Mobile Phone Sensors MCQ – Multiple Choice Questions on Sensors used in Phones

Your mobile phones are loaded with a couple of sensors that are installed to detect changes in the environment and convert them into electronic signals that can be processed by your phones.

Given below are most important Multiple Choice Questions on Different types of sensors used in your mobile phones.

Also See Top 10 MCQs on Sensors

The most popular type sensor used in mobile phones fingerprint

The most popular type sensor used in mobile phones fingerprint:

1. Capacitive sensor
2. LDR sensor
3. Thermistor
4. Resistive sensor

Correct answer: 1. Capacitive sensor

The most popular type of sensor used in the mobile phone fingerprint is a capacitive sensor

Also See: The Change in the output of the sensor with a change in input is known as, Which of the following is not an analog sensor

Role of Barometer sensor in Mobile phones

Mobile phones have barometer sensor for which purpose:

1. To measure strength of magnetic field
2. To measure phone orientation
3. To corrects altitude measurement errors
4. To automatically lock screen when flipped

Correct answer: 3. To corrects altitude measurement errors

Mobile phones have barometer sensor which is responsible for correcting altitude measurement errors

Similar MCQ: Smallest change which a sensor can detect is

Which of the following sensor is used in mobile phones MCQ

Which of the following sensor is used in mobile phones MCQ:

1. Gyroscope
2. Compass
3. Gravity sensor
4. All of these

Correct answer: 4. All of these

A mobile phone is loaded with gyroscope, compass, as well as gravity sensor.

Which sensor is responsible for automatically locking the screen of the phone when you close the flip cover

Which sensor is responsible for automatically locking the screen of the phone when you close the flip cover:

1. Barometer
2. Hall effect sensor
3. Gyroscope
4. Ambient light sensor

Correct answer: 2. Hall effect sensor

Hall effect sensor is responsible for automatically locking the screen of the phone when you close the flip cover.

Also see: Tactile sensors MCQ Questions

Which type of phone sensor is used in screen brightness adjustment

The sensor which automatically increases or decreases the screen brightness as per environmental conditions:

1. Hall effect sensor
2. Gyroscope
3. Ambient light sensor
4. Proximity sensor

Correct answer: 3. Ambient light sensor

The ambient light sensor automatically adjusts the screen brightness as per ambient light

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