Measurement and Instrumentation Purely mechanical instrument cannot be used for dynamic measurements because they have higher response time. All of these high inertia. large time constant. higher response time. All of these high inertia. large time constant. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Comparison methods are used because they are most simple. because they are expensive. because they take least time in measurement. when a high accuracy of measurement is required. because they are most simple. because they are expensive. because they take least time in measurement. when a high accuracy of measurement is required. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ? ± 1.5% ±3.5% ±0.5% ± 3.0% ± 1.5% ±3.5% ±0.5% ± 3.0% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 21.1 rpm. 18.2 rpm. 12.8 rpm. 16.02 rpm. 21.1 rpm. 18.2 rpm. 12.8 rpm. 16.02 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistance of 105 ohms is specified using significant figures as indicated below : 1. 105 ohms 2. 105.0 ohms 3. 0.000105 mega ohms Among these, 1, 2 and 3 represent same precision. 2 represents greater precision but 1 and 3 represent same precision. 2 and 3 represent greater precision than 1. 1 represents greater precision than 2 and 3. 1, 2 and 3 represent same precision. 2 represents greater precision but 1 and 3 represent same precision. 2 and 3 represent greater precision than 1. 1 represents greater precision than 2 and 3. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A potentiometer may be used for Measurrment of resistance All of the listed here Calibration of ammeter Measurement of current Measurrment of resistance All of the listed here Calibration of ammeter Measurement of current ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS