Introduction of integral action in the forward path of a unity feedback system results in a

Introduction of integral action in the forward path of a unity feedback system results in a 

A) Marginally stable system B) System with no steady state error C) System with increased stability margin D) System With better speed of response
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Introduction of integral action in the forward path of a unity feedback system results in a System with no steady state error 

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For a system with derivative feedback, forward path transfer is G(s) = I / (s2 + s + 1) and feedback path

Description : For a system with derivative feedback, forward path transfer is G(s) = I / (s2 + s + 1) and feedback path transfer is H(s) = Ks. What is the value of K to obtain a critically-damped closed loop transient response.  (a) 0.5 (b) 0.707 (c) 1 (d) 1.414

Last Answer : For a system with derivative feedback, forward path transfer is G(s) = I / (s2 + s + 1) and feedback path transfer is H(s) = Ks. What is the value of K to obtain a critically-damped closed loop transient response.  (a) 0.5 (b) 0.707 (c) 1 (d) 1.414

Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is

Description : Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is

Last Answer : Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is 16

A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the

Description : A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system (A) crosses the real axis at +0.1 (B) crosses the real axis at -0.1. (C) crosses the imaginary axis at -0.1 (D) crosses the imaginary axis at +0.1

Last Answer : A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system crosses the real axis at -0.1.

In the Bode plot of a unity feedback control system, the value of phase of G(jw) at the gain cross -over...

Description : In the Bode plot of a unity feedback control system, the value of phase of G(jw) at the gain cross -over frequency is - 125°.. The phase margin of the system is (a) - 125° (b) - 55° (c) 55° (d) 125°

Last Answer : In the Bode plot of a unity feedback control system, the value of phase of G(jw) at the gain cross -over frequency is - 125°.. The phase margin of the system is 55°

In a control system integral error compensation _______ steady state error.

Description : In a control system integral error compensation _______ steady state error.

Last Answer : In a control system integral error compensation minimizes steady state error.

The damping factor of a particular system is unity, the system response will be

Description : The damping factor of a particular system is unity, the system response will be

Last Answer : The damping factor of a particular system is unity, the system response will be critically damped

What type of feedback loop is most common in nature and which more commonly results from human action?

Description : What type of feedback loop is most common in nature and which more commonly results from human action?

Last Answer : Need answer

For a stable feedback control system, the phase margin is

Description : For a stable feedback control system, the phase margin is  a) always positive b) always negative c) may be positive or negative d) always greater than 180o

Last Answer : For a stable feedback control system, the phase margin is always positive

For a feedback control system of type 2, the steady error for a rap input is

Description : For a feedback control system of type 2, the steady error for a rap input is  A) Infinite B) Constant C) Zero D) Indeterminate

Last Answer : For a feedback control system of type 2, the steady error for a rap input is Zero 

For a 2nd order feedback control system, the peak resonance magnitude should be Mp ≤ 1.15. Hence the

Description : For a 2nd order feedback control system, the peak resonance magnitude should be Mp ≤ 1.15. Hence the damping ratio (δ) is  (a) 0.1 (d) 0.5 (c) 0.707 (d) 1

Last Answer : For a 2nd order feedback control system, the peak resonance magnitude should be Mp ≤ 1.15. Hence the damping ratio (δ) is 0.5

In order to regulate steady state error to zero, in a negative feedback control system, one employs

Description : In order to regulate steady state error to zero, in a negative feedback control system, one employs

Last Answer : In order to regulate steady state error to zero, in a negative feedback control system, one employs Integral control

Negative feedback in a closed-loop control system DOES NOT

Description : Negative feedback in a closed-loop control system DOES NOT (A) reduce the overall gain (B) reduce bandwidth (C) improve disturbance rejection (D) reduce sensitivity to parameter variation

Last Answer : Negative feedback in a closed-loop control system DOES NOT reduce bandwidth

With negative feedback, the system stability and system gain respectively

Description : With negative feedback, the system stability and system gain respectively (a) Increases and increases (b) Increases and decreases (c) Decreases and increases (d) Decreases and decreases

Last Answer : increases and decreasses

The transient response, with feedback system,?

Description : The transient response, with feedback system,?

Last Answer : The transient response, with feedback system, decays quickly.

The output of a feedback control system must be a function of?

Description : The output of a feedback control system must be a function of?

Last Answer : The output of a feedback control system must be a function of reference and output.

In closed loop control system, with positive value of feedback gain the overall gain of the system will

Description : In closed loop control system, with positive value of feedback gain the overall gain of the system will

Last Answer : In closed loop control system, with positive value of feedback gain the overall gain of the system will decrease.

The transfer function of a system is 10/(1+s) when operating as a unity feedback system, the steady state error to a step input will be a) 0 b) 1/11 c) 10 d) Infinity

Description : The transfer function of a system is 10/(1+s) when operating as a unity feedback system, the steady state error to a step input will be a) 0 b) 1/11 c) 10 d) Infinity

Last Answer : Ans: 1/11

The unit circle of the Nyquist plot transforms into unity or 0 dB line of the amplitude plot of the Bode diagram for

Description : The unit circle of the Nyquist plot transforms into unity or 0 dB line of the amplitude plot of the Bode diagram for

Last Answer : The unit circle of the Nyquist plot transforms into unity or 0 dB line of the amplitude plot of the Bode diagram for all frequencies

increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Description : increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Last Answer : Ans: A

The effect of negative feedback on distortion and bandwidth is A) Both distortion and bandwidth get

Description : The effect of negative feedback on distortion and bandwidth is A) Both distortion and bandwidth get decreased B) Both distortion and bandwidth get increased C) Distortion is reduced and bandwidth is increased D) Distortion is increased and bandwidth is decreased 

Last Answer : The effect of negative feedback on distortion and bandwidth is Distortion is reduced and bandwidth is increased

With feedback _____ increases.

Description : With feedback _____ increases.

Last Answer : With feedback system stability increases.

_________is the reference input minus the primary feedback.

Description : _________is the reference input minus the primary feedback.

Last Answer : Actuating signal is the reference input minus the primary feedback.

Regenerative feedback implies feedback with?

Description : Regenerative feedback implies feedback with?

Last Answer : Regenerative feedback implies feedback with a positive sign.

For a feedback amplifier, if the loop gain is much greater than unity, the closed loop gain will be equal to

Description : For a feedback amplifier, if the loop gain is much greater than unity, the closed loop gain will be equal to

Last Answer : For a feedback amplifier, if the loop gain is much greater than unity, the closed loop gain will be equal to inverse of feedback factor

The characteristic equation for a closed loop system with forward gain K is s4 + 4s3 + 8s2 + 6s + K = 0.

Description : The characteristic equation for a closed loop system with forward gain K is s4 + 4s3 + 8s2 + 6s + K = 0. The critical gain value Kc for stability should not exceed  (a) 3.25 (b) 9.75 (c) 13.0 (d) 23.3

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Critical path moves along the activities having total float as (a) Positive (b) Negative ( c) Zero (d) Unity

Description : Critical path moves along the activities having total float as (a) Positive (b) Negative ( c) Zero (d) Unity

Last Answer : ( c) Zero

Which neural network allows feedback signal? (A) Feed forward Neural Network (B) Recurrent Neural Network (C) Both(A) & (B) (D) None of the Above

Description : Which neural network allows feedback signal? (A) Feed forward Neural Network (B) Recurrent Neural Network (C) Both(A) & (B) (D) None of the Above

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What is an auto-associative network? a) a neural network that contains no loops b) a neural network that contains feedback c) a neural network that has only one loop d) a single layer feed-forward neural network with pre-processing

Description : What is an auto-associative network? a) a neural network that contains no loops b) a neural network that contains feedback c) a neural network that has only one loop d) a single layer feed-forward neural network with pre-processing

Last Answer : b) a neural network that contains feedback

What is perceptron? a) a single layer feed-forward neural network with pre-processing b) an auto-associative neural network c) a double layer auto-associative neural network d) a neural network that contains feedback

Description : What is perceptron? a) a single layer feed-forward neural network with pre-processing b) an auto-associative neural network c) a double layer auto-associative neural network d) a neural network that contains feedback

Last Answer : a) a single layer feed-forward neural network with pre-processing

An auto-associative network is: a) a neural network that contains no loops b) a neural network that contains feedback c) a neural network that has only one loop d) a single layer feed-forward neural network with pre-processing

Description : An auto-associative network is: a) a neural network that contains no loops b) a neural network that contains feedback c) a neural network that has only one loop d) a single layer feed-forward neural network with pre-processing

Last Answer : b) a neural network that contains feedback

A perceptron is: a) a single layer feed-forward neural network with pre-processing b) an auto-associative neural network c) a double layer auto-associative neural network d) a neural network that contains feedback

Description : A perceptron is: a) a single layer feed-forward neural network with pre-processing b) an auto-associative neural network c) a double layer auto-associative neural network d) a neural network that contains feedback

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A two-cavity klystron without a feedback path will operate as what type of circuit?

Description : A two-cavity klystron without a feedback path will operate as what type of circuit?

Last Answer : Amplifier.

Which of the following best describes the operational audit? a. It requires the constant review by internal auditors of the administrative controls as they relate to operations othe company. b. It concentrates on implementing financial and accounting control in a newly organized company. c. It concentrates on seeking out aspects of operations in which waste would be reduced by the introduction of controls. d. It attempts and is designed to verify the fair presentation of a company's results of operations.f

Description : Which of the following best describes the operational audit? a. It requires the constant review by internal auditors of the administrative controls as they relate to operations ofthe company. b. It ... attempts and is designed to verify the fair presentation of a company's results of operations.

Last Answer : It concentrates on seeking out aspects of operations in which waste would be reduced by the introduction of controls

The core elements of dissertation are (A) Introduction; Data Collection; Data Analysis; Conclusions and Recommendations (B) Executive Summary; Literature review; Data gathered; Conclusions; Bibliography (C) Research Plan; Research Data; Analysis; References (D) Introduction; Literature Review; Research Methodology; Results; Discussion and Conclusion

Description : The core elements of dissertation are (A) Introduction; Data Collection; Data Analysis; Conclusions and Recommendations (B) Executive Summary; Literature review; Data gathered; Conclusions; ... ; References (D) Introduction; Literature Review; Research Methodology; Results; Discussion and Conclusion

Last Answer : A

Explain the application of proportional integral and derivative action?

