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

What type of feedback loop is most common in nature and which more commonly results from human action?
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A bidirectional feedback loop links computer modelling with: a. artificial science b. heuristic processing c. human intelligence d. cognitive science

Description : A bidirectional feedback loop links computer modelling with: a. artificial science b. heuristic processing c. human intelligence d. cognitive science

Last Answer : d. cognitive science

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

Description : 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

Last Answer : Introduction of integral action in the forward path of a unity feedback system results in a System with no steady state error 

Could twitter, friendfeed, and other text status services cause a eternal feedback loop between them?

Description : Could twitter, friendfeed, and other text status services cause a eternal feedback loop between them?

Last Answer : What do you mean? Where updating your Twitter would update your FriendFeed, which would update your Twitter, which would update your FriendFeed, which would update your Twitter, which would update your ... of abuse limiting in place to ensure that a flurry of the same update couldn't happen.

In which system we get feedback? a.Open-loop system b.Machine control system c.Closed-loop system d.None of the above

Description : In which system we get feedback? a.Open-loop system b.Machine control system c.Closed-loop system d.None of the above

Last Answer : c.Closed-loop system

In the illustrated amplifier, the RESET potentiometer A1R2 sets the stability of the control loop by changing the reset time constant. As the potentiometer is turned clockwise _________. EL-0060 A. the gain is increased B. the stability is increased by slowing the response time C. feedback is increased to the summing point at terminal 5 D. response time is increased decreasing stability

Description : In the illustrated amplifier, the RESET potentiometer A1R2 sets the stability of the control loop by changing the reset time constant. As the potentiometer is turned clockwise _________. EL-0060 A. ... is increased to the summing point at terminal 5 D. response time is increased decreasing stability

Last Answer : Answer: B

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

Computers that control processes accept data in a continuous a) data traffic pattern b) data highway c) infinite loop d) feedback loop e) None of these 44. What refers to a

Description : Computers that control processes accept data in a continuous a) data traffic pattern b) data highway c) infinite loop d) feedback loop e) None of these 44. What refers to a

Last Answer : c) infinite loop

select the correct response from the choices given in the parentheses. Q-20. In a closed-loop configuration the output signal is determined by (the input signal, the feedback signal, both).

Description : select the correct response from the choices given in the parentheses. Q-20. In a closed-loop configuration the output signal is determined by (the input signal, the feedback signal, both).

Last Answer : Both the input signal and the feedback signal.

In a typical velocity servo block diagram what device is placed in the feedback loop that is not present in the position servo?

Description : In a typical velocity servo block diagram what device is placed in the feedback loop that is not present in the position servo?

Last Answer : Tachometer.

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 negative feedback loop returning a voltage to the input raised the input impedance and making the circuit a better

Description : A negative feedback loop returning a voltage to the input raised the input impedance and making the circuit a better

Last Answer : A negative feedback loop returning a voltage to the input raised the input impedance and making the circuit a better voltage sensor

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

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

An OP amp has an open loop gain of 1,00,000. If the feedback fraction is 0.02, the approximate closed loop...

Description : An OP amp has an open loop gain of 1,00,000. If the feedback fraction is 0.02, the approximate closed loop gain is (a) 1 (b) 1,00,000 (c) 50 (d) 0.02

Last Answer : The closed loop gain Ag = G/(1+G*f) Where G is the open loop gain and f is the feedback fraction  So Ag = 49.975

A phase-locked loop (PLL) is a feedback circuit consisting of a

Last Answer : A phase-locked loop (PLL) is a feedback circuit consisting of a phase detector, low-pass filter, VCO.

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.

What type of heat exchangers are most commonly used for a large-scale plant-cooling loop using seawater as the utility?

Description : What type of heat exchangers are most commonly used for a large-scale plant-cooling loop using seawater as the utility?

Last Answer : Commonly known as a secondary cooling loop or SECOOL, a closed loop water system is circulated through a processing plant near a sea. Process heat is transferred into the closed loop water and ... debris to clear the strainer. This method has been used for many years with great success.

Of the following common problems of the upper extremities, which results from entrapment of the median nerve at the wrist? a) Carpal tunnel syndrome Carpal tunnel syndrome is commonly due to repetitive hand activities.

