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/6 π/12 5π/12 π/3 π/6 π/12 5π/12 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermistors are made of Nickel-chromium alloys Metal oxides Ultra pure metals Iron-copper alloys Nickel-chromium alloys Metal oxides Ultra pure metals Iron-copper alloys ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following can measure temperatures in the range of - 20 to 300°C ? Mercury in glass thermometer Vapor pressure thermometer Resistance thermometer None of these Mercury in glass thermometer Vapor pressure thermometer Resistance thermometer None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Pressure of 0.0001 absolute psi can be measured by __________ gauge Mcloid None of these Thermocouple Pirani Mcloid None of these Thermocouple Pirani ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their High viscosity index Low flash point Low thermal conductivity Low electrical conductivity High viscosity index Low flash point Low thermal conductivity Low electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ controller has the maximum stabilising time. PD PID PI P PD PID PI P ANSWER DOWNLOAD EXAMIANS APP
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