Quiz 1 MCQ control
The gain at the breakaway point for the unity feedback system where G(s)H(s)=(K(s2+2))((s+3)(s+4))(K(s2+2))((s+3)(s+4)) is
- a. 17.8
- b. 1.78
- c. 27.8
- d. 0.178
The gain at the breakaway point for the unity feedback system where G(s)H(s)=
المسأله دي عاوز k
For G(s)H(s)=Ks(s+2)(s+3)Ks(s+2)(s+3) the coordinates of valid breakaway/in point is
- a. -0.785
- b. 2.55
- c. -2.55
- d. 0.785
For G(s)H(s)=Ks(s+2)(s+3)Ks(s+2)(s+3) the coordinates of valid breakaway/in point is
- a. -0.785
- b. 2.55
- c. -2.55
- d. 0.785
The range of K for closed-loop stability, with unity feedback, G(s)=\( \frac{(K(s+2))}{(s(s-1)(s+3))} \) is
- a. 1<k<100
- b. There is no value of K that will stabilize this system
- c. 0<K<100
- d. -100<K<100
The break in point for the unity feedback system where G(s)H(s)=(K(s+2)(s+1))((s−2)(s−1))(K(s+2)(s+1))((s−2)(s−1)) is at
- a. 0.141
- b. -14.1
- c. -1.41
- d. -141
midterm MCQ control
The breakaway point for G(s)H(s)=(K(s+3)(s+5))((s+1)(s−7))(K(s+3)(s+5))((s+1)(s−7)) is at
- a. -4
- b. -6
- c. 0.6
- d. 3.78
The gain at the breakaway point for the unity feedback system where G(s)H(s)=(K(s+2)(s+1))((s−2)(s−1))(K(s+2)(s+1))((s−2)(s−1)) is
- a. 30
- b. 0.30
- c. 0.03
- d. 3.0
Consider a point S = -2 + j3 in the s-plane. Then for a system with the open loop transfer function G(s)H(S) = K(s+3)(s+4)(s+1)(s+2)K(s+3)(s+4)(s+1)(s+2)?
- a. S is on root locus with k = 29
- b. none of the above
- c. S is on root locus with k = 2.9
- d. S is not on root locus
how many poles of the following function are in the right half-plane, in the left half-plane, and on the jw-axis: T(s)=(s2+4s−3)(s4+4s3+8s2+20s+15)(s2+4s−3)(s4+4s3+8s2+20s+15)
- a. 2rhp, 2lhp
- b. 2jw, 2lhp
- c. 1rhp, 3lhp
- d. 3rhp, 1jw
quiz 2 MCQ control
3. State space analysis is applicable for non-linear systems and for multiple input and output systems.
- a) True
- b) False
Answer: a
Explanation: State space analysis is the technique that used state variables and state model for the analysis and is applicable for non-linear systems and for multiple input and output systems.
The transfer function for the state representation of the continuous time LTI system:
dq(t)/dt=Aq(t)+Bx(t)
Y(t)=Cq(t)+Dx(t)
is given by:
- a)C(sI-A)-1B+D
- b)B(sI-A)-1B+D
- c)C(sI-A)-1B+A
- d)D(sI-A)-1B+C
Answer: a
Explanation: Transfer function which is ratio of Laplace output to the Laplace input when the initial conditions are zero and is calculated by using both the equations.
6. Which among the following constitute the state model of a system in addition to state equations?
- a) Input equations
- b) Output equations
- c) State trajectory
- d) State vector
Answer: b
Explanation: Output Equations constitute the state model of a system in addition to state equations and for the complete state model mainly input model, output model and state models are required.
Consider the network shown in fig. this system represented in state space representation The system state variables are
- a. iL , ic
- b. Vc, iL
- c. None of these
- d. iR1, IR2
Conventional control theory is applicable to ______ systems
- a. Time varying
- b. Non-linear
- c. MIMO
- d. SISO
1. Which among the following is a unique model of a system?
- a) Transfer function
- b) State variable
- c) Block diagram
- d) Signal flow graphs
Explanation: Transfer Function is defined as the ratio of the Laplace output to the Laplace input with the zero initial conditions and is a unique model of the system.
- a.
- b.
- c.
- d.
- a) State variables
- b) State vector
- c) State space
- d) State scalar
- View Answer
- a) It is applicable for linear and non-linear and variant and time-invariant system
- b) Analysis of MIMO system
- c) It takes initial conditions of the system into account
- d) All of the mentioned