Consider the following statements with reference to the block diagram of a control system given in the figure 1. For G2 = 0, the system is open-loop. 2. For G1 = 0, the system is closed-loop. 3. For G2 = H = 1, the system is closed-loop Of these statements

Consider the following statements with reference to the block diagram

1.	Consider the following statements with reference to the block diagram of a control system given in the figure 1. For G2 = 0, the system is open-loop. 2. For G1 = 0, the system is closed-loop. 3. For G2 = H = 1, the system is closed-loop Of these statements
A.	1, 2 and 3 are correct
B.	1 and 2 are correct
C.	2 and 3 are correct
D.	1 and 3 are correct
Answer» D. 1 and 3 are correct

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Consider the following statements with reference to the block diagram of a control system given in the figure 1. For G2 = 0, the system is open-loop. 2. For G1 = 0, the system is closed-loop. 3. For G2 = H = 1, the system is closed-loop Of these statements

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