Measurement and Instrumentation A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as 3600 rev/KWh. 3750 rev/KWh. 960 rev/KWh. 1000 rev/KWh. 3600 rev/KWh. 3750 rev/KWh. 960 rev/KWh. 1000 rev/KWh. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 2 mA. 4 mA. 3 mA. 1 mA. 2 mA. 4 mA. 3 mA. 1 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A power factor meter has One current circuit and one pressure circuit Two current circuit and one pressure circuit None of the listed here One current circuit and two pressure circuits One current circuit and one pressure circuit Two current circuit and one pressure circuit None of the listed here One current circuit and two pressure circuits 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 1% 1.2% 1.5% 0.5% 1% 1.2% 1.5% 0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When checked with an ohm meter an open resistor reads infinite. high but within tolerance. low but not zero. zero. infinite. high but within tolerance. low but not zero. zero. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Induction wattmeter can measure Dc power only Ac power only None of the listed here Both AC and DC Dc power only Ac power only None of the listed here Both AC and DC ANSWER DOWNLOAD EXAMIANS APP
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