Description : Of the following common problems of the upper extremities, which results from entrapment of the median nerve at the wrist? a) Carpal tunnel syndrome Carpal tunnel syndrome is commonly due to ... syndrome Impingement syndrome is associated with the shoulder and may progress to a rotator cuff tear.

Last Answer : a) Carpal tunnel syndrome Carpal tunnel syndrome is commonly due to repetitive hand activities.

Which of the following medications is categorized as a loop diuretic? a) Furosemide (Lasix) Lasix is commonly used in the treatment of cardiac failure.

Description : Which of the following medications is categorized as a loop diuretic? a) Furosemide (Lasix) Lasix is commonly used in the treatment of cardiac failure. b) Chlorothiazide (Diuril) ... thiazide diuretic. d) Spironolactone (Aldactone) Spironolactone is categorized as a potassium-sparing diuretic.

Last Answer : a) Furosemide (Lasix) Lasix is commonly used in the treatment of cardiac failure.

Which of the following statement(s) is/are true concerning methods of nutritional support? a. Optimal results for enteral feedings are achieved with approximately half of calories supplied as carbohydrate and half as fat b. Diarrhea is the most common complication of enteral feeds and is due to the high osmolarity of the carbohydrate components c. The hyperosmolar nature of parenteral fat solutions requires central venous administration d. Approximately 25–50% of calories should be provided as fat emulsion in patients receiving total parenteral nutrition

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Last Answer : Answer: a, b, d Most formulas for enteral feeding range from 1.0 to 2 cal/ml and include 3 to 7% protein. Most of the calories are supplied as glucose or sucrose, so that the solutions ... up to 25 to 50% of calories each day as fat emulsion may optimize the delivery of this caloric delivery

What is used in determining the nature of the learning problem? a) Environment b) Feedback c) Problem d) All of the mentioned

Description : What is used in determining the nature of the learning problem? a) Environment b) Feedback c) Problem d) All of the mentioned

Last Answer : b) Feedback

What is used in determining the nature of the learning problem? a) Environment b) Feedback c) Problem d) All of the mentioned

Description : What is used in determining the nature of the learning problem? a) Environment b) Feedback c) Problem d) All of the mentioned

Last Answer : b) Feedback

A wire loop is moved parallel to a uniform magnetic field. The induced emf in the loop: a. depends on the shape b. depends on area c. depends on nature of loop d. zero

Description : A wire loop is moved parallel to a uniform magnetic field. The induced emf in the loop: a. depends on the shape b. depends on area c. depends on nature of loop d. zero

Last Answer : d. zero

Draw B-H curve for magnetic material and state its nature. State the significance of hysteresis loop. Also draw the hysteresis loop for hard steel and soft steel.

Description : Draw B-H curve for magnetic material and state its nature. State the significance of hysteresis loop. Also draw the hysteresis loop for hard steel and soft steel. 

Last Answer : B-H curve for magnetic material: The B-H curve is the graphical representation of relation between flux density (B) and applied field strength (H), with H plotted on the x-axis and B plotted on ... or crossing an air gap tends to bulge outwards the iron ring, this effect is called as Fringing .

Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described? (a) Musca domestica - the common house lizard, a reptile (b) Plasmodium falciparum - a protozoan pathogen causing the most serious type of malaria. (c) Felis tigris - the Indian tiger, well protected in Gir forests. (d) E.coli - full name Entamoeba coli, a commonly occurring bacterium in human intestine.

Description : Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described? (a) Musca domestica - the common ... ) E.coli - full name Entamoeba coli, a commonly occurring bacterium in human intestine.

Last Answer : (b) Plasmodium falciparum - a protozoan pathogen causing the most serious type of malaria

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

Last Answer : Answer : A

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

Description : 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

Last Answer : all above

Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH is no longer released from the hypothalamus. C) Uterine stretching sends nerve impulses to the hypothalamus that releases oxytocin that triggers uterine contraction. D) FSH and LH stimulate the gonads to produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Description : Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH ... produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

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

Which one of the following is not a definition of error ? (A) It refers to the discrepancy between a computed, observed or measured value and the true, specified or theoretically correct value. (B) It refers to the actual output of a software and the correct output. (C) It refers to a condition that causes a system to fail. (D) It refers to human action that results in software containing a defect or fault.

Description : Which one of the following is not a definition of error ? (A) It refers to the discrepancy between a computed, observed or measured value and the true, specified or theoretically correct value. (B) It ... to fail. (D) It refers to human action that results in software containing a defect or fault. 

