Virtual Labs

Tools

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Design of speed sensor and its application

Choose difficulty:

Beginner

Intermediate

Advanced

What is the typical output signal of a tachometer?

a: Analog voltage Explanation

Explanation

b: Digital pulse Explanation

Explanation

c: Frequency Explanation

Explanation

d: Current Explanation

Explanation

In a photoelectric tachometer, what is the relationship between pulse rate and rotational speed?

a: Pulse rate is directly proportional to speed Explanation

Explanation

b: Pulse rate is inversely proportional to speed Explanation

Explanation

c: Pulse rate remains constant regardless of speed Explanation

Explanation

d: Pulse rate depends only on light intensity Explanation

Explanation

Which of the following can help improve accuracy in a photoelectric tachometer?

a: Using fewer holes on the disc Explanation

Explanation

b: Increasing the gating period Explanation

Explanation

c: Decreasing the speed of rotation Explanation

Explanation

d: Lowering the pulse rate Explanation

Explanation

What is a significant disadvantage of the photoelectric tachometer?

a: High cost of the opaque disc Explanation

Explanation

b: Limited lifespan of the light source Explanation

Explanation

c: Inconsistent pulse amplitudes Explanation

Explanation

d: Difficult calibration Explanation

Explanation

Why does a photoelectric tachometer not require analog-to-digital conversion?

a: It produces digital output directly Explanation

Explanation

b: It has an integrated converter Explanation

Explanation

c: The output is purely analog Explanation

Explanation

d: It uses a mechanical counter Explanation

Explanation

Community Links Sakshat Portal Outreach Portal FAQ: Virtual Labs

AGPL 3.0 & Creative Commons (CC BY-NC-SA 4.0)