Measurement and Instrumentation The dynamometer principle can be used for wattmeter only. voltmeter only. ammeter only. ammeter, voltmeter and wattmeter. wattmeter only. voltmeter only. ammeter only. ammeter, voltmeter and wattmeter. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is √2V. 2V. Zero. 2√2V. √2V. 2V. Zero. 2√2V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which instrument has identical calibration for ac as well as dc values? Moving iron type Induction type Moving coil type Hot wire type Moving iron type Induction type Moving coil type Hot wire type ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An analog ammeter is an absolute instrument. a recording instrument. an indicating instrument. a controlling instrument. an absolute instrument. a recording instrument. an indicating instrument. a controlling instrument. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Why is a MISC meter not recommended for DC measurement? The error is high due to hysteresis effect The error is high due to eddy current effect The meter does not respond to DC signals The meter is calibrated for AC and it’s error for DC would be high The error is high due to hysteresis effect The error is high due to eddy current effect The meter does not respond to DC signals The meter is calibrated for AC and it’s error for DC would be high ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. This is to have full deflection when 100V is measured. What is the value of series resistor to be used? 99.99 ohms 100 ohms 99.99 K ohms 100 K ohms 99.99 ohms 100 ohms 99.99 K ohms 100 K ohms ANSWER DOWNLOAD EXAMIANS APP
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