Iot quiz

Which of the following is not an actuator in IoT?

• Stepper motor

• A fan

• An LED

• Arduino

Are sensors used along with other electronic devices?

• Yes

• No

Smallest change which a sensor can detect is

• Resolution

• Accuracy

• Precision

• Scale

Sensor is a type of transducer.

• True

• False

What is the primary function of a photo-diode?

• Measure temperature

• Detect force

• Detect light intensity

• Monitor chemical reaction

Which type of output signal do digital sensors produce?

• Analog signal

• Continuous signal

• Non continuous signal

• Variable signal

In which types of sensors does hysteresis error typically occur?

• Digital sensors

• Thermal sensors

• Analog sensors

• Magnetic sensors

What kind of information is provided by vector sensors in addition to magnitude?

• Color information

• Binary output

• Direction and orientation

• Frequency information

Pneumatic actuator converts the signal into

• Linear motion

• Oscillatory motion

• Uniform motion

• Periodic motion

Which is uesd in valves to control the water pipes in pneumatic actuators

• Solenoid

• Pinion

• Both

• None of the above