Process Control and Instrumentation A sinusoidal variation in the input passing through a linear first order system Becomes less oscillatory (frequency decreases) Becomes more oscillatory (frequency increases) Gets attenuated (magnitude decreases) Gets amplified (magnitude increases) Becomes less oscillatory (frequency decreases) Becomes more oscillatory (frequency increases) Gets attenuated (magnitude decreases) Gets amplified (magnitude increases) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the dynamic error in a critically damped second order instrument for a ramp input (AT)? 0.5 AT 1.5 AT √AT 2 AT 0.5 AT 1.5 AT √AT 2 AT ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation An amplitude ratio of 0.1 corresponds to __________ decibels. -10 20 -20 10 -10 20 -20 10 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a closed loop system, the process to be controlled is an integrating process with transfer function l/2s. The controller proposed to be used in an integral controller with transfer function 1/T₁s. When a step change in set point is applied to such a closed loop system, the controlled variable will exhibit Undamped response Underdamped response Overdamped response Unstable response Undamped response Underdamped response Overdamped response Unstable response 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 Flow rates of fluids Thermal conductivity of gases Very high temperature Flow rates of granular solids Flow rates of fluids Thermal conductivity of gases ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal well made of __________ gives the fastest speed of response, while measuring temperature by thermocouples. Vycor (a glass) Steel Inconel Nichrome Vycor (a glass) Steel Inconel Nichrome ANSWER DOWNLOAD EXAMIANS APP
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