Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Systematic errors Gross errors Random errors Environmental errors Systematic errors Gross errors Random errors Environmental errors 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% ± 3.0% ±3.5% ±0.5% ± 1.5% ± 3.0% ±3.5% ±0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The thermocouple instrument will measure Voltage Current Flux None of these Voltage Current Flux None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An ammeter is a Absolute instrument Secondary instrument Integrating instrument Recording instrument Absolute instrument Secondary instrument Integrating instrument Recording instrument ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be 50 W. 100 W. 25 W. 0 W. 50 W. 100 W. 25 W. 0 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be 260 V. 252 V. 250 V. 248 V. 260 V. 252 V. 250 V. 248 V. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS