Process Control and Instrumentation A first order system with unity gain and time constant τ is subjected to a sinusoidal input of frequency w = 1/τ. The amplitude ratio for this system is 0.25 1 1/√2 0.5 0.25 1 1/√2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Cascade control means On-off control Feed forward control More than one feed-back loop One feed-back loop On-off control Feed forward control More than one feed-back loop One feed-back loop ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches ∞ 1 -1 ∞ 1 -1 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function for a P-D controller is Kc(1+τD s) Kc(1 +1/τD s) Kc τD s Kc/τD s Kc(1+τD s) Kc(1 +1/τD s) Kc τD s Kc/τD s ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The open loop transfer function of a control system is KR/(1 + TS) . This represents A first order system A second order system Dead time system A first order time lag A first order system A second order system Dead time system A first order time lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Dilatometer is used to measure Strain Stress Contraction/expansion due to changes in temperature Deflection Strain Stress Contraction/expansion due to changes in temperature Deflection ANSWER DOWNLOAD EXAMIANS APP
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