Measurement and Instrumentation The power factor of a single phase load can be calculated if the instruments available are One voltmeter and one ammeter One voltmeter, one ammeter and one wattmeter One ammeter, one voltmeter and one energy meter Any of the listed here One voltmeter and one ammeter One voltmeter, one ammeter and one wattmeter One ammeter, one voltmeter and one energy meter Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Symmetric errors are Instrument errors Observational errors Environment errors All of the listed here Instrument errors Observational errors Environment errors All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Stray magnetic fields. Ripples of the DC supply. Errorneous standardisation. Stray thermal emfs. Stray magnetic fields. Ripples of the DC supply. Errorneous standardisation. Stray thermal emfs. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pressure coil of a wattmeter should be connected on the supply side of the current coil when None of these Supply voltage is low Load impedance is high Load impedance is low None of these Supply voltage is low Load impedance is high Load impedance is low ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which one of the following units is a fundamental unit? Joule/sec Ampere Newton Watt Joule/sec Ampere Newton Watt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When using ohmmeter, applied voltage is to be disconnected from the circuit because The ohmmeter has its own internal battery None of these Voltage source will increase resistance Current will decrease resistance The ohmmeter has its own internal battery None of these Voltage source will increase resistance Current will decrease resistance ANSWER DOWNLOAD EXAMIANS APP
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