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- Question
The resistive change of a strain gauge
Options- A. is based on the weight placed upon it, but can be many thousands of ohms
- B. is usually no more than 100 Ω
- C. is based on the gauge factor, but is typically less than an ohm
- D. has a positive temperature coefficient
- Correct Answer
- is based on the gauge factor, but is typically less than an ohm
- 1. A basic series regulator has
Options- A. an error detector
- B. a load
- C. a reference voltage
- D. both an error detector and a reference voltage Discuss
- 2. In an averaging amplifier, the input resistances are
Options- A. equal to the feedback resistance
- B. less than the feedback resistance
- C. greater than the feedback resistance
- D. unequal Discuss
- 3. The ramp voltage at the output of an op-amp integrator
Options- A. increases or decreases at a linear rate
- B. increases or decreases exponentially
- C. is always increasing and never decreasing
- D. is constant Discuss
- 4. A digital-to-analog converter is an application of the
Options- A. scaling adder
- B. voltage-to-current converter
- C. noninverting amplifier
- D. adjustable bandwidth circuit Discuss
- 5. A comparator is an example of a(n)
Options- A. active filter
- B. current source
- C. linear circuit
- D. nonlinear circuit Discuss
- 6. The change in value of an analog signal during the conversion process produces what is called the
Options- A. quantization error
- B. resolution error
- C. Nyquist error
- D. sampling error Discuss
- 7. The purpose of compensation for a thermocouple is
Options- 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 Discuss
- 8. What is the moving part of a linear variable differential transformer?
Options- A. Primary
- B. Secondary
- C. Diaphragm
- D. Core Discuss
- 9. Holding current for an SCR is best described as
Options- A. the minimum current required for turn-off
- B. the current required before an SCR will turn on
- C. the amount of current required to maintain conduction
- D. the gate current required to maintain conduction Discuss
- 10. What device is similar to an RTD but has a negative temperature coefficient?
Options- A. Strain gauge
- B. Thermistor
- C. Negative-type RTD
- D. Thermocouple Discuss
Measurement, Conversion and Control problems
Search Results
Correct Answer: both an error detector and a reference voltage
Correct Answer: greater than the feedback resistance
Correct Answer: increases or decreases at a linear rate
Correct Answer: scaling adder
Correct Answer: nonlinear circuit
Correct Answer: quantization error
Correct Answer: to cancel unwanted voltage output of a thermocouple
Correct Answer: Core
Correct Answer: the amount of current required to maintain conduction
Correct Answer: Thermistor
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