Measurement and Instrumentation The range of a moving iron ac ammeter is extended by Changing number of turns of operating coil A shunt A multiplier None of the listed here Changing number of turns of operating coil A shunt A multiplier None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure 5 volts, if one selects a 0-100 volt range voltmeter which is accurate with in ± 1%, then the error in this measurement may be up to ± 7.5 % ± 2.5% ± 1.5% ± 20% ± 7.5 % ± 2.5% ± 1.5% ± 20% 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 The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures Power proportional to 3 phase power if the load is balanced Active power in R phase Active power of Y phase Reactive power of R phase Power proportional to 3 phase power if the load is balanced Active power in R phase Active power of Y phase Reactive power of R phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following is a variable displacement transducer? synchros tachometer potentiometer None of these synchros tachometer potentiometer None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a portable instrument , the controlling torque is provided by Eddy currents All of the listed here Spring Gravity Eddy currents All of the listed here Spring Gravity ANSWER DOWNLOAD EXAMIANS APP
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