# What will happen in a stable control system backlash?

Contents

## What will happen in a stable control system backlash?

In stable control, systems backlash is the form of the error that may cause low level of oscillations and hence can be useful sometimes as it increases the damping.

## Which control system does not have a stability problem *?

Explanation: Open loop control system are the systems which have no feedback and cannot be used to obtain the desired response and non-linearities does not cause malfunctioning.

## Which of the following is not the feature of the modern control system?

1. Which of the following is not the feature of modern control system? Explanation: For a good control system the speed of response and stability must be high and for the slow and sluggish response is not used and undesirable.

## Which of the following control systems have unpredictable & non repeatable?

Explanation: Stochastic control systems are those who have unpredictable and non-repeatable response due to involvement of random parameters.

## What is backlash in control system?

Backlash refers to the angle that the output shaft of a gearhead can rotate without the input shaft moving.

## What is backlash in a motion control system?

In mechanical engineering, backlash, sometimes called lash, play, or slop, is a clearance or lost motion in a mechanism caused by gaps between the parts.

## Which of the following should be done to make an unstable system stable?

Which of the following should be done to make an unstable system stable? Explanation: The gain of the system should be increased to make an unstable system stable and for positive feedback of the system the gain is more and for the negative feedback the gain is reduced for which the stable system can become unstable.

## Which one of the following effect in the system is not caused by negative feedback?

Which one of the following effect in the system is not caused by negative feedback? Explanation: Distortion refers to the error in the open loop system and it has many oscillations in the output and is reduced in case of negative feedback.

## In which of following system output has no effect on control action?

1)Open loop control system: Any physical system which does not automatically correct the variation in its output is called an open loop system or control system in which the output quantity has no effect upon the input quantity are called open loop control system.

## What is a stable system Mcq?

Explanation: Stability of the system implies that small changes in the system input, initial conditions, and system parameters does not result in large change in system output. 2. A linear time invariant system is stable if : a) System in excited by the bounded input, the output is also bounded.

## Which of the following elements is not used in an automatic control system?

In an automatic control system which of the following elements is not used? Explanation: In an automatic control system oscillator is not used because the oscillator increases the oscillations but our aim is to reduce the oscillations and hence oscillator is not used.

## Which among the following is a disadvantage of modern control theory?

Which among the following is a disadvantage of modern control theory? Explanation: Modern control theory is also not best suited in every respect it has also some disadvantages and the major disadvantage is that it requires computational work.

## Which one of the following is the most likely reason for large overshoot in a control system?

Which one of the following is the most likely reason for large overshoot in a control system? Explanation: Large overshoot refers to the maximum peak in the response of the closed loop system and this is mainly due to the high positive correcting torque.

## Which of the following is the characteristics of negative feedback control system?

Negative feedback in a control system reduces the overall gain and increases stability. It reduces the sensitivity of output to input variation, distortion, and noise reduction. It improves bandwidth and input and output impedances (reducing impedance and increasing bandwidth which are desired in most cases)

## Which controller is used for stability and speed consideration?

A PID controller is generally used in industrial control applications to regulate temperature, flow, pressure, speed, and other process variables.

## What happens if you have too much backlash in differential?

This distance is application-specific* and is critically important on all differentials because insufficient backlash causes the gears to bind, while excessive backlash causes excessive mechanical wear. Note that both inadequate and excessive backlash can cause varying mechanical noises.

## What is backlash and how its effects are transmitted throughout a machine?

Backlash, a clearance between mating gear teeth, is built into speed reducers to let the gears mesh without binding and to provide space for a film of lubricating oil between the teeth. This prevents overheating and tooth damage.

## What is backlash error?

Backlash error: If by reversing the direction of rotation of the thimble, the tip of the screw does not start moving in the opposite direction immediately but remains stationary for a part of rotation; it is called backlash error. Reason: It happens due to wear and tear of the screw threads.