Which one of the following statements are true of a type 1 system having unit gain in the forward path and a unity feedback? 1. Positional error constant Kp is equal to infinity 2. Acceleration error constant Ka is equal to zero 3. Steady-state error ess to a unit step displacement input is equal to one. Select the correct answer using the codes given below

Which one of the following statements are true of a type 1 system havi

1.	Which one of the following statements are true of a type 1 system having unit gain in the forward path and a unity feedback? 1. Positional error constant Kp is equal to infinity 2. Acceleration error constant Ka is equal to zero 3. Steady-state error ess to a unit step displacement input is equal to one. Select the correct answer using the codes given below
A.	1, 2 and 3
B.	1 and 2
C.	2 and 3
D.	1 and 3
Answer» C. 2 and 3

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