Process Control and Instrumentation The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple. None of these Platinum-platinum/rhodium Iron-constantan Chromel-alumel None of these Platinum-platinum/rhodium Iron-constantan Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation On-off controllers are normally used for Temperature changes None of these Low loads Flow rate changes Temperature changes None of these Low loads Flow rate changes ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the Laplace transform of sin t ? S/(s² + 1) 1/(s² + 1) S/(s² - 1) 1/(s² - 1) S/(s² + 1) 1/(s² + 1) S/(s² - 1) 1/(s² - 1) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A first order system with unity gain and time constant τ is subjected to a sinusoidal input of frequency w = 1/τ. The amplitude ratio for this system is 1/√2 0.25 1 0.5 1/√2 0.25 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The operation of a rotameter is based on Rotation of a turbine Pressure at a stagnation point Variable flow area Pressure drop across a nozzle Rotation of a turbine Pressure at a stagnation point Variable flow area Pressure drop across a nozzle ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A barometer measures the __________ pressure. Absolute as well as gauge Absolute Dynamic Gauge Absolute as well as gauge Absolute Dynamic Gauge ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS