A. final control element
B. amplifier
C. comparator
D. sensor
F. none of the above
Related Mcqs:
- A controller, essentially, is a________________?
A. sensor
B. clipper
C. comparator
D. amplifier - Which of the following is the definition of proportional band of a controller ?
A. The range of air output as measured variable varies from maximum to minimum
B. The range of measured variables from set value
C. The range of measured variables through which the air output changes from maximum to minimum
D. Any of the above
F. None of the above - The capacitance, in force-current analogy, is analogous to_____________?
A. momentum
B. velocity
C. displacement
D. mass - In liquid level and electrical system analogy, voltage is considered analogous to_____________?
A. head
B. liquid flow
C. liquid flow rate
D. none of the above - In electrical-pneumatic system analogy the current is considered analogous to_____________?
A. velocity
B. pressure
C. air flow
D. air flow rate - An increase in gain, in most systems, leads to_____________?
A. smaller damping ratio
B. larger damping ratio
C. constant damping ratio
D. none of the above - Spring constant in force-voltage analogy is analogous to_____________?
A. capacitance
B. reciprocal of capacitance
C. current
D. resistance - Any externally introduced signal affecting the controlled output is called a______________?
A. feedback
B. stimulus
C. signal
D. gain control - 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 - 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
