Process Control and Instrumentation In Bode plot, Φ vs ω is plotted on a/an __________ graph paper. Triangular Semi-log Ordinary Log-log Triangular Semi-log Ordinary Log-log ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh test Criterion is not applicable to systems with polynomial characteristic equation Can not determine as to how many roots of the characteristics equation have positive real roots Cannot be used to test the stability of a control system containing transportation lag Criterion provides information about the actual location of roots Criterion is not applicable to systems with polynomial characteristic equation Can not determine as to how many roots of the characteristics equation have positive real roots Cannot be used to test the stability of a control system containing transportation lag Criterion provides information about the actual location of roots ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury. 700 550 250 350 700 550 250 350 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The characteristic equation for the control system with a closed loop transfer function G₁/1 + G₂ is given by 1 + G₂ = 0. The characteristic equation for the control system Determines its stability All of these Depends only upon the open loop transfer function Is the same for set point or load changes Determines its stability All of these Depends only upon the open loop transfer function Is the same for set point or load changes 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 -π/2, 0 0, π/2 -π/2, π/2 - ∞, π/2 -π/2, 0 0, π/2 -π/2, π/2 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Gain margin is equal to the Gain in P controller Amplitude ratio Reciprocal of amplitude ratio Gain in P-I controller Gain in P controller Amplitude ratio Reciprocal of amplitude ratio Gain in P-I controller ANSWER DOWNLOAD EXAMIANS APP
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