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A control system in which the control action is somehow dependent on the output is known as

Description : A control system in which the control action is somehow dependent on the output is known as?

Last Answer : A control system in which the control action is somehow dependent on the output is known as Closed loop system.

When Clorox introduced bleach in a no-drip bottle, the firm was taking action consistent with its product being in the __________ stage of product life cycle. A)introduction B)growth C)maturity D)decline

Description : When Clorox introduced bleach in a no-drip bottle, the firm was taking action consistent with its product being in the __________ stage of product life cycle. A)introduction B)growth C)maturity D)decline

Last Answer : C)maturity

State the principle of ON-OFF control action. Write its standard equation & define neutral zone.

Description : State the principle of ON-OFF control action. Write its standard equation & define neutral zone.

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Once the logic of a network is laid out, the project manager will conduct a forward pass and a backward pass through the network. This will provide information regardiC. Resource shortages, high risk activities D. The high risk activities, non-critical pathng ______ and will identify the________. A. The total duration of the project, critical path B. The slack for each activity, high risk activities

Description :  Once the logic of a network is laid out, the project manager will conduct a forward  pass and a backward pass through the network. This will provide information regarding  ______ and will identify ... C. Resource shortages, high risk activities D. The high risk activities, non-critical path

Last Answer : A. The total duration of the project, critical path

An example of feedback inhibition is (A) Allosteric inhibition of hexokinase by glucose6-phosphate (B) Cyanide action on cytochrome (C) Sulpha drug on folic acid synthesizer bacteria (D) Reaction between succinic dehydrogenase and succinic acid

Description : An example of feedback inhibition is (A) Allosteric inhibition of hexokinase by glucose6-phosphate (B) Cyanide action on cytochrome (C) Sulpha drug on folic acid synthesizer bacteria (D) Reaction between succinic dehydrogenase and succinic acid

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Feedback inhibition of enzyme action is affected by (A) Enzyme (B) Substrate (C) End products (D) None of these

Description : Feedback inhibition of enzyme action is affected by (A) Enzyme (B) Substrate (C) End products (D) None of these

Last Answer : Answer : C

Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above

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Last Answer : all above

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Last Answer : B) When the blood becomes dilute, ADH is no longer released from the hypothalamus

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Description : For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in (A) Increased economy (B) Decreased economy (C) Lower capacity (D) No effect on economy

Last Answer : (A) Increased economy

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Description : For hot feed, forward feeding as compared to backward feeding results in __________ economy. (A) Increased (B) Decreased (C) No effect on (D) None of these

Last Answer : (A) Increased

This passage may be summarized as (1) In career planning, it is important to involve oneself in cultural/sports activities as much as working hard or acquiring new skills.' (2) ‘Before making a career choice, one should learn to prioritize career options and use one's personality, interests, abilities, aspirations, strengths and weaknesses to plan and decide the most viable option. (3) ‘In choosing a career, it is important n o t to allow anyone to tell us that we are good for nothing, because our personality, interests, abilities, aspirations, strengths and weaknesses will help us decide the most viable career options for ourselves.' (4) ‘A good career choice results when you follow traditional professions and move along a well-planned path.

Description : This passage may be summarized as (1) In career planning, it is important to involve oneself in cultural/sports activities as much as working hard or acquiring new skills.' (2) Before ... A good career choice results when you follow traditional professions and move along a well-planned path.

Last Answer : (2) ‘Before making a career choice, one should learn to prioritize career options and use one's personality, interests, abilities, aspirations, strengths and weaknesses to plan and decide the most viable option

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Description : How do action and reactions forces move a swimmer forward in the water?

Last Answer : the action is the swimmer moving his arms nad leges , thereaction is him moving forwards

Surging basically implies A. Unsteady, periodic and reversed flow B. Forward motion of air at a speed above sonic velocity C. The surging action due to the blast of air produced in a compressor D. Forward movement of aircraft

Description : Surging basically implies A. Unsteady, periodic and reversed flow B. Forward motion of air at a speed above sonic velocity C. The surging action due to the blast of air produced in a compressor D. Forward movement of aircraft

Last Answer : ANSWER : A

Beats phenomenon occurs when a vibrating system is subjected to two different frequencies which are A) Quite different B) Equal C) Slightly different D) Integral multiple of each other

Description : Beats phenomenon occurs when a vibrating system is subjected to two different frequencies which are A) Quite different B) Equal C) Slightly different D) Integral multiple of each other

Last Answer : C) Slightly different

Which is an integral part of any microcomputer system and its primary purpose is to hold program and data: a. Memory unit b. Register unit c. A and B d. None of these

Description : Which is an integral part of any microcomputer system and its primary purpose is to hold program and data: a. Memory unit b. Register unit c. A and B d. None of these

Last Answer : a. Memory unit