Process Control and Instrumentation Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an __________ pyrometer. Radiation None of these Photoelectric Optical Radiation None of these Photoelectric Optical ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Approaches 180° asymptotically Is 90° at the most Is 120° Is 30° Approaches 180° asymptotically Is 90° at the most Is 120° Is 30° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Hot wire anemometer is used for the measurement of Very high temperature Flow rates of granular solids Thermal conductivity of gases Flow rates of fluids Very high temperature Flow rates of granular solids Thermal conductivity of gases Flow rates of fluids ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire. No change Increase Decrease Exponential decrease No change Increase Decrease Exponential decrease ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is -180° -45° 45° -90° -180° -45° 45° -90° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value. 63.2 87.5 100 95 63.2 87.5 100 95 ANSWER DOWNLOAD EXAMIANS APP
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