Process Control and Instrumentation According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is 45° 90° 180° 0° 45° 90° 180° 0° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is H/G G/(1 + H) H(1 + G) G/H H/G G/(1 + H) H(1 + G) G/H ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following flow-metering instru-ments is an areameter? Venturimeter Rotameter Hot wire anemometer Pitot tube Venturimeter Rotameter Hot wire anemometer Pitot tube ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following controllers has maximum offset? P-I-D controller P-controller P-I controller P-D controller P-I-D controller P-controller P-I controller P-D controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following measurements can be made by the measurement of emf? Composition of complex ions All of these Degree of hydrolysis PH value Composition of complex ions All of these Degree of hydrolysis PH value ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation When the damping co-efficient (ξ) is unity, the system is Critically damped Overdamped Underdamped Highly fluctuating Critically damped Overdamped Underdamped Highly fluctuating ANSWER DOWNLOAD EXAMIANS APP
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