Process Control and Instrumentation A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency. This is __________ criterion. None of these Routh stability Nyquist Bode stability None of these Routh stability Nyquist Bode stability ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a 'contact' pyrometer? Optical pyrometer Radiation pyrometer Infra red pyrometer Resistance pyrometer Optical pyrometer Radiation pyrometer Infra red pyrometer Resistance pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is never used as an element of industrial resistance thermometer? Lead 30% iron + 70% nickel Copper Nickel Lead 30% iron + 70% nickel Copper Nickel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a variable area flow meter? Rotameter Piston type meter Magnetic flow meter Orifice and tapered plug meter Rotameter Piston type meter Magnetic flow meter Orifice and tapered plug meter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Stroboscope is used for the measurement of Depression of freezing point Liquid level under pressure Frequency of light Rpm of a flywheel Depression of freezing point Liquid level under pressure Frequency of light Rpm of a flywheel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the Laplace transform of impulse input having magnitude 'X' ? X² X 1/X 1 X² X 1/X 1 ANSWER DOWNLOAD EXAMIANS APP
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