs available for this section.

MCQs of ,

2.6 Troubleshooting

1. If the "ON" LED on the Arduino board is not lighting up, the problem is likely:

2. If your upload fails with "Error uploading to board," you should check:

3. If a component smells burnt or gets very hot, you should:

4. If an LED is not blinking, a common physical mistake is:

5. A "Short Circuit" happens when:

2.3 Breadboards & Wires

1. Which wire type is flexible but harder to push into breadboard holes?

2. Which type of jumper wire is best for connecting two points on the same breadboard?

3. What is a Breadboard used for?

4. Male-to-Female wires are typically used to connect:

2.1 ntroduction to Arduino & Microcontrollers

1. The Arduino Uno is widely used in:

2. The specific microcontroller board discussed in this chapter is the:

3. Arduino is best described as a:

4. Which of the following pins are found on an Arduino Uno board?

5. Arduino started as a project for which group of people?

6. The port used to connect the Arduino to a computer for programming is:

2.4 Arduino IDE & Programming

1. Which command configures a pin as an input or output?

2. digitalWrite(13, HIGH); will:

3. The function void setup() runs:

4. Arduino IDE stands for:

5. The function void loop() runs:

6. delay(1000); pauses the program for:

7. If the computer cannot find the Arduino, you should check:

8. To verify your code for errors, you click the:

2.5 Projects (Blinking LED, Traffic Light, Sensors)

1. Which pin of the HC-SR04 sensor sends out the sound wave?

2. The HC-SR04 sensor uses which technology to measure distance?

3. In the Basic Circuit with an LED, the resistor connects to:

4. In the Traffic Light project, the Green LED connects to Arduino pin:

5. Which pin of the HC-SR04 sensor receives the reflected wave?

6. What is the speed of sound used in the distance calculation formula?

7. Animals that use echolocation similar to the ultrasonic sensor are:

8. To view the distance measured by the sensor on the computer screen, we use:

2.2 Electronic Components (LEDs, Resistors, Buzzers)

1. The longer leg of an LED is called the:

2. The shorter leg of an LED is called the:

3. LED stands for:

4. To protect an LED from burning out, you must connect a:

5. Common diameters for LEDs include:

6. Which type of buzzer has a built-in oscillator and needs only a HIGH signal?

7. A buzzer produces sound when:

8. A Passive Buzzer requires which type of signal to make sound?

9. Resistance is measured in:

10. In the resistor color code, what does the first band represent?

11. What is the resistance of a resistor with bands: Brown, Black, Red, Gold?

12. Which color represents the number 2 in resistor coding?

13. The color Gold in the fourth band indicates a tolerance of:

14. The longer leg of an LED is called the:

15. The shorter leg of an LED is called the:

16. To protect an LED from burning out, you must connect a:

17. Which type of buzzer has a built-in oscillator and needs only a HIGH signal?

Exercise

MCQs of ,

2.6 Troubleshooting

1. If the "ON" LED on the Arduino board is not lighting up, the problem is likely:

2. If your upload fails with "Error uploading to board," you should check:

3. If a component smells burnt or gets very hot, you should:

4. If an LED is not blinking, a common physical mistake is:

5. A "Short Circuit" happens when:

2.3 Breadboards & Wires

1. Which wire type is flexible but harder to push into breadboard holes?

2. Which type of jumper wire is best for connecting two points on the same breadboard?

3. What is a Breadboard used for?

4. Male-to-Female wires are typically used to connect:

2.1 ntroduction to Arduino & Microcontrollers

1. The Arduino Uno is widely used in:

2. The specific microcontroller board discussed in this chapter is the:

3. Arduino is best described as a:

4. Which of the following pins are found on an Arduino Uno board?

5. Arduino started as a project for which group of people?

6. The port used to connect the Arduino to a computer for programming is:

2.4 Arduino IDE & Programming

1. Which command configures a pin as an input or output?

2. digitalWrite(13, HIGH); will:

3. The function void setup() runs:

4. Arduino IDE stands for:

2. `digitalWrite(13, HIGH);` will:

3. The function `void setup()` runs:

5. The function `void loop()` runs:

6. `delay(1000);` pauses the program for:

2. `digitalWrite(13, HIGH);` will:

3. The function `void setup()` runs:

5. The function `void loop()` runs:

6. `delay(1000);` pauses the program for: