Process Control and Instrumentation A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is -45° 45° -180° -90° -45° 45° -180° -90° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For an input forcing function, X(t) = 2t², the Laplace transform of this function is 2/s² 4/s² 4/s³ 2/s³ 2/s² 4/s² 4/s³ 2/s³ ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same Speed of response Temperature measuring range (- 40°C to 450°C) All of these Accuracy (± 1% of span) Speed of response Temperature measuring range (- 40°C to 450°C) All of these Accuracy (± 1% of span) 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 V/nRT nRT/P p/nRT nRT/V V/nRT nRT/P p/nRT ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation When a bare thermocouple is covered by a protective sheath, the response becomes Faster and non-oscillatory Slower and non-oscillatory Faster and oscillatory Slower and oscillatory Faster and non-oscillatory Slower and non-oscillatory Faster and oscillatory Slower and oscillatory ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K(s + 1)/2(2s + 1)(3s + 1) will have a definite number of loci for variation of K from 0 to ∞. The number of loci is 3 1 4 2 3 1 4 2 ANSWER DOWNLOAD EXAMIANS APP
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