Measurement and Instrumentation A 0 - 100 V voltmeter has a guaranteed accuracy of 2 % of full scale reading. The voltage measured by the voltmeter is 75 V. The limiting error is in percentage 3.33 %. 2 %. 2.66 %. 1 %. 3.33 %. 2 %. 2.66 %. 1 %. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following are integrating instruments? Wattmeters Voltmeters Ammeters Ampere hour and watt hour meters Wattmeters Voltmeters Ammeters Ampere hour and watt hour meters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is postioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is 200 Nm. 100 Nm. 2 Nm. 1 Nm. 200 Nm. 100 Nm. 2 Nm. 1 Nm. 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 ± 3.5% ± 2.5% ± 1.5% ± 1% ± 3.5% ± 2.5% ± 1.5% ± 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A voltmeter has 100 scale divisions and can measure up to 100 V. Each division can be read to ½ division. The resolution of the voltmeter is 0.5 V 2 V 1.5 V 1 V 0.5 V 2 V 1.5 V 1 V ANSWER DOWNLOAD EXAMIANS APP
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 960 rev/KWh. 3600 rev/KWh. 1000 rev/KWh. 3750 rev/KWh. 960 rev/KWh. 3600 rev/KWh. 1000 rev/KWh. 3750 rev/KWh. ANSWER DOWNLOAD EXAMIANS APP
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