Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Thermocouple Moving iron Hot wire Dynamometer Thermocouple Moving iron Hot wire Dynamometer ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A Lissajous pattern on an oscilloscope has 5 horinzontal tangencies and 2 vertical tangencies. The frequency of horizontal input is 100 Hz. The frequency of the vertical will be 400 Hz. 500 Hz. 250 Hz. 625 Hz. 400 Hz. 500 Hz. 250 Hz. 625 Hz. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used? 49.99 Ohms 1 Ohm 1/49.99 ohms 2 Ohms 49.99 Ohms 1 Ohm 1/49.99 ohms 2 Ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following is a variable displacement transducer? None of these synchros potentiometer tachometer None of these synchros potentiometer tachometer 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 Both give the same readings Pressure coil of the wattmeter will become ineffective. One of the wattmeter connections will have to be reversed One of the wattmeters will read zero Both give the same readings Pressure coil of the wattmeter will become ineffective. One of the wattmeter connections will have to be reversed ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A CRO probe has an impedance of 500 kΩ in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in figure. The measured voltage will be 4.54 V. 5 V. 4.38 V. 3.53 V. 4.54 V. 5 V. 4.38 V. 3.53 V. ANSWER DOWNLOAD EXAMIANS APP
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