Process Control and Instrumentation Which of the following is a desirable characteristic of an instrument? High measuring lag Poor reproducibility High fidelity High drift High measuring lag Poor reproducibility High fidelity High drift ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The unit step response of the transfer function 1/(s² + 2s + 3) Has a damped oscillatory characteristics Is unstable Has a non-zero slope at the origin Is overdamped Has a damped oscillatory characteristics Is unstable Has a non-zero slope at the origin Is overdamped ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is -90° -180° 45° -45° -90° -180° 45° -45° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C. 0.1 0.0001 0.001 0.01 0.1 0.0001 0.001 0.01 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Presence of a small amount of water in the organic systems can be determined by the __________ method. Emission spectroscopy Dielectric constant end loss factor Electrical conductivity Polarimetry Emission spectroscopy Dielectric constant end loss factor Electrical conductivity Polarimetry ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system? < 1 1 >1 None of these < 1 1 >1 None of these ANSWER DOWNLOAD EXAMIANS APP