Process Control and Instrumentation Which of the systems having following transfer functions is stable? 1/(s²+ 2) Exp(-20s)/(s² + 2s-l) 1/(s²-2s + 3) 1/(s² + 2s + 2) 1/(s²+ 2) Exp(-20s)/(s² + 2s-l) 1/(s²-2s + 3) 1/(s² + 2s + 2) 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 4 1 2 3 4 1 2 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of __________ is < 1. Second order system None of these Transportation lag First order system Second order system None of these Transportation lag First order system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is Chromel-alumel Platinum-platinum+rhodium Iron-constantan None of these Chromel-alumel Platinum-platinum+rhodium Iron-constantan None of these 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 120° Is 90° at the most Approaches 180° asymptotically Is 30° Is 120° Is 90° at the most Approaches 180° asymptotically Is 30° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For two non-interacting first order systems connected in series, the overall transfer function is the __________ of the individual transfer functions. Sum Difference Product Ratio Sum Difference Product Ratio ANSWER DOWNLOAD EXAMIANS APP
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