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Electronic Instrumentation and Control: Introduction to Control System Analysis
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Electronic Instrumentation and Control: Introduction to Control System Analysis
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25 Questions

1. A linear system at rest is subject to an input signal r(t)=1-e-t. The response of the system for t>0 is given by c(t)=1-e-2t. The transfer function of the system is:
2. A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
3. While solving signal flow graph using Mason's gain equation, what does the second letter in two subscript notation of '
4. Loop which do not possess any common node are said to be ___________ loops.
5. In a signal flow graph, nodes are represented by small _____
6. According to signal flow graph, which among the following represents the relationship between nodes by drawing a line between them?
7. Which of the following statements is not necessarily correct for open control system ?
8. The relationship between an input and output variable of a signal flow graph is given by the net gain between the input and output node is known as the overall______________
9. Which type of node comprises incoming as well as outgoing branches?
10. If the initial conditions for a system are inherently zero, what does it physically mean?
11. In signal flow graph, the product of all ______gains while going through a forward path is known as '
12. The following has tendency to oscillate.
13. In open loop system
14. A control system whose step response is -0.5(1+e-2t) is cascaded to another control block whose impulse response is e-t. What is the transfer function of the cascaded combination?
15. Signal flow graphs:
16. The output of the feedback control system must be a function of:
17. In continuous data systems:
18. Which of the following is an open loop control system ?
19. Where are the dummy nodes added in the branch with unity gain?
20. In a signal flow graph method, how is an overall transfer function of a system obtained?
21. Two loops are said to be non-touching only if no common ______exists between them.
22. A signal flow graph is the graphical representation of the relationships between the variables of set linear algebraic equations.
23. A transfer function has two zeroes at infinity. Then the relation between the numerator(N) and the denominator degree(M) of the transfer function is:
24. In closed loop control system, with positive value of feedback gain the overall gain of the system will
25. The principle of homogeneity and superposition are applied to:

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