Question :
" A tachometer is used as an inner loop in a position control servo-system. What is the effect of feedback on the gain of the sub-loop incorporating tachometer and in the effective time constant of the system?"
1. " Both are reduced"
2. " Gain is reduced but the time constant is increased"
3. " Gain is increased but the time constant is reduced"
4. " Both are increased"
Answer :
1 - " Both are reduced"
|