Explore topic-wise MCQs in Internet of things (IoT).

This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Internet of things (IoT) knowledge and support exam preparation. Choose a topic below to get started.

1.

________ detects metals but along with it can also detect resins, liquids.

A. Inductive proximity
B. Capacitive Proximity
C. Magnetic Proximity
D. Parallel Proximity
Answer» C. Magnetic Proximity
2.

Which device generates output signal when metal objects are either inside or entering into sensing area.

A. Capacitive Proximity
B. Magnetic Proximity
C. Inductive proximity
D. Parallel Proximity
Answer» B. Magnetic Proximity
3.

Does proximity sensor have a temperature sensor in it?

A. True
B. False
Answer» B. False
4.

DOES_PROXIMITY_SENSOR_HAVE_A_TEMPERATURE_SENSOR_IN_IT??$

A. True
B. False
Answer» B. False
5.

________ detects metals but along with it can also detect resins, liquids.$

A. Inductive proximity
B. Capacitive Proximity
C. Magnetic Proximity
D. Parallel Proximity
Answer» C. Magnetic Proximity
6.

Which device generates output signal when metal objects are either inside or entering into sensing area.$

A. Capacitive Proximity
B. Magnetic Proximity
C. Inductive proximity
D. Parallel Proximity
Answer» B. Magnetic Proximity
7.

What is the sensing range for capacitive proximity sensors?

A. 150mm
B. 25mm
C. 120mm
D. 100mm
Answer» D. 100mm
8.

What is the sensing range for magnetic proximity sensors?

A. 120mm
B. 90mm
C. 150mm
D. 100mm
Answer» B. 90mm
9.

_________ sensors have no electrical noise effect and it can work DC.

A. Inductive proximity
B. Capacitive Proximity
C. Magnetic Proximity
D. Parallel Proximity
Answer» D. Parallel Proximity
10.

Which protocol is used by proximity sensor?

A. I2C
B. SPI
C. UART/USART
D. CAN
Answer» B. SPI
11.

VCNL4100CT allows the proximity detection up to________

A. 2 meter
B. 1 meters
C. 0.5 meters
D. 1.5 meters
Answer» C. 0.5 meters
12.

Are proximity sensors used in retail settings?

A. True
B. False
Answer» B. False
13.

Which proximity sensor detects positioning of an object?

A. Inductive Proximity Sensor
B. Capacitive Proximity Sensor
C. Optical Proximity Sensor
D. Magnetic Proximity Sensor
Answer» D. Magnetic Proximity Sensor
14.

Which proximity sensors are used in automotive?

A. Inductive Proximity Sensor
B. Capacitive Proximity Sensor
C. Magnetic Proximity Sensor
D. Ultrasonic Proximity Sensor
Answer» E.
15.

Which proximity sensor indicates level?

A. Inductive Proximity Sensor
B. Capacitive Proximity Sensor
C. Magnetic Proximity Sensor
D. Ultrasonic Proximity Sensor
Answer» B. Capacitive Proximity Sensor
16.

Which proximity sensor detects metal objects?

A. Capacitive Proximity Sensor
B. Magnetic Proximity Sensor
C. Ultrasonic Proximity Sensor
D. Inductive Proximity Sensor
Answer» E.
17.

The monitoring of machines, gears and objects are achieved by which sensor?

A. Humidity sensor
B. Proximity sensor
C. Touch sensor
D. Pressure sensor
Answer» C. Touch sensor
18.

Which sensor can detect nearby objects?

A. Proximity sensor
B. Humidity sensor
C. Touch sensor
D. Pressure sensor
Answer» B. Humidity sensor