A. Closed loop system
B. Semiclosed loop system
C. Open system
D. None of the above
Related Mcqs:
- By which of the following the control action is determined when a man walks along a path ?
A. Brain
B. Hands
C. Legs
D. Eyes - Any externally introduced signal affecting the controlled output is called a______________?
A. feedback
B. stimulus
C. signal
D. gain control - The initial response when tne output is not equal to input is called_____________?
A. Transient response
B. Error response
C. Dynamic response
D. Either of the above - The output of a feedback control system must be a function of_________________?
A. reference and output
B. reference and input
F. input and feedback signal
D. output and feedback signal - In a control system the output of the controller is given to_____________?
A. final control element
B. amplifier
C. comparator
D. sensor
F. none of the above - Which of the following is the output of a thermocouple ?
A. Alternating current
B. Direct current
C. A.C. voltage
D. D.C. voltage
F. None of the above - If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is_____________?
A. not necessarily stable
B. stable
C. unstable
D. always unstable
F. any of the above - A signal other than the reference input that tends to affect the value of controlled variable is known as_________________?
A. disturbance
B. command
C. control element
D. reference input - As a result of introduction of negative feedback which of the following will not decrease ?
A. Band width
B. Overall gain
C. Distortion
D. Instability - When the initial conditions of a system are specified to be zero it implies that the system is______________?
A. at rest without any energy stored in it
B. working normally with reference input
C. working normally with zero reference input
D. at rest but stores energy
