Measurement and Instrumentation Which of the following devices should be used for accurate measurement of low D.C. voltage? Small range moving coil voltmeter C. potentiometer None of these Small range thermocouple voltmeter Small range moving coil voltmeter C. potentiometer None of these Small range thermocouple voltmeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Gross errors Systematic errors Environmental errors Random errors Gross errors Systematic errors Environmental errors Random errors 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 K ohms 100 K ohms 99.99 ohms 100 ohms 99.99 K ohms 100 K ohms 99.99 ohms 100 ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A PMMC instrument can be used as flux meter By using a high series resistance By making control springs of large moment of inertia By using a low resistance shunt By eliminating the control springs By using a high series resistance By making control springs of large moment of inertia By using a low resistance shunt By eliminating the control springs ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Alternating current is measured by Moving iron repulsion type voltmeter Induction ammeter Permanent magnet type ammeter Electrostatic ammeter Moving iron repulsion type voltmeter Induction ammeter Permanent magnet type ammeter Electrostatic ammeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance ± 2.5% ± 1.5% ± 3.5% ± 1% ± 2.5% ± 1.5% ± 3.5% ± 1% ANSWER DOWNLOAD EXAMIANS APP
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