Computer control system
Digital data system
Stochastic control system
Adaptive control system
Answer is Right!
Answer is Wrong!
Detailed SolutionA control system working under unknown random actions is called
Electrical control systems
72. The phase lag produced by transportation relays
Is independent of frequency
Is inversely proportional to frequency
Increases linearly with frequency
Decreases linearly with frequency
Answer is Right!
Answer is Wrong!
Detailed SolutionThe phase lag produced by transportation relays
73. The output of a feedback control system must be a function of
reference and output
reference and input
input and feedback signal
output and feedback signal
Answer is Right!
Answer is Wrong!
Detailed SolutionThe output of a feedback control system must be a function of
74. Which of the following devices are commonly used as error detectors in instruments ?
Vernistats
Microsyns
Resolvers
Any of the above
Answer is Right!
Answer is Wrong!
75. A control system with excessive noise, is likely to suffer from
saturation in amplifying stages
loss of gain
vibrations
oscillations
Answer is Right!
Answer is Wrong!
Detailed SolutionA control system with excessive noise, is likely to suffer from
76. In open loop system
the control action depends on the size of the system
the control action depends on system variables
the control action depends on the input signal
the control action is independent of the output
Answer is Right!
Answer is Wrong!
77. An automatic toaster is a ______ loop control system.
open
closed
partially closed
any of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionAn automatic toaster is a ______ loop control system.
78. In liquid level and electrical system analogy, voltage is considered analogous to
head
liquid flow
liquid flow rate
none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionIn liquid level and electrical system analogy, voltage is considered analogous to
79. Is not a final control element.
Control valve
Potentiometer
Electropneumatic converter
Servomotor
Answer is Right!
Answer is Wrong!
80. If the gain of the critical damped system is increased it will behave as
oscillatory
critically damped
overdamped
underdamped E. none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionIf the gain of the critical damped system is increased it will behave as