Important Notice:
|| CCC Result Nov 2025 ||     || CCC Marksheet Aug 2025 ||     || O Level Jul 2026 Reg. Form Last Date: 30/04/2026 ||     || CCC Mar 2026 Exam Postponed ||     || CCC/ O Level Exam Full Form ||     || CCC Result Nov 2025 ||     || CCC Marksheet Aug 2025 ||     || O Level Jul 2026 Reg. Form Last Date: 30/04/2026 ||     || CCC Mar 2026 Exam Postponed ||     || CCC/ O Level Exam Full Form ||    
O LevelNotes
Follow us:

M4-R5.1 Practical Paper — Set 1

25 Questions M4-R5.1

NIELIT O Level M4 IoT Practical exam questions.

1
In Arduino, analogRead() reads values from?
1 Mark
  • A Digital pins
  • B Analog pins (0-1023)
  • C Serial port
  • D Memory
2
Which function in Arduino sets pin direction?
1 Mark
  • A setPin()
  • B pinMode()
  • C initPin()
  • D configPin()
3
Tinkercad is used for?
1 Mark
  • A Code deployment
  • B Online circuit simulation
  • C Cloud storage
  • D IoT dashboard
4
Serial.begin(9600) in Arduino sets the?
1 Mark
  • A PWM frequency
  • B Baud rate for serial communication
  • C Clock speed
  • D Sensor sensitivity
5
A relay in IoT is used to?
1 Mark
  • A Measure temperature
  • B Switch AC appliances using low DC signal
  • C Connect to Wi-Fi
  • D Display data
6
NodeMCU (ESP8266) has built-in?
1 Mark
  • A Bluetooth only
  • B Wi-Fi
  • C GPS
  • D 4G modem
7
Blynk app is used for?
1 Mark
  • A Arduino IDE alternative
  • B Mobile dashboard for IoT projects
  • C PCB design
  • D Sensor calibration
8
Which topology is most fault-tolerant?
1 Mark
  • A Bus
  • B Ring
  • C Star
  • D Mesh
9
Node-RED is a?
1 Mark
  • A Text-based IDE
  • B Visual flow-based IoT programming tool
  • C Database for sensors
  • D IoT security tool
10
digitalWrite(pin, HIGH) sets voltage to?
1 Mark
  • A 0V
  • B 5V (HIGH)
  • C 3.3V (LOW)
  • D 12V
11
Arduino digitalRead() returns?
1 Mark
  • A Analog value
  • B HIGH or LOW
  • C String
  • D Array
12
Arduino digitalWrite(pin, HIGH) does?
1 Mark
  • A Reads pin
  • B Sets pin to HIGH/ON
  • C Deletes pin
  • D Creates pin
13
delay(1000) in Arduino delays for?
1 Mark
  • A 1 second (1000ms)
  • B 10 seconds
  • C 100ms
  • D 1 minute
14
ThingSpeak API sends data using?
1 Mark
  • A Email
  • B HTTP GET/POST requests
  • C FTP
  • D SSH
15
LED blink program requires which components?
1 Mark
  • A Only LED
  • B LED, resistor, Arduino, wires
  • C Only Arduino
  • D Only resistor
16
analogRead() returns value range?
1 Mark
  • A 0-1
  • B 0-255
  • C 0-1023
  • D 0-65535
17
Temperature sensor DHT11 measures?
1 Mark
  • A Only temperature
  • B Temperature and humidity
  • C Only humidity
  • D Only pressure
18
Serial.begin(9600) sets?
1 Mark
  • A Pin number
  • B Baud rate for serial communication
  • C Delay time
  • D LED brightness
19
Tinkercad simulation allows?
1 Mark
  • A Only 3D modeling
  • B Circuit simulation with Arduino
  • C Only text editing
  • D Only image editing
20
pinMode(pin, OUTPUT) configures pin as?
1 Mark
  • A Input
  • B Output
  • C Analog
  • D Serial
21
Breadboard is used for?
1 Mark
  • A Soldering
  • B Prototyping circuits without soldering
  • C Printing
  • D Painting
22
IR sensor detects?
1 Mark
  • A Temperature
  • B Infrared radiation/proximity
  • C Sound
  • D Humidity
23
Relay module in IoT acts as?
1 Mark
  • A Sensor
  • B Electrically operated switch
  • C Display
  • D Memory
24
WiFi module ESP8266 enables?
1 Mark
  • A Bluetooth
  • B Internet/WiFi connectivity for Arduino
  • C GPS
  • D NFC
25
Smart irrigation system uses?
1 Mark
  • A Only timer
  • B Soil moisture sensor + controller + water pump
  • C Only camera
  • D Only GPS
Actions
Back to Practical Papers
Paper Info
  • Total Questions: 25
  • Total Marks: 25
  • Time: 20 min
  • Subject: M4-R5.1
Online Practical Portal
CCC / O Level Real Test Portal M1-R5.1 Online Practical M2-R5.1 Online Practical M3-R5.1 Online Practical M4-R5.1 Online Practical