Process Control and Instrumentation Which of the following controllers has the least maximum deviation? P-I controller P-I-D controller P-controller P-D controller P-I controller P-I-D controller P-controller P-D controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following temperature measuring instruments need not touch the object whose temperature is being measured? Radiation/infrared pyrometer Thermo electric pyrometer Filled system thermometer Mercury in glass thermometer Radiation/infrared pyrometer Thermo electric pyrometer Filled system thermometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a second order instrument? Mercury in glass thermometer with covering Pressure gauge with one bellow, two tubes and a tank None of these Bare mercury in glass thermometer Mercury in glass thermometer with covering Pressure gauge with one bellow, two tubes and a tank None of these Bare mercury in glass thermometer 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. 250 700 350 550 250 700 350 550 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 A first order time lag Dead time system A first order system A second order system A first order time lag Dead time system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively 32° & 460° 32° & 80° 0° & 80° - 273° & 80° 32° & 460° 32° & 80° 0° & 80° - 273° & 80° ANSWER DOWNLOAD EXAMIANS APP
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