Process Control and Instrumentation With increase in temperature, the electrical conductivity of the platinum used in the resistance thermometer Decreases Increases exponentially Increases Remains constant Decreases Increases exponentially Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by Increasing the diameter of the tube Accounting for the tube expansion Filling nitrogen under pressure in the stem Using steel tube in place of glass tube Increasing the diameter of the tube Accounting for the tube expansion Filling nitrogen under pressure in the stem Using steel tube in place of glass tube ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a Polarograph PH meter Polarimeter Chromatograph Polarograph PH meter Polarimeter Chromatograph 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 first order time lag Dead time system A second order system A first order system A first order time lag Dead time system A second order system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A negative gain margin expressed in decibels means a/an __________ system. Unstable Stable None of these Critically damped Unstable Stable None of these Critically damped ANSWER DOWNLOAD EXAMIANS APP
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