Measurement and Instrumentation What is the approximate input impedance of a CRO? 10 MΩ 0 1 MΩ 100 MΩ 10 MΩ 0 1 MΩ 100 MΩ 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. This is to have full deflection when 100V is measured. What is the value of series resistor to be used? 100 K ohms 99.99 K ohms 99.99 ohms 100 ohms 100 K ohms 99.99 K ohms 99.99 ohms 100 ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The thermocouple instrument will measure Voltage Current Flux None of these Voltage Current Flux None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures Reactive power of R phase Active power in R phase Power proportional to 3 phase power if the load is balanced Active power of Y phase Reactive power of R phase Active power in R phase Power proportional to 3 phase power if the load is balanced Active power of Y phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the name of physical quantities which are independent of each other? Fundamental quantity None of these Numerical quantity Derived quantity Fundamental quantity None of these Numerical quantity Derived quantity ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 1 mA meter is to be converted to 1 A ammeter. The meter resistance is 100 Ω. The value of shunt resistance 1000 Ω. 0.1001 Ω. 0.001 Ω. 100 Ω. 1000 Ω. 0.1001 Ω. 0.001 Ω. 100 Ω. ANSWER DOWNLOAD EXAMIANS APP
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