Measurement and Instrumentation A first order instrument is characterized by Time constant only Static sensitivity and damping coefficient Static sensitivity, damping coefficient and natural frequency of oscillations Static sensitivity and time constant Time constant only Static sensitivity and damping coefficient Static sensitivity, damping coefficient and natural frequency of oscillations Static sensitivity and time constant ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Why is a MISC meter not recommended for DC measurement? The error is high due to hysteresis effect The error is high due to eddy current effect The meter does not respond to DC signals The meter is calibrated for AC and it’s error for DC would be high The error is high due to hysteresis effect The error is high due to eddy current effect The meter does not respond to DC signals The meter is calibrated for AC and it’s error for DC would be high ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as (400 ± 2.24) A (400 ± 3) A (400 ±5) A (400 ± 1) A (400 ± 2.24) A (400 ± 3) A (400 ±5) A (400 ± 1) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Systematic errors Gross errors Environmental errors Random errors Systematic errors Gross errors Environmental errors Random errors ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation How many time-base circuits does a dual face CRO can have? 2. 4. 3. 1. 2. 4. 3. 1. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a moving coil instrument, the deflecting torque is proportional to Squareroot of the current Sine of the measurand Current Square of the current Squareroot of the current Sine of the measurand Current Square of the current ANSWER DOWNLOAD EXAMIANS APP
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