Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Environmental errors Gross errors Systematic errors Random errors Environmental errors Gross errors Systematic errors Random errors ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The dynamometer principle can be used for voltmeter only. ammeter only. ammeter, voltmeter and wattmeter. wattmeter only. voltmeter only. ammeter only. ammeter, voltmeter and wattmeter. wattmeter only. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of an ammeter should be Very small Infinity High Medium Very small Infinity High Medium ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Commonly used instruments in power system measurement are Moving coil or iron Electrostatic Rectifier Induction Moving coil or iron Electrostatic Rectifier Induction ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A voltmeter using thermocouple measures Peak value. Peak to peak value. Average value. rms value. Peak value. Peak to peak value. Average value. rms value. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be 250 V. 252 V. 260 V. 248 V. 250 V. 252 V. 260 V. 248 V. ANSWER DOWNLOAD EXAMIANS APP
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