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Measurement And Instrumentation MCQ Questions & Answers | ECE

Learn Measurement And Instrumentation MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Measurement And Instrumentation MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-8 section-1

Each section contains 100 MCQs on Measurement and Instrumentation .
71
An inductive pick-up is used to measure speed of a shaft on which a 120 tooth-wheel is attached. The number of pulses produced per second is 3000. What is the RPM of the shaft?
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Answer & Solution
Answer: Option A
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72
Very small displacements are effectively measured using
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Answer: Option A
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73
The bridge best suited for measurement of mutual inductance is:
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Answer: Option C
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74
For a dynamometer-type instrument, the incorrect statement from the following is:
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Answer: Option C
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75
The device possessing the highest photosensitivity is a
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Answer: Option A
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76
Which one of the following is correct? The generated emf of tachogenerator is
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Answer: Option A
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77
Which of the following line telemetry systems are available?
1. Voltage telemetry system
2. Current telemetry systems
3. Positions telemetry systems
4. Resistivity telemetry systems
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Answer: Option A
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78
Which one of the following is not used for measurement of density?
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Answer: Option A
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79
Input and output from a common-base amplifier are fed to an oscilloscope to see their phase relationship. The Lissajous figure is:
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Answer: Option D
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80
The force between two charged particle is given by, $${\text{F}} = \frac{1}{{4\pi {\varepsilon _0}}}\frac{{{{\text{Q}}_{\text{1}}}{{\text{Q}}_{\text{2}}}}}{{{{\text{r}}^2}}},$$    where the symbols have their usual meanings. The dimensions of ∈0 in free space in SI system are:
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Answer: Option B
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