All Free Chemical Engineering MCQs with Answers
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6,983 questions · page 350 of 350
6981. ______________ circuit is most commonly used to measure strain with the help of a strain gauge?
- A. Ballast
- B. Voltage balancing potentiometric
- C. Simple current sensitive
- D. None of these
Explanation: Strain gauges are commonly connected in a Wheatstone-bridge arrangement, often operated as a voltage-balancing circuit so very small…
Correct answer: Voltage balancing potentiometric- A. Piezoelectric
- B. Preloaded spring
- C. Bonded strain gauge
- D. None of these
Explanation: Piezoelectric accelerometers are well suited to very high-frequency vibration because their stiff sensing elements have a broad…
Correct answer: Piezoelectric- A. Frequency counter
- B. Tachometer
- C. Strobometer
- D. Speedometer
Explanation: A strobometer determines rotational speed from the stationary image produced when flashing frequency matches the shaft speed, allowing…
Correct answer: Strobometer