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) nRT/P p/nRT V/nRT nRT/V nRT/P p/nRT V/nRT nRT/V ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1). W = 1, Kc = 13 W = 1/√14, Kc = 45/7√14 W = √(7/8), Kc = 45/4 W = √(7/6), Kc = 46/3 W = 1, Kc = 13 W = 1/√14, Kc = 45/7√14 W = √(7/8), Kc = 45/4 W = √(7/6), Kc = 46/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the __________ variable. Manipulated None of these Load Controlled Manipulated None of these Load Controlled ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Is 90° at the most Approaches 180° asymptotically Is 120° Is 30° Is 90° at the most Approaches 180° asymptotically Is 120° Is 30° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is Iron-constantan Platinum-platinum+rhodium Chromel-alumel Either A, B or C Iron-constantan Platinum-platinum+rhodium Chromel-alumel Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The temperature range for which copper resistance thermometer can be used is __________ °C 0 to 150 -200 to 150 500 to 900 350 to 750 0 to 150 -200 to 150 500 to 900 350 to 750 ANSWER DOWNLOAD EXAMIANS APP
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