Measurement and Instrumentation The internal resistance of Weston standard cell is of order of 10 ohm. 1 ohm. 100 ohm. 1000 ohm. 10 ohm. 1 ohm. 100 ohm. 1000 ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An induction wattmeter can be used for Both DC and AC Any of the listed here Ac only Dc only Both DC and AC Any of the listed here Ac only Dc only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Jewels are used in instruments for the purpose of Suppressing noise Damping Torque control Bearing Suppressing noise Damping Torque control Bearing ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 250V voltmeter has a guaranteed accuracy of 2% of full scale reading. What is the percentage of error if it measures 150V? 2% 3.33% 5% 1% 2% 3.33% 5% 1% 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 true. 1 is true but 2 is false. Both 1 and 2 are false. 1 is false but 2 is true. Both 1 and 2 are true. 1 is true but 2 is false. Both 1 and 2 are false. 1 is false but 2 is true. 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 0 W. 25 W. 100 W. 50 W. 0 W. 25 W. 100 W. 50 W. ANSWER DOWNLOAD EXAMIANS APP