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 5π/12 π/6 π/3 π/12 5π/12 π/6 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ are analysed using a polarograph. Liquids Gases Solids Isotonic solutions Liquids Gases Solids Isotonic solutions ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which thermocouple can be used to measure a temperature of around 1400°C ? Copper-constantan None of these Aluminium-chromel Platinum-platinum+rhodium Copper-constantan None of these Aluminium-chromel Platinum-platinum+rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Alphatron measures pressure __________ microns. > 3 < 1 < 3 < 0.1 > 3 < 1 < 3 < 0.1 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Continuous measurement of moisture content of paper in paper industry is done by measuring the None of these Electrical resistance through the paper Magnetic susceptibility Thermal conductivity through the paper None of these Electrical resistance through the paper Magnetic susceptibility Thermal conductivity through the paper ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The operation of a rotameter is based on Rotation of a turbine Pressure drop across a nozzle Variable flow area Pressure at a stagnation point Rotation of a turbine Pressure drop across a nozzle Variable flow area Pressure at a stagnation point ANSWER DOWNLOAD EXAMIANS APP
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