Measurement and Instrumentation Which of the following is a variable displacement transducer? tachometer potentiometer synchros None of these tachometer potentiometer synchros None of these 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 = R2/2. R1 = 3R2. R1 = R2. R1 = 2R2. R1 = R2/2. R1 = 3R2. R1 = R2. R1 = 2R2. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.84 0.73 1 0.65 0.84 0.73 1 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The difference between the indicated value and the true value of a quantity is Dynamic error Relative error Absolute error Gross error Dynamic error Relative error Absolute error Gross error ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are parallel. inclined at 60o. inclined at 30o. perpendicular. parallel. inclined at 60o. inclined at 30o. perpendicular. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The quantity 1/√(∈0 × μ0) in SI units has the speed of light. dimension LT-1. both ‘a’ and ‘b’. none of these. speed of light. dimension LT-1. both ‘a’ and ‘b’. none of these. ANSWER DOWNLOAD EXAMIANS APP
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