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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Design of speed sensor and its application

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Beginner

Intermediate

Advanced

What unit is commonly used to express the speed measured by a tachometer?

a: Watts Explanation

Explanation

b: Hertz Explanation

Explanation

c: Revolutions per minute (RPM) Explanation

Explanation

d: Volts Explanation

Explanation

What is the advantage of using a photoelectric tachometer over a mechanical one?

a: Lower cost Explanation

Explanation

b: Higher accuracy Explanation

Explanation

c: Simplicity of design Explanation

Explanation

d: No power source required Explanation

Explanation

Which type of sensor is commonly used in photoelectric tachometers?

a: Phototube or photosensitive semiconductor device Explanation

Explanation

b: Thermistor Explanation

Explanation

c: Strain gauge Explanation

Explanation

d: Pressure sensor Explanation

Explanation

What determines the lifespan of the photoelectric tachometer's light source?

a: Number of holes in the disc Explanation

Explanation

b: Type of sensor used Explanation

Explanation

c: Continuous usage hours Explanation

Explanation

d: Output pulse rate Explanation

Explanation

Why might a photoelectric tachometer be preferred in digital instrumentation systems?

a: Its cheaper than other tachometers Explanation

Explanation

b: It directly provides a digital output Explanation

Explanation

c: It has an analog-to-digital converter Explanation

Explanation

d: It does not require a power source Explanation

Explanation

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