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Electrical Engineering Mechatronics System Design Lab Experiments

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Posttest

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

I/O Programming -Interfacing of Proximity switches and Relays

Choose difficulty:

Beginner

Intermediate

Advanced

What is the primary purpose of a relay in electronic circuits?

a: Amplify signals Explanation

Explanation

b: Convert DC to AC Explanation

Explanation

c: Electrically control a switch Explanation

Explanation

d: Measure current Explanation

Explanation

Which Arduino function is used to set a pin as output?

a: pinMode() Explanation

Explanation

b: pinOut() Explanation

Explanation

c: setPin() Explanation

Explanation

d: digitalMode() Explanation

Explanation

What type of device is a relay?

a: Sensor Explanation

Explanation

b: Output device Explanation

Explanation

c: Input device Explanation

Explanation

d: Microcontroller Explanation

Explanation

What is the typical state of a relay when no current flows through its coil?

a: NO is connected to COM Explanation

Explanation

b: Both are disconnected Explanation

Explanation

c: Both are connected Explanation

Explanation

d: NC is connected to COM Explanation

Explanation

Why is a resistor used with an LED?

a: To increase brightness Explanation

Explanation

b: To prevent overheating Explanation

Explanation

c: To limit current Explanation

Explanation

d: To blink it Explanation

Explanation

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