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 = √(7/8), Kc = 45/4 W = 1, Kc = 13 W = 1/√14, Kc = 45/7√14 W = √(7/6), Kc = 46/3 W = √(7/8), Kc = 45/4 W = 1, Kc = 13 W = 1/√14, Kc = 45/7√14 W = √(7/6), Kc = 46/3 ANSWER DOWNLOAD EXAMIANS APP
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/V nRT/P p/nRT V/nRT nRT/V nRT/P p/nRT V/nRT ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The unit step response of the transfer function 1/(s² + 2s + 3) Has a damped oscillatory characteristics Is overdamped Is unstable Has a non-zero slope at the origin Has a damped oscillatory characteristics Is overdamped Is unstable Has a non-zero slope at the origin ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Stalagmometer is used for the measurement of Optical activity Surface tension Refractive index Kinematic viscosity Optical activity Surface tension Refractive index Kinematic viscosity ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Dead zone is the Same as transportation lag Same as time constant Maximum change in the variable that does not change the reading of the instrument None of these Same as transportation lag Same as time constant Maximum change in the variable that does not change the reading of the instrument None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere? Iron-constantan Chromel-alumel Copper-constantan Platinum-platinum + rhodium Iron-constantan Chromel-alumel Copper-constantan Platinum-platinum + rhodium ANSWER DOWNLOAD EXAMIANS APP
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