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 π/12 π/3 π/6 5π/12 π/12 π/3 π/6 5π/12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Response of a linear control system for a change in set point is called Frequency response Servo problem Regulator problem Transient response Frequency response Servo problem Regulator problem Transient response ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Platinum resistance thermometer can be used upto antimony point which is __________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure. 630.74 961.93 1064.43 1261.93 630.74 961.93 1064.43 1261.93 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emission spectroscopy is used for Determining water purity Solids and metal analysis NOxdetermination Determination of CO₂ in gases Determining water purity Solids and metal analysis NOxdetermination Determination of CO₂ in gases ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The level of a liquid under pressure can be determined using Bubbler system Air-trap system Diaphragm box system Differential pressure manometer Bubbler system Air-trap system Diaphragm box system Differential pressure manometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A sinusoidal variation in the input passing through a linear first order system Gets amplified (magnitude increases) Becomes more oscillatory (frequency increases) Gets attenuated (magnitude decreases) Becomes less oscillatory (frequency decreases) Gets amplified (magnitude increases) Becomes more oscillatory (frequency increases) Gets attenuated (magnitude decreases) Becomes less oscillatory (frequency decreases) ANSWER DOWNLOAD EXAMIANS APP
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