Measurement and Instrumentation The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is ± 6% ± 2.8% ± 3% ± 4% ± 6% ± 2.8% ± 3% ± 4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Errorneous standardisation. Stray thermal emfs. Stray magnetic fields. Ripples of the DC supply. Errorneous standardisation. Stray thermal emfs. Stray magnetic fields. Ripples of the DC supply. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil Potential coil None of the listed here Current coil and potential coil Current coil Potential coil None of the listed here Current coil and potential coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the name of physical quantities which are independent of each other? Fundamental quantity Numerical quantity None of these Derived quantity Fundamental quantity Numerical quantity None of these Derived quantity ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Consider the following statements : In a measuring instrument, 1. Linearity is more important than sensitivity. 2. High precision indicates high accuracy 3. Accuracy cannot be better than resolution. Of these statements 1, 2 and 3 are correct 1 and 3 are correct 1 and 2 are correct 2 and 3 are correct 1, 2 and 3 are correct 1 and 3 are correct 1 and 2 are correct 2 and 3 are correct ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following meters has a linear scale? Thermocouple meter Moving coil meter Moving iron meter Hot wore meter Thermocouple meter Moving coil meter Moving iron meter Hot wore meter ANSWER DOWNLOAD EXAMIANS APP
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