Measurement and Instrumentation No eddy current and hysteresis losses occur in Electrodynamo meter instruments Electrostatic instruments PMMC instruments Moving iron instruments Electrodynamo meter instruments Electrostatic instruments PMMC instruments Moving iron instruments ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading? 5 A. 4.06 A. 6.09 A. 2.03 A. 5 A. 4.06 A. 6.09 A. 2.03 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Comparison methods are used because they take least time in measurement. when a high accuracy of measurement is required. because they are expensive. because they are most simple. because they take least time in measurement. when a high accuracy of measurement is required. because they are expensive. because they are most simple. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil ammeter has a uniform scale with 50 division and gives a full scale reading 10 A. The instrument can read up to (1/5)th of a scale division with a fair degree of certainty. What is the resolution of the instrument in mA? 25 mA. 80 mA. 50 mA. 40 mA. 25 mA. 80 mA. 50 mA. 40 mA. 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. 3 mA. 1 mA. 4 mA. 2 mA. 3 mA. 1 mA. 4 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pressure coil of a wattmeter should be connected on the supply side of the current coil when Supply voltage is low Load impedance is low Load impedance is high None of these Supply voltage is low Load impedance is low Load impedance is high None of these ANSWER DOWNLOAD EXAMIANS APP
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