Measurement and Instrumentation The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are inclined at 30o. perpendicular. inclined at 60o. parallel. inclined at 30o. perpendicular. inclined at 60o. parallel. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The operating voltage of a megger is about 12 V 6 V 40 V 100 V 12 V 6 V 40 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pressure coil of a wattmeter should be connected on the supply side of the current coil when Load impedance is high None of these Supply voltage is low Load impedance is low Load impedance is high None of these Supply voltage is low Load impedance is low ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistor of 10kΩhms with 5% tolerance is connected in parallel with a 5kΩhms resistor of 10% tolerance. What is the tolerance limit for the parallel network? 8.33% 10% 6.67% 5% 8.33% 10% 6.67% 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure 5 volts, if one selects a 0-100 volt range voltmeter which is accurate with in ± 1%, then the error in this measurement may be up to ± 2.5% ± 1.5% ± 20% ± 7.5 % ± 2.5% ± 1.5% ± 20% ± 7.5 % ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is 200 V. 50 V. 25 V. 100 V. 200 V. 50 V. 25 V. 100 V. ANSWER DOWNLOAD EXAMIANS APP
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