Process Control and Instrumentation A negative gain margin expressed in decibels means a/an __________ system. Unstable Critically damped Stable None of these Unstable Critically damped Stable None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh stability method uses __________ loop transfer function. Either A or B Closed Neither A nor B Open Either A or B Closed Neither A nor B Open ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively 0° & 80° 32° & 80° 32° & 460° - 273° & 80° 0° & 80° 32° & 80° 32° & 460° - 273° & 80° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Nichol's chart deals with Closed loop values vs. open loop values Frequency response values of controllers R. vs. phase lag of first order R. vs. phase lag of second order Closed loop values vs. open loop values Frequency response values of controllers R. vs. phase lag of first order R. vs. phase lag of second order ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a 'contact' pyrometer? Infra red pyrometer Radiation pyrometer Resistance pyrometer Optical pyrometer Infra red pyrometer Radiation pyrometer Resistance pyrometer Optical pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury. 350 250 700 550 350 250 700 550 ANSWER DOWNLOAD EXAMIANS APP
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