Process Control and Instrumentation Which of the systems having following transfer functions is stable? Exp(-20s)/(s² + 2s-l) 1/(s²+ 2) 1/(s²-2s + 3) 1/(s² + 2s + 2) Exp(-20s)/(s² + 2s-l) 1/(s²+ 2) 1/(s²-2s + 3) 1/(s² + 2s + 2) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The closed loop pole of a stable second order system could be Both real and negative Both real and positive One real positive and the other real negative Complex conjugate with positive real parts Both real and negative Both real and positive One real positive and the other real negative Complex conjugate with positive real parts ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C? Optical pyrometer Thermocouples Radiation pyrometer Photoelectric pyrometer Optical pyrometer Thermocouples Radiation pyrometer Photoelectric pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For a feed back control system to be stable, the Poles of the closed loop transfer function should lie in the left half of the complex plane Poles of the closed loop transfer function should lie in the right half of the complex plane Bode plots of the corresponding open loop transfer function should monotoni-cally decrease Roots of the characteristic equation should be real Poles of the closed loop transfer function should lie in the left half of the complex plane Poles of the closed loop transfer function should lie in the right half of the complex plane Bode plots of the corresponding open loop transfer function should monotoni-cally decrease Roots of the characteristic equation should be real ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Typical specifications for design stipulates the gain margin and phase margin to be respectively > 1.7 and > 30° > 1.7 and < 30° < 1.7 and > 30° < 1.7 and < 30° > 1.7 and > 30° > 1.7 and < 30° < 1.7 and > 30° < 1.7 and < 30° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches ∞ 1 -1 ∞ 1 -1 ANSWER DOWNLOAD EXAMIANS APP
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