Measurement and Instrumentation In a wheatstone bridge, a change of 6 Ω in the unknown arm of bridge is required to produce a change in deflection of 2.4 mm of the galvanometer. The sensitivity is 5.0 mm/Ω 2.5 mm/Ω 0.8 mm/Ω 0.4 mm/Ω 5.0 mm/Ω 2.5 mm/Ω 0.8 mm/Ω 0.4 mm/Ω ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What are the SI units of mass, length and time respectively? g, m and s. g, cm and s. kg, cm and s. kg, m and s. g, m and s. g, cm and s. kg, cm and s. kg, m and s. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wattmeter reads 30.34 W. The absolute error in the measurement is - 2.22 W. What is the true value of power? 32.56 W . 28.12 W. 25.45 W. None of these 32.56 W . 28.12 W. 25.45 W. None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.73 0.84 0.65 1 0.73 0.84 0.65 1 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An electric pyrometer is an instrument used to measure Phase None of the listed here High temperatures Frequency Phase None of the listed here High temperatures Frequency ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Potentiometer method of DC voltage measurement is more accurate than direct measurement using a voltmeter because It loads the circuit to maximum extent. It does not load the circuit at all. It uses centre zero galvanometer instead of voltmeter. It loads the circuit moderately. It loads the circuit to maximum extent. It does not load the circuit at all. It uses centre zero galvanometer instead of voltmeter. It loads the circuit moderately. ANSWER DOWNLOAD EXAMIANS APP
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