Detailed SolutionWhich of the following is the definition of proportional band of a controller ?
Electrical control systems
The range of air output as measured variable varies from maximum to minimum
The range of measured variables from set value
The range of measured variables through which the air output changes from maximum to minimum
Any of the above E. None of the above
Answer is Right!
Answer is Wrong!
12. Regenerative feedback implies feedback with
oscillations
step input
negative sign
positive sign
Answer is Right!
Answer is Wrong!
Detailed SolutionRegenerative feedback implies feedback with
13. A closed loop system is distinguished from open loop system by which of the following ?
Servomechanism
Feedback
Output pattern
Input pattern
Answer is Right!
Answer is Wrong!
14. Any externally introduced signal affecting the controlled output is called a
feedback
stimulus
signal
gain control
Answer is Right!
Answer is Wrong!
Detailed SolutionAny externally introduced signal affecting the controlled output is called a
15. Which of the following devices is used for conversion of co-ordinates ?
Microsyn
Selsyn
Synchro-resolver
Synchro-transformer
Answer is Right!
Answer is Wrong!
Detailed SolutionWhich of the following devices is used for conversion of co-ordinates ?
16. Directly converts temperature into voltage.
Thermocouple
Potentiometer
Gear train
LVDT E. None of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionDirectly converts temperature into voltage.
17. Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ?
The system is relatively stable
The system is highly stable
The system is highly oscillatory
None of the above
Answer is Right!
Answer is Wrong!
18. The transfer function is applicable to which of the following ?
Linear and time-in variant systems
Linear and time-variant systems
Linear systems
Non-linear systems E. None of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe transfer function is applicable to which of the following ?
19. The transient response of a system is mainly due to
inertia forces
internal forces
stored energy
friction
Answer is Right!
Answer is Wrong!
Detailed SolutionThe transient response of a system is mainly due to
20. The initial response when tne output is not equal to input is called
Transient response
Error response
Dynamic response
Either of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe initial response when tne output is not equal to input is called