Measurement and Instrumentation To measure ac as well as dc power, we use Induction wattmeter None of the listed here Dynamometer wattmeter Sometimes induction and sometimes dynamometer wattmeter Induction wattmeter None of the listed here Dynamometer wattmeter Sometimes induction and sometimes dynamometer wattmeter 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 = 3R2. R1 = R2. R1 = R2/2. R1 = 2R2. R1 = 3R2. R1 = R2. R1 = R2/2. R1 = 2R2. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When the pointer of an indicating instrument comes to rest in the final deflected position, ______ None of the listed here Only controlling torque acts Only deflecting torque acts Both deflecting and controlling torques act None of the listed here Only controlling torque acts Only deflecting torque acts Both deflecting and controlling torques act ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A galvanometer has Spring coil damping Air friction damping Fluid friction damping Eddy current damping Spring coil damping Air friction damping Fluid friction damping Eddy current damping ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ± 2.5% ±3.5% ± 1.5% ± 1% ± 2.5% ±3.5% ± 1.5% ± 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation PMMC type instruments normally use Air friction damping Eddy current damping Fluid friction damping None of these Air friction damping Eddy current damping Fluid friction damping None of these ANSWER DOWNLOAD EXAMIANS APP
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