Measurement and Instrumentation Electrostatic instruments are used as Wattmeter only Ammeters only Voltmeters only Both ammeter and voltmeter Wattmeter only Ammeters only Voltmeters only Both ammeter and voltmeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Commonly used instruments in power system measurement are Rectifier Induction Moving coil or iron Electrostatic Rectifier Induction Moving coil or iron Electrostatic ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The quantity 1/√(∈0 × μ0) in SI units has the speed of light. dimension LT-1. both ‘a’ and ‘b’. none of these. speed of light. dimension LT-1. both ‘a’ and ‘b’. none of these. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for acceleration? Change in velocity / time Mass x acceleration Force x displacement Mass x velocity Change in velocity / time Mass x acceleration Force x displacement Mass x velocity ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The range of a moving iron ac ammeter is extended by A multiplier Changing number of turns of operating coil None of the listed here A shunt A multiplier Changing number of turns of operating coil None of the listed here A shunt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as (400 ± 2.24) A (400 ± 1) A (400 ±5) A (400 ± 3) A (400 ± 2.24) A (400 ± 1) A (400 ±5) A (400 ± 3) A ANSWER DOWNLOAD EXAMIANS APP
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