Electronics - Measurement, Conversion and Control

Exercise :: Measurement, Conversion and Control - General Questions

6. 

What is the zero-voltage switch used for?

A. To reduce radiation of high frequencies during turn-on of a high current to a load
B. To control low-voltage circuits
C. To provide power to a circuit when power is lost
D. For extremely low-voltage applications

Answer: Option A

Explanation:

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7. 

Temperature sensing can be achieved by the use of

A. thermocouples
B. RTDs
C. thermistors
D. All of the above

Answer: Option D

Explanation:

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8. 

The purpose of compensation for a thermocouple is

A. to decrease temperature sensitivity
B. to increase voltage output
C. to cancel unwanted voltage output of a thermocouple
D. used for high-temperature circuits

Answer: Option C

Explanation:

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9. 

The change in value of an analog signal during the conversion process produces what is called the

A. quantization error
B. resolution error
C. Nyquist error
D. sampling error

Answer: Option A

Explanation:

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10. 

Which of the following performance specifications applies to a sample-and-hold circuit?

A. Aperture time
B. Aperture droop
C. Feedback
D. Acquisition jitter

Answer: Option A

Explanation:

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