11. The transient response of a system is mainly due to :
12. ……………. is the reference input minus the primary feed back.
(a) Manipulated variable
(b) Zero sequence
(c) Actuating signal
(d) Primary feedback
13. Which one of the following is open loop ?
(a) The respiratory system of man
(b) A system for controlling the movement of the slide of a copying milling machine
(c) A thermostatic control
(d) Traffic light control
14. The term backlash is associate with :
(b) Induction relays
(c) Gear Trans
(d) Any of the above
15. With feed back ………. increases.
(a) system stability
(d) effects of disturbing signals
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