Process Control and Instrumentation Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an Either B or C Radiation pyrometer Optical pyrometer Chromel-alumel thermocouple Either B or C Radiation pyrometer Optical pyrometer Chromel-alumel thermocouple ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation If response of a control system is to be free of offset and oscillation, the most suitable controller is Proportional integral-derivative (PID) controller Proportional-derivative(PD)controller Proportional-integral (PI) controller Proportional controller Proportional integral-derivative (PID) controller Proportional-derivative(PD)controller Proportional-integral (PI) controller Proportional controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a composition measuring instrument? Mass spectrometer Polarograph Thermal conductivity cell Hot wire anemometer Mass spectrometer Polarograph Thermal conductivity cell Hot wire anemometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C. 750 500 250 1000 750 500 250 1000 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The frequency response of a first order system, has a phase shift with lower and upper bounds given by -π/2, 0 0, π/2 - ∞, π/2 -π/2, π/2 -π/2, 0 0, π/2 - ∞, π/2 -π/2, π/2 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of a __________ is 1. Second order system First order system None of these Transportation lag Second order system First order system None of these Transportation lag ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS