Editorial Staff

Adaptive Control 1. Which of the following programs is not a popular desktop publishing program? a) Adobe PageMaker b) Microsoft

Stability Analysis by Describing Functions 1. The characteristic equation of a feedback control system is given bys3+5s2+(K+6)s+K=0. In the root

Constructing Phase-Trajectories 1. In liquid level and electrical system analogy, voltage is considered analogous to : a) Head b) Liquid

Construction of Phase -Trajectories 1. Electrical time-constant of an armature-controlled dc servomotor is : a) Equal to mechanical time-constant b)

Stability of Nonlinear System – II 1. In a control system integral error compensation _______steady state error a) Increases b)

Stability of Nonlinear System 1. Stability of a system implies that : a) Small changes in the system input does

Common Physical Nonlinearities 1. The term backlash is associated with: a) Servomotors b) Induction relays c) Gear trains d) Tacho

Parameter Optimization 1. A conditionally stable system exhibits poor stability at : a) Low frequencies b) Reduced values of open

Output Regulator & the Tracking Problem 1. For output regulator problem in performance index the parameter which is set to

The Infinite Time Regulator Problem 1. In infinite time regulator for the final time is: a) t1 b) t0 c)