Measurement and Instrumentation Alternating current is measured by Induction ammeter Electrostatic ammeter Permanent magnet type ammeter Moving iron repulsion type voltmeter Induction ammeter Electrostatic ammeter Permanent magnet type ammeter Moving iron repulsion type voltmeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be 0.25 A. 0.50 A. 0.67 A. 0.70 A. 0.25 A. 0.50 A. 0.67 A. 0.70 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A spring controlled indicating instrument has a deflection of 90deg for maximum current I. The corresponding deflection for a gravity controlled instrument is 90° 30° 120° 0° 90° 30° 120° 0° ANSWER DOWNLOAD EXAMIANS APP
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 2.5 mm/Ω 5.0 mm/Ω 0.8 mm/Ω 0.4 mm/Ω 2.5 mm/Ω 5.0 mm/Ω 0.8 mm/Ω 0.4 mm/Ω ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In which of the transformer is the secondary nearly short circuited under normal operating condition? PT. CT. Power transformer. Distribution transformer. PT. CT. Power transformer. Distribution transformer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following meter is most suitable for measuring radio frequency currents? Moving - coil meter. Moving - iron meter. VTVM. Thermocouple meter. Moving - coil meter. Moving - iron meter. VTVM. Thermocouple meter. ANSWER DOWNLOAD EXAMIANS APP
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