Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.65 0.73 1 0.84 0.65 0.73 1 0.84 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Dynamic errors are caused by environmental error human error observational error instrument not responding fast environmental error human error observational error instrument not responding fast ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for momentum? force × displacement mass × acceleration change of velocity / time mass × velocity force × displacement mass × acceleration change of velocity / time mass × velocity ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a moving iron meter, the deflecting torque is proportional to Sine of the measurand Current through the coil Square of the current through the coil Squareroot of the measurand Sine of the measurand Current through the coil Square of the current through the coil Squareroot of the measurand ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If the instrument is to have a wide range, the instrument should have Square-law scale Exponential scale Linear scale Logarithmic scale Square-law scale Exponential scale Linear scale Logarithmic scale ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used? 1/49.99 ohms 1 Ohm 2 Ohms 49.99 Ohms 1/49.99 ohms 1 Ohm 2 Ohms 49.99 Ohms ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS