Measurement and Instrumentation Instrument transformers are Current transformers Both current and potential transformers Power transformers Pottential transformers Current transformers Both current and potential transformers Power transformers Pottential transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If the instrument is to have a wide range, the instrument should have Linear scale Square-law scale Exponential scale Logarithmic scale Linear scale Square-law scale Exponential scale Logarithmic scale 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 ± 1.5% ± 2.5% ± 1% ± 3.5% ± 1.5% ± 2.5% ± 1% ± 3.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Induction wattmeter can measure Ac power only Dc power only None of the listed here Both AC and DC Ac power only Dc power only None of the listed here Both AC and DC ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The three resistors R1, R2 and R3 have the following ratings: R1 = 25Ω ± 4%, R2 = 65 Ω ± 4%; R3 =45 Ω ± 4%. If the resistance are connected in series, then limiting error produced in equivalent resistance is 2% 3% 4% 1% 2% 3% 4% 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An oscilloscope indicates Peak to peak value of voltage RMS value DC value of voltage Average value Peak to peak value of voltage RMS value DC value of voltage Average value ANSWER DOWNLOAD EXAMIANS APP