Discussion
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- Question
A(n) _____ can be rapidly switched on and off remotely by another controlling circuit.
Options- A. triac
- B. diac
- C. RTD
- D. zero-voltage switch
- Correct Answer
- triac
- 1. A triac is different from an SCR because ________.
Options- A. it can handle large current flows
- B. it can handle large voltages
- C. the gate signal can turn off the current flow
- D. it allows current flow in both directions Discuss
- 2. A thermistor's temperature characteristic is essentially _________.
Options- A. linear
- B. logarithmic
- C. nonlinear
- D. geometric Discuss
- 3. All triacs operate in __________.
Options- A. quadrant 1 and quadrant 2
- B. quadrant 1 and quadrant 3
- C. quadrant 2 and quadrant 4
- D. quadrant 3 and quadrant 4 Discuss
- 4. A sample-and-hold circuit consists of _________.
Options- A. an op-amp, an analog switch, and an inductor
- B. an op-amp, an analog switch, and a capacitor
- C. two op-amps, an analog switch, and a variable resistor
- D. two op-amps, an analog switch, and a capacitor Discuss
- 5. The voltage produced by a thermocouple is called the _________.
Options- A. hot junction voltage
- B. cold junction voltage
- C. Seebeck voltage
- D. Hooke voltage Discuss
- 6. The number of bits in a digital word determines the number of digital combinations that will be represented. The number of combinations can be calculated by ________.
Options- A. raising 2 to the number of bits in the analog word
- B. raising 2 to the number of bits in the digital word
- C. multiplying 2 by the number of bits in the analog word
- D. determining the range of the analog word Discuss
- 7. The ______ is composed of a transformer with a movable core, a primary, and two secondaries.
Options- A. LVDT
- B. strain gauge
- C. accelerometer
- D. transformer displacement sensor Discuss
- 8. RTDs, strain gauges, and pressure transducers are _____ devices.
Options- A. resistive
- B. inductive
- C. capacitive
- D. solid-state Discuss
- 9. The two most common types of analog-to-digital converters discussed in this chapter were the ______.
Options- A. linear converter and the analog converter
- B. linear converter and the successive approximation converter
- C. flash converter and the analog converter
- D. flash converter and the successive approximation converter Discuss
- 10. A common-emitter (C-E) is so called because the emitter is connected to both the input and output signals.
Options- A. True
- B. False Discuss
Measurement, Conversion and Control problems
Search Results
Correct Answer: it allows current flow in both directions
Correct Answer: logarithmic
Correct Answer: quadrant 1 and quadrant 3
Correct Answer: two op-amps, an analog switch, and a capacitor
Correct Answer: Seebeck voltage
Correct Answer: raising 2 to the number of bits in the digital word
Correct Answer: LVDT
Correct Answer: resistive
Correct Answer: flash converter and the successive approximation converter
Correct Answer: True
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