Single Channel Data Acquisition System

Electrical Measurements

This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Single Channel Data Acquisition System”.

1. A single channel data system consists of a signal conditioner, A/D converter and a buffer.
a) True
b) False

2. A/D conversion rate is __________
a) variable
b) predefined
c) zero
d) constant

3. The buffer output is ________
a) analog
b) zero
c) digital
d) mixed mode

4. Which is the best example of a single channel data acquisition system?
a) CPM
b) BPM
c) APM
d) DPM

5. Digital outputs are obtained from _____________
a) A/D converter
b) D/A converter
c) Oscilloscope
d) Voltage source

6. A/D converters can’t be used for low frequency ranges.
a) True
b) False

7. Which technique is most widely used in the single channel data acquisition system?
a) Counter type approximation
b) Flash approximation
c) Successive approximation
d) Delta Sigma approximation

8. What is pre-amplification?
a) reducing the magnitude of a signal
b) making the magnitude of a signal zero
c) reducing the noise
d) boosting the signal

9. How can the input be isolated from the system?
a) using optocouplers
b) using op-amps
c) using a capacitor
d) using rectifiers

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