Process Control and Instrumentation An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a PH meter Chromatograph Polarograph Polarimeter PH meter Chromatograph Polarograph Polarimeter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following flow-metering instru-ments is an areameter? Venturimeter Pitot tube Hot wire anemometer Rotameter Venturimeter Pitot tube Hot wire anemometer Rotameter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A stable system is the one None of these Which exhibits an unbounded response to a bounded input For which the output response is bounded for all bounded input Which satisfies the conditions for a servo problem None of these Which exhibits an unbounded response to a bounded input For which the output response is bounded for all bounded input Which satisfies the conditions for a servo problem ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation When the damping co-efficient (ξ) is unity, the system is Critically damped Highly fluctuating Underdamped Overdamped Critically damped Highly fluctuating Underdamped Overdamped ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object has varying emissivity Object and surrounding are at almost the same temperature Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object has varying emissivity Object and surrounding are at almost the same temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation If response of a control system is to be free of offset and oscillation, the most suitable controller is Proportional controller Proportional integral-derivative (PID) controller Proportional-integral (PI) controller Proportional-derivative(PD)controller Proportional controller Proportional integral-derivative (PID) controller Proportional-integral (PI) controller Proportional-derivative(PD)controller ANSWER DOWNLOAD EXAMIANS APP
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