CONTROL SYSTEMS QUIZ

A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage?

2.5 Volt.

1.0 Volt.

2.0 Volt.

1.5 Volt.

TRUE ANSWER : ?
YOUR ANSWER : ?

Find the relation of damped natural frequency (ωd)

(ωn) √(1-ζ²)

(ωn) √(1-1/ζ²)

(ωn) √(1-4ζ²)

(ωn) √(1-2ζ²)

TRUE ANSWER : ?
YOUR ANSWER : ?

The transfer function of a system given by The system is

a critically damped.

an under damped.

unstable.

an over damped.

TRUE ANSWER : ?
YOUR ANSWER : ?

Time response for a second order system depends on the value of τ. If τ= 0 then the system is called as

critically damped system.

undamped system.

under damped system.

over damped system.

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the full form of SPICE ?

Stimulated program with integrated circuit arrangement.

Simulated program with integrated circuit analysis.

Sequential program with integrated circuit analysis.

None of these.

TRUE ANSWER : ?
YOUR ANSWER : ?

A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = -1 + j1 will lie on the root locus of the system is

5

10

6.5

4

TRUE ANSWER : ?
YOUR ANSWER : ?

A function of one or more variables which conveys information about the nature of physical phenomenon is called

interference.

signal.

noise.

system.

TRUE ANSWER : ?
YOUR ANSWER : ?

For a unity feedback control system open loop transfer function then position error constant is

0.

20.

40.

infinity.

TRUE ANSWER : ?
YOUR ANSWER : ?

Angle condition for complimentary root locus or inverse root locus is

± (2q + 1) 180°

± (2q) 360°

± (2q + 1) 360°

± (2q) 180°

TRUE ANSWER : ?
YOUR ANSWER : ?

When deriving the transfer function of linear element

both initial conditions and loading are taken into account.

initial conditions are assumed to be zero and the element is assumed to be not loaded.

initial conditions are taken into account but the element is assumed to be not loaded.

initial conditions are assumed to be zero but loading is taken into account.

TRUE ANSWER : ?
YOUR ANSWER : ?