A control system working under unknown random actions is called

A control system working under unknown random actions is called 

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Answer :

A control system working under unknown random actions is called stochastic control system.

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Which of the following control techniques available to the researcher controls for both known and unknown variables? a. Building the extraneous variable into the design b. Matching c. Random assignment d. Analysis of covariance

Description : Which of the following control techniques available to the researcher controls for both known and unknown variables? a. Building the extraneous variable into the design b. Matching c. Random assignment d. Analysis of covariance

Last Answer : c. Random assignment

The problem-solving agent with several immediate options of unknown value can decide what to do by just examining different possible sequences of actions that lead to states of known value, and then choosing the best sequence. This process of looking for such a sequence is called Search. a) True b) False

Description : The problem-solving agent with several immediate options of unknown value can decide what to do by just examining different possible sequences of actions that lead to states of known value, and then choosing the ... . This process of looking for such a sequence is called Search. a) True b) False

Last Answer : a) True

What is called an exploration problem? a) State and actions are unknown to the agent b) State and actions are known to the agent c) Only actions are known to agent d) None of the mentioned

Description : What is called an exploration problem? a) State and actions are unknown to the agent b) State and actions are known to the agent c) Only actions are known to agent d) None of the mentioned

Last Answer : a) State and actions are unknown to the agent

“Three gods, A, B, and C, are called, in some order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is completely random. You must determine the identities of A, B, and C by asking three yes-or-no questions, and each question must be posed to exactly one god. The gods understand English but will answer all questions in their own language. In their unknown language, the words for “yes” and “no” are “da” and “ja,” in some order. You do not know which word means which.” -Riddles

Description : Three gods, A, B, and C, are called, in some order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is completely random. You must ... are da and ja, in some order. You do not know which word means which. -Riddles

Last Answer : We're willing to bet that your brain feels pretty busted at this point. If you're ready to throw in the towel and hear the solution, we won't tell! Here are the three questions you ... start sorting out the solution with this 2008 paper, which claims to have the easiest answer to the brainteaser.

Three gods, A, B, and C, are called, in some order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is completely random. You must determine the identities of A, B, and C by asking three yes-or-no questions, and each question must be posed to exactly one god. The gods understand English, but will answer all questions in their own language. In their unknown language, the words for 'yes' and 'no' are 'da' and 'ja', in some order. You do not know which word means which. So, which questions would you ask to identify each god? And no, it’s not a trick question. As a matter of fact, there are multiple ways to get the correct answer. -Riddles

Description : Three gods, A, B, and C, are called, in some order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is completely random. ... a trick question. As a matter of fact, there are multiple ways to get the correct answer. -Riddles

Last Answer : 1. To god A: Does da' mean yes' if and only if you are True and if and only if B is Random? (We supposed A said, ja, making B True or False). 2. To god B: Does da mean yes' if and ... only if A is Random? Since B's True, he must say da, which means A is Random, leaving C to be False.

Heart attack occurs due to : (1) Bacterial attack on the heart (2) Stopping of heart beat (3) Lack of blood supply to the heart itself (4) Impairment of heart’s working due to unknown reasons

Description : Heart attack occurs due to : (1) Bacterial attack on the heart (2) Stopping of heart beat (3) Lack of blood supply to the heart itself (4) Impairment of heart’s working due to unknown reasons

Last Answer : (3) Lack of blood supply to the heart itself Explanation: A heart attack occurs if the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked. If blood) flow isn' ... plaque (plak) builds up inside the coronary arteries. These arteries supply oxygen-rich blood to the heart.

Heart attack occurs due to – (1) Bacterial attack on the heart (2) Stopping of heart beat (3) Lack of supply of blood to the heart itself (4) Impairment of heart's working due to unknown reasons

Description : Heart attack occurs due to – (1) Bacterial attack on the heart (2) Stopping of heart beat (3) Lack of supply of blood to the heart itself (4) Impairment of heart's working due to unknown reasons

Last Answer : (3) Lack of supply of blood to the heart itself Explanation: A heart attack occurs when blood flow to a part of your heart is blocked for a long enough time that part of the heart, muscle is damaged ... to the heart. If the blood flow is blocked, the heart is starved of oxygen and heart cells die.

The cause of Heart attack is: (1) bacteria (2) virus (3) lack of blood supply to the heart (4) impairment of heart's working due to unknown reason

Description : The cause of Heart attack is: (1) bacteria (2) virus (3) lack of blood supply to the heart (4) impairment of heart's working due to unknown reason

Last Answer : (3) lack of blood supply to the heart Explanation: Heart attack is the death of a segment of heart muscle caused by the loss of blood supply. It occurs when the blood flow that brings oxygen ... artery, one that supplies blood to the heart muscle, is blocked by a blood clot (coronary thrombosis).

The cause of Heart attack is: (1) bacteria (2) virus (3) lack of blood supply to the heart (4) impairment of heart’s working due to unknown reason

Description : The cause of Heart attack is: (1) bacteria (2) virus (3) lack of blood supply to the heart (4) impairment of heart’s working due to unknown reason

Last Answer :  lack of blood supply to the heart

Heart attack occurs due to : (1) Bacterial attack on the heart (2) Stopping of heart beat (3) Lack of blood supply to the heart itself (4) Impairment of heart’s working due to unknown reasons

Description : Heart attack occurs due to : (1) Bacterial attack on the heart (2) Stopping of heart beat (3) Lack of blood supply to the heart itself (4) Impairment of heart’s working due to unknown reasons

Last Answer :  Lack of blood supply to the heart itself

Draw the labeled block diagram of process control system and explain each block.

Description : Draw the labeled block diagram of process control system and explain each block.

Last Answer : Explanation - Process control system consists of process or plant, sensor, error detector, automatic Controller, actuator or control element. 1) Process or plant- process means some manufacturing sequence ... process which changes the process variable. Output of this block is denoted by u .

Explain the significance of the Laplace transform in control system.

Description : Explain the significance of the Laplace transform in control system.

Last Answer : Significance of Laplace Transform- * Laplace transform convert higher order integral differential equation into simple algebraic form. * Laplace transform converts the differential equation into an algebraic ... equations. * Laplace transform convert time domain to frequency domain (s-plane). 

The open loop control system is one in which _____.

Description : The open loop control system is one in which _____.

Last Answer : the output is independent of output

In a control system, the comparator measures the difference between

Description : In a control system, the comparator measures the difference between (a) output and input (b) output of controller and system (c) actual and desired performance (d) input and error signal  

Last Answer : B

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

A differentiator is not usually used in control system, because it : -

Description : A differentiator is not usually used in control system, because it : - (A) reduces damping  (B) increases error  (C) reduces gain margin  (D) increases input noise

Last Answer : A differentiator is not usually used in control system, because it : - increases input noise

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.

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

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°

For a type three-control system the asymptote at lower frequency will have a slope...

Description : For a type three-control system the asymptote at lower frequency will have a slope  A) – 6 db per octave B) – 18 db per octave C) – 20 db per octave D) – 60 db per octave

Last Answer : b

In a closed loop control system ...

Description : In a closed loop control system  (a) control action depends upon the output and also on the input command (b) output signal is fed back to be compared with the reference signal (c) the accuracy is better than in the open loop system (d) all of the above

Last Answer : In a closed loop control system control action depends upon the output and also on the input command , output signal is fed back to be compared with the reference signal , the accuracy is better than in the open loop system. 

In a closed-loop system in which the output is the speed of a motor, the output rate control can be used to_________.

Last Answer : In a closed-loop system in which the output is the speed of a motor, the output rate control can be used to limit the acceleration of the motor.

The first order control system, which is well designed, has a?

Description : The first order control system, which is well designed, has a?

Last Answer : The first order control system, which is well designed, has a large negative transfer function pole.

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.

A differentiator is usually not a part of a control system because it?

Last Answer : A differentiator is usually not a part of a control system because it increases input noise.

In a control system the output of the controller is given to?

Description : In a control system the output of the controller is given to?

Last Answer : In a control system the output of the controller is given to final control element.

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

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

Last Answer : A control system with excessive noise, is likely to suffer from saturation in amplifying stages.

_____is an open loop control system.

Description : _____is an open loop control system.

Last Answer : Field controlled D.C. motor is an open loop control system.

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.

An automatic toaster is a ______ loop control system.

Description : An automatic toaster is a ______ loop control system.

Last Answer : An automatic toaster is an open loop control system.

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.

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.

In an open loop control system?

Last Answer : In an open loop control system Output is independent of control input.

What are the advantages of open loop control system?

Description : What are the advantages of open loop control system?

Last Answer : Open loop control system are simple to design. Open loop control system are generally stable.

what is open loop and close loop control system?

Description : what is open loop and close loop control system?

