Measurement and Instrumentation A wattmeter reads 30.34 W. The absolute error in the measurement is - 2.22 W. What is the true value of power? 32.56 W . 28.12 W. None of these 25.45 W. 32.56 W . 28.12 W. None of these 25.45 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is 20. 25.4. 31.4. 54.2. 20. 25.4. 31.4. 54.2. 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 1.5% 1.2% 1% 0.5% 1.5% 1.2% 1% 0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Comparison methods are used 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. because they take least time in measurement. when a high accuracy of measurement is required. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation How many fundamental units are there ? 4 6 7 8 4 6 7 8 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is 50 V. 100 V. 25 V. 200 V. 50 V. 100 V. 25 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
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