Quiz No:57 Control System RRB , Coal India , PWD , Engineering diploma Level , PSC - Mahatmaacademy.com

Quiz No:57 Control System RRB , Coal India , PWD , Engineering diploma Level , PSC

1. Which of the following represents an analogous pair between electrical systems and pneumatic system?

 
 
 
 

2. Under force-current analogous, displacement is analogous to—

 
 
 
 

3. The inverse Laplace transform of1/s(s + 2) is-

 
 
 
 

4. Under force-voltage analogy reciprocal of capacitance is analogous to—

 
 
 
 

5. Laplace transform of 1 is—

 
 
 
 

6. Under thermal and electrical system analogy charge is considered analogous to—

 
 
 
 

7. Which of the following is the analogous pan-under force current analogy?

 
 
 
 

8. Laplace transform method of solution is applicable to equations containing—

 
 
 
 

9. When analogy between liquid level and electrical systems is drawn, voltage is considered as analogous to—

 
 
 
 

10. Under force-voltage analogy, viscous friction coefficient is analogous to—

 
 
 
 

11. A system with characteristic equation s3 + 14s2 + 56s + k = 0 will be stable if—

 
 
 
 

12. For the characteristic equation 2s3 + 4s2 +4s + 12 = 0 the number of roots with positive real parts is—

 
 
 
 

13. The number of roots with positive real parts for the polynomial s4 + 2s3 + 2s2 + 2s + 1 is—

 
 
 
 

14. The differential equation of an integrator is dy/dt=x the integrator is—

 
 
 
 

15. Routh Hurwitz Criterion gives—

 
 
 
 

16. The number of roots with positive real parts for the polynomial s3 + s2 – 2 is—

 
 
 
 

17. The transient response of a system is mainly due to—

 
 
 
 

18. Transfer function can be obtained from—

 
 
 
 

19. The transfer function is applicable to—

 
 
 
 

20. A zero order hold is used with sampled data system—

 
 
 
 

21. The octave frequency range is specified by—

 
 
 
 

22. The damping factor of a system is unity. The system is—

 
 
 
 

23. Which one of the following must have negative real parts for a stable system?

 
 
 
 

24. Which of the following is the source of nonlinearity ?

 
 
 
 

25. A differentiator is usually not a part of a control system because—