Measurement and Instrumentation PMMC type instruments normally use Air friction damping Eddy current damping None of these Fluid friction damping Air friction damping Eddy current damping None of these Fluid friction damping ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be 0.5% 1.2% 1.5% 1% 0.5% 1.2% 1.5% 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When using ohmmeter, applied voltage is to be disconnected from the circuit because None of these The ohmmeter has its own internal battery Current will decrease resistance Voltage source will increase resistance None of these The ohmmeter has its own internal battery Current will decrease resistance Voltage source will increase resistance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In induction type ammeter, _____ damping is provided. Air friction Fluid friction None of the listed here Eaddy current Air friction Fluid friction None of the listed here Eaddy current ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.73 1 0.84 0.65 0.73 1 0.84 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be 50Hz 500Hz 100Hz 1kHz 50Hz 500Hz 100Hz 1kHz ANSWER DOWNLOAD EXAMIANS APP
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