Related Questions

Compared to an open-loop system, a closed-loop control system is:
A more accurate
B more complex
C more stable
D All of the above
E None of the above
An electric toaster is an electric ..........
A Sort
B Kinkd
C goods
D appliance
In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is
A $$\frac{{\text{G}}}{{1 + {\text{H}}}}$$
B $$\frac{{\text{H}}}{{1 + {\text{G}}}}$$
C $$\frac{{\text{G}}}{{\text{H}}}$$
D $$\frac{{\text{H}}}{{\text{G}}}$$
A closed loop system is distinguished from open loop system by which of the following ?
A Servomechanism
B Feedback
C Output pattern
D Input pattern
In an automatic control system which of the following elements is not used ?
A Error detector
B Final control element
C Sensor
D Oscillator
In closed loop control system, with positive value of feedback gain the overall gain of the system will
A Decrease
B Increase
C Be unaffected
D Exponentially increase
What are the three important manipulations done in a for loop on a loop variable?
A Updation, Incrementation, Initialization
B Initialization,Testing, Updation
C Testing, Updation, Testing
D Initialization,Testing, Incrementation
Which of the following devices is necessarily required for automatic temperature control in a furnace?
A Thermostat
B Thermocouple
C Autotransformer
D Heating elements of variable resistance material
Which of the following is an open loop control system?
A Ward Leonard control
B Metadyne
C Stroboscope
D Field controlled D.C. motor
In an open loop control system
A Output is independent of control input
B Output is dependent on control input
C Only system parameters have effect on the control output
D None of the mentioned

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