Measurement and Instrumentation A dynamometer wattmeter can be used for Both DC and AC AC only Any of the listed here DC only Both DC and AC AC only Any of the listed here DC only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil and potential coil Current coil None of the listed here Potential coil Current coil and potential coil Current coil None of the listed here Potential coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is 200 µNm. 100 µNm. 2 µNm. 1 µNm. 200 µNm. 100 µNm. 2 µNm. 1 µNm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit. Both 1 and 2 are false. Both 1 and 2 are true. 1 is false but 2 is true. 1 is true but 2 is false. Both 1 and 2 are false. Both 1 and 2 are true. 1 is false but 2 is true. 1 is true but 2 is false. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as 1000 rev/KWh. 3600 rev/KWh. 960 rev/KWh. 3750 rev/KWh. 1000 rev/KWh. 3600 rev/KWh. 960 rev/KWh. 3750 rev/KWh. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a moving iron meter, the deflecting torque is proportional to Squareroot of the measurand Square of the current through the coil Sine of the measurand Current through the coil Squareroot of the measurand Square of the current through the coil Sine of the measurand Current through the coil ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS