CE Quiz 3 - Control of the Effects of Disturbance Signals

Regenerative feedback implies feedback with

• Oscillations

• Step input

• Negative sign

• Positive sign

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

A control system with excessive noise, is likely to suffer from

• Saturation in amplifying stages

• Loss of gain

• Vibrations

• Oscillations

Zero initial condition for a system means

• Input reference signal is zero

• Zero stored energy

• Initial movement of moving parts

• System is at rest and no energy is stored in any of its components

Transfer function of a system is used to calculate which of the following?

• The order of the system

• The time constant

• The output for any given input

• The steady state gain

The band width, in a feedback amplifier.

• Remains unaffected

• Decreases by the same amount as the gain increase

• Increases by the same amount as the gain decrease

• Decreases by the same amount as the gain decrease

On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend?

• Frequency

• Loop gain

• Forward gain

• All of the mentioned

The transient response, with feedback system,

• Rises slowly

• Rises quickly

• Decays slowly

• Decays quickly

The second derivative input signals modify which of the following?

• The time constant of the system

• Damping of the system

• The gain of the system

• The time constant and suppress the oscillations