ISRO Scientist or Engineer Electrical 2018
For the following questions answer them individually
ISRO Scientist or Engineer Electrical 2018 - Question 1
For the system to be stable, in a negative feedback systems, with increase of feedback loops the range of gain (K)
ISRO Scientist or Engineer Electrical 2018 - Question 2
What is the impulse response for the system indicated below?
ISRO Scientist or Engineer Electrical 2018 - Question 3
The open loop transfer function of a unity feedback control system is $$G(s) = \frac{K}{(s + 2)(s + 1)(s^2 + 6s + 25)}$$. Determine the range of gain ‘K’ for the unity feedback control system to be stable.
ISRO Scientist or Engineer Electrical 2018 - Question 4
For the step response $$C(s) = \frac{10(s - 2)}{s(s^2 + 4s + 5)}$$ find initial and final value of C(s).
ISRO Scientist or Engineer Electrical 2018 - Question 5
What is the condition for the below system to be critically damped?
ISRO Scientist or Engineer Electrical 2018 - Question 6
Transfer function of two compensators are:
$$C_1 = \frac{100(S + 3)}{(S + 200)}$$ $$C_2 = \frac{S + 200}{100(S + 3)}$$
Which of the following statement is correct?
ISRO Scientist or Engineer Electrical 2018 - Question 7
In the system shown below, what is steady state error in unit ramp response?
ISRO Scientist or Engineer Electrical 2018 - Question 8
Typical root locus diagram of a system is shown below. Find the point where the system is critically damped.
ISRO Scientist or Engineer Electrical 2018 - Question 9
If a network consists of ‘n’ number of principle nodes and ‘b’ numbers of branches. Then, mesh analysis becomes simpler than nodal analysis if ‘n’ is greater than
ISRO Scientist or Engineer Electrical 2018 - Question 10
What is the equivalent resistance between the terminals A and B ?
