MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Control Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Number of roots of characteristic equation is equal to the number of ______________ |
| A. | Branches |
| B. | Root |
| C. | Stem |
| D. | Poles |
| Answer» B. Root | |
| 2. |
WHICH_OF_THE_FOLLOWING_STATEMENTS_ARE_CORRECT??$ |
| A. | Root locus is for the negative feedback systems |
| B. | Complementary root locus is for the positive feedback systems |
| C. | Root locus is for the negative feedback and Complementary root locus is for the positive feedback systems |
| D. | Complementary root locus is for the negative feedback systems |
| Answer» D. Complementary root locus is for the negative feedback systems | |
| 3. |
Number of roots of characteristic equation is equal to the number of _____________? |
| A. | Branches |
| B. | Root |
| C. | Stem |
| D. | Poles |
| Answer» B. Root | |
| 4. |
Consider the following statements regarding root loci: |
| A. | All root loci start from the respective poles of G(s) H(s) |
| B. | All root loci end at the respective zeros of G(s) H(s) or go to infinity |
| C. | The root loci are symmetrical about the imaginary axis of the s-plane |
| D. | All root loci start and end from the respective poles of G(s) H(s) or go to infinity |
| Answer» C. The root loci are symmetrical about the imaginary axis of the s-plane | |
| 5. |
Routh Hurwitz criterion is better than root locus. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Root locus is used to calculate: |
| A. | Marginal stability |
| B. | Absolute stability |
| C. | Conditional stability |
| D. | Relative stability |
| Answer» E. | |
| 7. |
The addition of open loop poles pulls the root locus towards: |
| A. | The right and system becomes unstable |
| B. | Imaginary axis and system becomes marginally stable |
| C. | The left and system becomes unstable |
| D. | The right and system becomes unstable |
| Answer» E. | |
| 8. |
While increasing the value of gain K, the system becomes |
| A. | Less stable |
| B. | More stable |
| C. | Unstable |
| D. | Absolute stable |
| Answer» B. More stable | |
| 9. |
The main objective of drawing root locus plot is : |
| A. | To obtain a clear picture about the open loop poles and zeroes of the system |
| B. | To obtain a clear picture about the transient response of feedback system for various values of open loop gain K |
| C. | To determine sufficient condition for the value of ‘K’ that will make the feedback system unstable |
| D. | Both b and c |
| Answer» E. | |
| 10. |
Root locus of s(s+2)+K(s+4) =0 is a circle. What are the coordinates of the center of this circle? |
| A. | -2,0 |
| B. | -3,0 |
| C. | -4,0 |
| D. | -5,0 |
| Answer» D. -5,0 | |