Question:

Lag compensation leads to:

A.

increases bandwidth

B.

attenuation

C.

increases damping factor

D.

second order

Answer» b. attenuation

Question:

The disadvantages of the error constants are:

A.

they do not give the information of the steady state error when the inputs are other than the three basic types

B.

error constant fail to indicate the exact manner in which the error function change with time.

C.

they do not give information of the steady state error and fail to indicate the exact manner in which the error function change with time

D.

they give information of the steady state error

Answer» c. they do not give information of the steady state error and fail to indicate the exact manner in which the error function change with time

Question:

Lead compensation leads to:

A.

increases bandwidth

B.

attenuation

C.

increases damping factor

D.

second order

Answer» a. increases bandwidth

Question:

Which one of the following methods can determine the closed loop system resonance frequency operation?

A.

root locus method

B.

nyquist method

C.

bode plot

D.

m and n circle

Answer» d. m and n circle

Question:

Which principle specifies the relationship between enclosure of poles & zeros by s- plane contour and the encirclement of origin by q(s) plane contour?

A.

argument

B.

agreement

C.

assessment

D.

assortment

Answer» a. argument

Question:

Consider the system represented by the equation given below. What would be the total phase value at ω = 0?

A.

-90°

B.

-180°

C.

-270°

D.

-360°

Answer» c. -270°

Question:

Scientist Bode have contribution in :

A.

asymptotic plots

B.

polar plots

C.

root locus technique

D.

constant m and n circle

Answer» a. asymptotic plots

Question:

Derivative output compensation:

A.

improvement in transient response

B.

reduction in steady state error

C.

reduction is settling time

D.

increase in damping constant

Answer» c. reduction is settling time

Question:

The input of a controller is

A.

sensed signal

B.

error signal

C.

desired variable value

D.

signal of fixed amplitude not dependent on desired variable value

Answer» b. error signal

Question:

If the system is represented by G(s) H(s) = k (s+7) / s (s +3) (s + 2), what would be its magnitude at ω = ∞?

A.

0

B.

∞ c) 7/10

C.

d) 21

Answer» a. 0