Process Control and Instrumentation Pyrometry refers to the measurement of temperature Which is of higher magnitude All of these Directly With the mercurial thermometer upto 350°C Which is of higher magnitude All of these Directly With the mercurial thermometer upto 350°C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their Low electrical conductivity Low flash point Low thermal conductivity High viscosity index Low electrical conductivity Low flash point Low thermal conductivity High viscosity index ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase margin is equal to 180° - phase lag Phase lag - 180° Phase lag + 90° Phase lag + 180° 180° - phase lag Phase lag - 180° Phase lag + 90° Phase lag + 180° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The level of a liquid under pressure can be determined using Air-trap system Differential pressure manometer Bubbler system Diaphragm box system Air-trap system Differential pressure manometer Bubbler system Diaphragm box system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is 68 54 36 12 68 54 36 12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is π/3 π/12 π/6 5π/12 π/3 π/12 π/6 5π/12 ANSWER DOWNLOAD EXAMIANS APP