Measurement and Instrumentation Which of following are needed both for protection and metering? Wattmeters. Energy meter. Power factor meters. Instrument transformer. Wattmeters. Energy meter. Power factor meters. Instrument transformer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In eddy current damping, disc or former is made of a material that is a Conductor but non magnetic Conductor but magnetic Non conductor and non magnetic Non conductor but magnetic Conductor but non magnetic Conductor but magnetic Non conductor and non magnetic Non conductor but magnetic ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Why is a MISC meter not recommended for DC measurement? The meter does not respond to DC signals The error is high due to eddy current effect The error is high due to hysteresis effect The meter is calibrated for AC and it’s error for DC would be high The meter does not respond to DC signals The error is high due to eddy current effect The error is high due to hysteresis effect The meter is calibrated for AC and it’s error for DC would be high ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Induction wattmeter can measure Both AC and DC 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 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation How many fundamental units are there ? 6 4 7 8 6 4 7 8 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured as I1 = 150 ± 1A , I2 = 250 ± 2A, where the limits of error are as standard deviations. I is measured as (400 ± 2.24) A (400 ± 1.5) A (400 ± 1) A (400 ± 3) A (400 ± 2.24) A (400 ± 1.5) A (400 ± 1) A (400 ± 3) A ANSWER DOWNLOAD EXAMIANS APP
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