The Maximum phase shift that can be obtained by using a lead compensator with transfer function GC(s)=4(1+0.15) / (1 + 0.05s) is equal to

1.  15o

2.  30o

3.  45o

4.  60o

View Answer  
4
Correct Answer :

30o


Explanation :
No Explanation available for this question

A phase-lead compensator has the transfer function Gc(s)=10(1 + .04s) /(1 + 0.01s) The maximum phase angle lead provided by this compensator will occur at a frequency ωm is equal to

1.  50 rad/sec

2.  25 rad/sec

3.  10 rad/sec

4.  4 rad/sec

View Answer  
4
Correct Answer :

50 rad/sec


Explanation :
No Explanation available for this question

The phase lead compensation is used to

1.  increase rise time and decrease overshoot

2.  decrease both rise time and overshoot

3.  increase both rise time and overshoot

4.  decrease rise time and increase overshoot

View Answer  
4
Correct Answer :

decrease rise time and increase overshoot


Explanation :
No Explanation available for this question

With the help of a reactive compensator it is possible to have

1.  constant voltage operation only

2.  unity p.f. operation only

3.  both constant voltage and unity p.f.

4.  either constant voltage or, unity p.f

View Answer  
4
Correct Answer :

either constant voltage or, unity p.f


Explanation :
No Explanation available for this question

Maximum phase-lead of the compensator D(s) = (0.5s +1)/ (0.05s + 1) is

1.  52 deg at 4 rad/sec

2.  52 deg at 10 rad/see

3.  55 deg at 12 rad/sec

4.  none of these

View Answer  
4
Correct Answer :

none of these


Explanation :
No Explanation available for this question

For a long uncompensated line the limit to the line loading is governed by

1.  thermal limit

2.  voltage drop

3.  stability limit

4.  Corona loss

View Answer  
4
Correct Answer :

stability limit


Explanation :
No Explanation available for this question

Given a system represented by equations x=x+u and y [1 0]x The equivalent transfer function represention G(s) of the system is

1.  G(s)=1/ s2+ 5s + 2

2.  G(s)=1/s +3s+2

3.  G(s)=3/s2+3s+2

4.  G(s)=3/s3+2s2+2

View Answer  
4
Correct Answer :

G(s)=1/s +3s+2


Explanation :
No Explanation available for this question

Consider the following properties attributed to state model of a system 1. State model is unique 2. State model can be derived from the sys transfer function. 3. State model can be 'derived from time varies systems. Of these statements

1.  1, 2 and 3 are correct

2.  1 and 2 are correct

3.  2 and 3 correct

4.  1 and 3 are correct

View Answer  
4
Correct Answer :

2 and 3 correct


Explanation :
No Explanation available for this question

A shunt-reactor at 100 MVAr is-operated at 98% of its rated voltage and at 96% of its, rated freqnency. The reactive power absorbed by the reactor is

1.  98 MVAr

2.  104.02 MVAr

3.  96.04 MVAr

4.   100.04 MVAr

View Answer  
4
Correct Answer :

100.04 MVAr


Explanation :
No Explanation available for this question

State representation of a second order system is x1=-x1+u x2=x1-2x2+u Consider the following statements regarding t above system. :  1. The system is completely state controllable 2. If x1 the outfit, then the system is completely output controllable  3. If x2 is the Output, then the system is complete output controllable Of these statements

1.  1, 2 and 3 are correct

2.  1 and 2 are correct

3.  2 and 3 are correct

4.  1 and 3 are correct

View Answer  
4
Correct Answer :

2 and 3 are correct


Explanation :
No Explanation available for this question
Previous Next

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python