Process Control and Instrumentation Which of the following is a desirable characteristic of an instrument? High drift High fidelity High measuring lag Poor reproducibility High drift High fidelity High measuring lag Poor reproducibility ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ stability method uses open loop transfer function. Nyquist Mikhalov None of these Ruth Nyquist Mikhalov None of these Ruth ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The open loop transfer function of a control system is KR/(1 + TS) . This represents A first order system Dead time system A second order system A first order time lag A first order system Dead time system A second order system A first order time lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is 5π/12 π/12 π/3 π/6 5π/12 π/12 π/3 π/6 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a speed measuring instrument? All of these Psychrometer Stroboscope Tachometer All of these Psychrometer Stroboscope Tachometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Measurement of sub-zero Celcius temperature in industry is done most commonly by Bi-metallic thermometers Thermocouples Gas thermometers Resistance thermometers Bi-metallic thermometers Thermocouples Gas thermometers Resistance thermometers ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS