Measurement and Instrumentation For handling greater currents induction watt-meters are used in conjunction with Potential transformers Current transformers Power transformers Either of the above Potential transformers Current transformers Power transformers Either of the above 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% ±3.5% ± 3.0% ±0.5% ± 1.5% ±3.5% ± 3.0% ±0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When the pointer of an indicating instrument comes to rest in the final deflected position, ______ Only deflecting torque acts None of the listed here Only controlling torque acts Both deflecting and controlling torques act Only deflecting torque acts None of the listed here Only controlling torque acts Both deflecting and controlling torques act ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the quantity consists of unit as kg m/sec ? Speed Momentum Impulse Acceleration Speed Momentum Impulse Acceleration ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following quantities consists of S.I. unit as Hertz? Frequency Force Charge Power Frequency Force Charge Power 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 = 3R2. R1 = R2. R1 = 2R2. R1 = R2/2. R1 = 3R2. R1 = R2. ANSWER DOWNLOAD EXAMIANS APP
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