Measurement and Instrumentation The moving coil-meters, damping is provided by damping vane in the airtight chamber. eddy current disk. the aluminium frame of the coil. the coil spring attached to the moving. damping vane in the airtight chamber. eddy current disk. the aluminium frame of the coil. the coil spring attached to the moving. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Stray thermal emfs. Errorneous standardisation. Stray magnetic fields. Ripples of the DC supply. Stray thermal emfs. Errorneous standardisation. Stray magnetic fields. Ripples of the DC supply. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In which of the transformer is the secondary nearly short circuited under normal operating condition? PT. Distribution transformer. CT. Power transformer. PT. Distribution transformer. CT. Power transformer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Most accurate measurement of unknown resistance will be by Potentiometer Wheatstone bridge Voltmeter and ammeter Ohmmeter Potentiometer Wheatstone bridge Voltmeter and ammeter Ohmmeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Electrostatic instruments are used as Both ammeter and voltmeter Ammeters only Voltmeters only Wattmeter only Both ammeter and voltmeter Ammeters only Voltmeters only Wattmeter only 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 1 µNm. 100 µNm. 200 µNm. 2 µNm. 1 µNm. 100 µNm. 200 µNm. 2 µNm. ANSWER DOWNLOAD EXAMIANS APP
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