Process Control and Instrumentation Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) V/nRT p/nRT nRT/P nRT/V V/nRT p/nRT nRT/P nRT/V ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of mercury in glass thermometer is based on the __________ of mercury with increase in temperature. Differential linear expansion Increase of thermal conductivity Increase of pressure Volumetric expansion Differential linear expansion Increase of thermal conductivity Increase of pressure Volumetric expansion ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The operation of a rotameter is based on Pressure at a stagnation point Pressure drop across a nozzle Variable flow area Rotation of a turbine Pressure at a stagnation point Pressure drop across a nozzle Variable flow area Rotation of a turbine ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value. 100 95 87.5 63.2 100 95 87.5 63.2 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation pH meter has Three cells Two cells One cell No cell Three cells Two cells One cell No cell ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a first order process with resistance R and capacitance C is 1/RC R + C R - C RC 1/RC R + C R - C RC ANSWER DOWNLOAD EXAMIANS APP
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