Process Control and Instrumentation Which of the systems having following transfer functions is stable? 1/(s² + 2s + 2) Exp(-20s)/(s² + 2s-l) 1/(s²-2s + 3) 1/(s²+ 2) 1/(s² + 2s + 2) Exp(-20s)/(s² + 2s-l) 1/(s²-2s + 3) 1/(s²+ 2) 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 Depends only upon the open loop transfer function Is the same for set point or load changes All of these Determines its stability Depends only upon the open loop transfer function Is the same for set point or load changes All of these Determines its stability ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Polarograph is meant for the analysis of Miscible liquids Gaseous mixture Isotopes Solids Miscible liquids Gaseous mixture Isotopes Solids ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Composition of alloys can be determined by Polarograph Refractrometer None of these Chromatograph Polarograph Refractrometer None of these Chromatograph 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. Exponential decrease Increase Decrease No change Exponential decrease Increase Decrease No change ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Gain margin is equal to the Amplitude ratio Gain in P controller Reciprocal of amplitude ratio Gain in P-I controller Amplitude ratio Gain in P controller Reciprocal of amplitude ratio Gain in P-I controller ANSWER DOWNLOAD EXAMIANS APP
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