Process Control and Instrumentation Which of the following is a desirable characteristic of an instrument? High fidelity Poor reproducibility High drift High measuring lag High fidelity Poor reproducibility High drift High measuring lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A negative gain margin expressed in decibels means a/an __________ system. Critically damped Stable None of these Unstable Critically damped Stable None of these Unstable ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Psychrometer determines the Water of crystallisation Moisture content of solids Humidity of gases Hygroscopic nature of solids Water of crystallisation Moisture content of solids Humidity of gases Hygroscopic nature of solids ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an Optical pyrometer Either B or C Radiation pyrometer Chromel-alumel thermocouple Optical pyrometer Either B or C Radiation pyrometer Chromel-alumel thermocouple ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity? O₂ CO CO₂ N₂ O₂ CO CO₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are Air to close valve with the controller indirect acting Air to close valve with the controller direct acting Air to open valve with the controller direct acting Air to open valve with the controller indirect acting Air to close valve with the controller indirect acting Air to close valve with the controller direct acting Air to open valve with the controller direct acting Air to open valve with the controller indirect acting ANSWER DOWNLOAD EXAMIANS APP
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