Measurement and Instrumentation A 150 V moving iron voltmeter of accuracy class 1-0 reads 75 V when used in a circuit under standard condition. The maximum possible percentage error in the reading is 2% 2.5% 1.5% 1% 2% 2.5% 1.5% 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit. Both 1 and 2 are false. Both 1 and 2 are true. 1 is true but 2 is false. 1 is false but 2 is true. Both 1 and 2 are false. Both 1 and 2 are true. 1 is true but 2 is false. 1 is false but 2 is true. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ±3.5% ± 2.5% ± 1.5% ± 1% ±3.5% ± 2.5% ± 1.5% ± 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The material of the shunt should have _______ temperature co-efficient of resistance. Negligible Positive None of the listed here Negative Negligible Positive None of the listed here Negative ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The transfer instrument which is used for standardization of a polar type AC potentiometer is a thermal instrument. an electrostatic instrument. a dynamometer instrument. a moving coil instrument. a thermal instrument. an electrostatic instrument. a dynamometer instrument. a moving coil instrument. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Alternating current is measured by Electrostatic ammeter Induction ammeter Moving iron repulsion type voltmeter Permanent magnet type ammeter Electrostatic ammeter Induction ammeter Moving iron repulsion type voltmeter Permanent magnet type ammeter ANSWER DOWNLOAD EXAMIANS APP
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