CONTROL SYSTEM UNIT 1

Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output?

• Input Signal

• Outputsignal

• Error Signal

• Feedback Signal

Which among the following is not an advantage of an open loop system?

• Simplicity in construction & design

• Easy maintenance

• Rare problems of stability

• Requirement of system recalibration from time to time

Which notation represents the feedback path in closed loop system representation?

• b(t)

• c(t)

• e(t)

• r(t)

Which among the following represents an illustration of closed loop system?

• Automatic washing machine

• Automatic electric iron

• Bread toaster

• Electric hand drier

How is an output represented in the control systems?

• r(t)

• c(t)

• x(t)

• y(t)

in Which type of control system the control action is somehow dependent on the output?

• Closed loop system

• Semiclosed loop system

• Open system

• None of the above

What is the Control action 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

A good control system has all the following features except___________

• good stability

• slow response

• good accuracy

• sufficient power handling capacity

car is running at a constant speed of 50 km/h, which of the following is the feedbackelement for the driver ?

• Clutch

• Eyes

• Needle of the speedometer

• Steering wheel

An automatic toaster is an example of which type of control system?

• open

• Close

• Partially closed

• any of the above