Measurement and Instrumentation Which one of the following meters has maximum loading effect on the circuit under measurement ? 10 MΩ/volt 100 Ω/volt 1 MΩ/volt 1000 Ω/volt 10 MΩ/volt 100 Ω/volt 1 MΩ/volt 1000 Ω/volt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For power measurement of three phase circuit by two wattmeter method, when the value of power factor is less than 0.5 lagging One of the wattmeters will read zero Pressure coil of the wattmeter will become ineffective. One of the wattmeter connections will have to be reversed Both give the same readings One of the wattmeters will read zero Pressure coil of the wattmeter will become ineffective. One of the wattmeter connections will have to be reversed Both give the same readings ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A thermometer having first order dynamics is subjected to a sudden temperature change of 30oc to 150oc. If it has he time constant of 5 sec, what temperature will be indicated by after 5 sec? 105.6o. 63.25o. 30o. 150o. 105.6o. 63.25o. 30o. 150o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The scale of a rectifier instrument is Non-linear Either linear or non linear Linear None of the listed here Non-linear Either linear or non linear Linear None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be 500Hz 100Hz 1kHz 50Hz 500Hz 100Hz 1kHz 50Hz ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following meter is most suitable for measuring radio frequency currents? Moving - coil meter. VTVM. Moving - iron meter. Thermocouple meter. Moving - coil meter. VTVM. Moving - iron meter. Thermocouple meter. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS