Explore topic-wise MCQs in Arduino.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Arduino knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the maximum distance that the Ultrasonic Sensor can detect an object?

A. 8 cm
B. 200 cm
C. 9 cm
D. 20.21 cm
Answer» C. 9 cm
Discussion
2.

What is the optimum current that is required to operate the Ultrasonic Sensor?

A. 20 mA
B. 15 mA
C. 200 A
D. 1 A
Answer» C. 200 A
Discussion
3.

What are the factors that affect the performance of the Ultrasonic Sensor during operation?

A. Distant Target Object
B. Target Object hidden by fog
C. Smoke
D. Dust
Answer» B. Target Object hidden by fog
Discussion
4.

What kind of waves does the Ultrasonic Sensor work on?

A. Gas
B. Heat
C. Light
D. Sound
Answer» E.
Discussion
5.

If 1 means an object is detected and 0 meaning no object is detected, then considering the sensor is stationary, what can be said about the movement of the object if the output by the sensor is 1010101?

A. Object is stationary
B. Object is oscillating side by side
C. Object is continuously moving away
D. Object is continuously moving closer
Answer» C. Object is continuously moving away
Discussion
6.

What will happen if we supply a voltage of 25V to the Vcc of the Ultrasonic sensor?

A. Damage is caused
B. Sensor will work fine
C. Sensor will not respond for the time the voltage is applied
D. Sensor will function normally
Answer» B. Sensor will work fine
Discussion
7.

What mode should we put the Arduino pin to, in order for object detection to work with the Ultrasonic Sensor?

A. Analog
B. Digital
C. PCM
D. TDM
Answer» C. PCM
Discussion
8.

How many pins are present in the Ultrasonic Sensor?

A. 1
B. 3
C. 2
D. 4
Answer» E.
Discussion
9.

What is the use of the Ultrasonic Sensor?

A. Proximity Detection
B. Humidity Detection
C. Image Processing
D. GPS
Answer» B. Humidity Detection
Discussion