Last Answer : A) In open loop system the input is independent         of output but output is depends on input. A-1. no feedback path in open loop s/m    -2. less accuracy than close loop s/m. Ex. Washing ...    -3. high accuracy. Ex. Air conditioner ( AC ), rocket launcher, radar          system, etc

A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His friend who has valid certificate of his own blood type, offers for blood donation without delay. What would have been the type of blood group of the donor friend? (a) Type B (b) Type AB (c) Type O (d) Type A

Description : A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His friend who has valid certificate of his own blood type, offers for blood donation ... of the donor friend? (a) Type B (b) Type AB (c) Type O (d) Type A

Last Answer : (d) Type A

Reflex actions in head region are under the control of------? A. Brain (Answer) B. Spinal cord

Description : Reflex actions in head region are under the control of------? A. Brain (Answer) B. Spinal cord

Last Answer : A. Brain (Answer)

The temperature, under thermal and electrical system analogy, is considered analogous to?

Description : The temperature, under thermal and electrical system analogy, is considered analogous to?

Last Answer : The temperature, under thermal and electrical system analogy, is considered analogous to voltage.

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.

Last Answer : This is one of the most common & simplest mode of controller. * It has to control two positions of control element, either on or off hence this mode is called as ON OFF controller, it is ... cycling. * The existence of such a neutral zone is an example of desirable hysteresis in a system.

The standard for long distance analog signal transmission in process control industry is

Description : The standard for long distance analog signal transmission in process control industry is (A) 4-20 mV (B) 0-20 mA (C) 4-20 mA (D) 0-5 V

Last Answer : The standard for long distance analog signal transmission in process control industry is 4-20 mA

In pneumatic control systems the control valve used as final control element converts

Description : In pneumatic control systems the control valve used as final control element converts 

Last Answer : In pneumatic control systems the control valve used as final control element converts pressure signal to position change.

Which one among the following statements regarding India's coal is not correct? [CDS 2012] (a) 98 percent of reserves of coal in India belongs to Gondwana period (b) Unknown amount of coal lies buried under the Ganga alluvium and the Deccan Trap (c) Bituminous coal is found in both lower Gondwana rocks and in Tertiary rocks (d) Gondwana coal is mainly found in the river valleys of Damodar, Mahanadi and Godavari

Description : Which one among the following statements regarding India's coal is not correct? [CDS 2012] (a) 98 percent of reserves of coal in India belongs to Gondwana period (b) Unknown amount of coal ... Tertiary rocks (d) Gondwana coal is mainly found in the river valleys of Damodar, Mahanadi and Godavari

Last Answer : Ans: (c)

Any allegation made orally or in writing to a magistrate, with view to his taking action under this code, that some person, whether known or unknown has committed an offence but not include a police report a) Complainant b) Report c) Complaint d) None of these

Description : Any allegation made orally or in writing to a magistrate, with view to his taking  action under this code, that some person, whether known or unknown has committed an  offence but not include a police report  a) Complainant b) Report c) Complaint d) None of these

Last Answer : c) 2(e)

Let x1(t) and x2(t) be periodic with fundamental periods T1 and T2 respectively. Under what

Description : Let x1(t) and x2(t) be periodic with fundamental periods T1 and T2 respectively. Under what condition be the sum x(t) = x1(t) + x2(t) be periodic ? (A) Only for T1 = T2 (B) Always periodic (C) For T1/T2 equal to a rational number (D) Not periodic

Last Answer : Let x1(t) and x2(t) be periodic with fundamental periods T1 and T2 respectively. Under what condition be the sum x(t) = x1(t) + x2(t) be periodic ? (A) Only for T1 = T2 (B) Always periodic (C) For T1/T2 equal to a rational number (D) Not periodic

Which of these actions would be encouraged under a capitalist system but discouraged under a mercantilist system?

Description : Which of these actions would be encouraged under a capitalist system but discouraged under a mercantilist system?

Last Answer : This image will answer your question sir.

Is it possible to solve a magic square made up of a system of unknown symbols?

Description : Is it possible to solve a magic square made up of a system of unknown symbols?

Last Answer : No. I could populate a 9×9 magic square with the letters A through I. You would never figure out what numbers were represented by the letters because a 9×9 magic square is not unique.

. A logon record tells us that, at a specific time: a. An unknown person logged into the system using the account b. The owner of a specific account logged into the system c. The account was used to log into the system d. None of the above

Description : . A logon record tells us that, at a specific time: a. An unknown person logged into the system using the account b. The owner of a specific account logged into the system c. The account was used to log into the system d. None of the above

Last Answer : c. The account was used to log into the system