Measurement and Instrumentation If the instrument is to have a wide range, the instrument should have Square-law scale Linear scale Exponential scale Logarithmic scale Square-law scale Linear scale Exponential scale Logarithmic scale ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a ballistic galvanometer, the deflecting torque is proportional to Sine of measured Square-root of current through coil The current through coil Square of current through coil Sine of measured Square-root of current through coil The current through coil Square of current through coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The circuit in figure is used to measure the power consumed by the load. The current coil and the voltage coil of the wattmeter have 0.02 Ω and 1000 Ω resistance respectively. The measured power compared to the load power will be 0.4% less. 0.2% less. 0.4 more. 0.2% more. 0.4% less. 0.2% less. 0.4 more. 0.2% more. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ? ± 1.5% ±0.5% ±3.5% ± 3.0% ± 1.5% ±0.5% ±3.5% ± 3.0% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when R1 = 2R2. R1 = R2/2. R1 = R2. R1 = 3R2. R1 = 2R2. R1 = R2/2. R1 = R2. R1 = 3R2. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following statement are correct in case of power factor meter? The restoring torque is provided by a controlling torque. Both B and C. The deflection is proportional to phase angle between field coil and crossed coil. It consist of two coils mounted at right angles to each other. The restoring torque is provided by a controlling torque. Both B and C. The deflection is proportional to phase angle between field coil and crossed coil. It consist of two coils mounted at right angles to each other. ANSWER DOWNLOAD EXAMIANS APP
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