Process Control and Instrumentation For a feed back control system to be stable, the Bode plots of the corresponding open loop transfer function should monotoni-cally decrease Poles of the closed loop transfer function should lie in the right half of the complex plane 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 Bode plots of the corresponding open loop transfer function should monotoni-cally decrease Poles of the closed loop transfer function should lie in the right half of the complex plane 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 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the sinusoidal response of a first order system is 180° 120° 90° 30° 180° 120° 90° 30° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is the dynamic characteristics of an instrument? Fidelity Dead zone Sensitivity Reproducibility Fidelity Dead zone Sensitivity Reproducibility ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A bolometer is Used for the measurement of thermal radiation An element which senses optical input and delivers thermal output Both A & B Here Neither A nor B Here Used for the measurement of thermal radiation An element which senses optical input and delivers thermal output Both A & B Here Neither A nor B Here ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Non-metallic diaphragm used as pressure sensor in instruments is generally made of Thick paper Synthetic rubber Bakelite Teflon Thick paper Synthetic rubber Bakelite Teflon ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to D⁴ D³ D² D D⁴ D³ D² D ANSWER DOWNLOAD EXAMIANS APP
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