Last Answer : The input, or clock pulse.

The action performed by a ___________ structure must eventually cause the loop to terminate. a) sequence b) case c) repetition d) process

Description : The action performed by a ___________ structure must eventually cause the loop to terminate. a) sequence b) case c) repetition d) process

Last Answer : Answer: c Explanation: The action performed by a repetition structure must eventually cause the loop to terminate. Otherwise, an infinite loop is created

In an open-loop control system, what action reduces the input to zero so the load is stopped at the desired position?

Description : In an open-loop control system, what action reduces the input to zero so the load is stopped at the desired position?

Last Answer : Usually the operator senses the desired load movement and reduces the input to stop the motor.

Nonsteroidal antiinflammatory drugs reduce the diuretic action of furosemide by: A. Preventing prostaglandin mediated intrarenal haemodynamic actions B. Blocking the action in ascending limb of loop of Henle. C. Enhancing salt and water reabsorption in distal tubule D. Increasing aldosterone secretion

Description : Nonsteroidal antiinflammatory drugs reduce the diuretic action of furosemide by: A. Preventing prostaglandin mediated intrarenal haemodynamic actions B. Blocking the action in ascending limb of loop ... C. Enhancing salt and water reabsorption in distal tubule D. Increasing aldosterone secretion

Last Answer : A. Preventing prostaglandin mediated intrarenal haemodynamic actions

The primary site of action of thiazide diuretics is: A. Proximal tubule B. Ascending limb of loop of Henle C. Cortical diluting segment D. Collecting ducts

Description : The primary site of action of thiazide diuretics is: A. Proximal tubule B. Ascending limb of loop of Henle C. Cortical diluting segment D. Collecting ducts

Last Answer : C. Cortical diluting segment

Thiazide diuretics enhance K+ elimination in urine primarily by: A. Inhibiting proximal tubular K+ reabsorption B. Inhibiting Na+ K+-2Cl– cotransport in the ascending limb of loop of Henle C. Increasing the availability of Na+ in the distal tubular fluid to exchange with interstitial K+ D. Potentiating the action of aldosterone

Description : Thiazide diuretics enhance K+ elimination in urine primarily by: A. Inhibiting proximal tubular K+ reabsorption B. Inhibiting Na+ K+-2Cl- cotransport in the ascending limb of loop of Henle C ... in the distal tubular fluid to exchange with interstitial K+ D. Potentiating the action of aldosterone

Last Answer : C. Increasing the availability of Na+ in the distal tubular fluid to exchange with interstitial K

The Na+ retaining action of aldosterone is exerted on the: A. Proximal convoluted tubule B. Ascending limb of loop of Henle C. Cortical diluting segment D. Distal convoluted tubul

Description : The Na+ retaining action of aldosterone is exerted on the: A. Proximal convoluted tubule B. Ascending limb of loop of Henle C. Cortical diluting segment D. Distal convoluted tubul

Last Answer : D. Distal convoluted tubule

Open loop control system is one in which the control action :

Description :  Open loop control system is one in which the control action :  a) Depends on the input signal b) Is independent of the desired output c) Depends on system variables d) Depends on system size

Last Answer :  Open loop control system is one in which the control action : Is independent of the desired output

Which of the following statement(s) is/are true concerning the various types of shock? a. Traumatic shock is more commonly associated with subsequent organ injury and multiorgan failure syndrome than hemorrhagic shock b. Cardiogenic shock can be of either an intrinsic or compressive nature c. Hypodynamic septic shock is associated with a decreased mortality risk when compared with hyperdynamic septic shock d. Hypoadrenal shock usually responds quickly to resuscitation e. Neurogenic shock occurs with the absence of sympathetic activity

Description : Which of the following statement(s) is/are true concerning the various types of shock? a. Traumatic shock is more commonly associated with subsequent organ injury and multiorgan failure ... responds quickly to resuscitation e. Neurogenic shock occurs with the absence of sympathetic activity

Last Answer : Answer: a, b, d, e Classification schemes of shock based on cause have been developed for the seemingly dissimilar processes leading to circulatory collapse and the shock state. ... and pressor agents. The response to exogenous corticosteroids is usually dramatic and potentially life-saving

What term is commonly used to describe the shuffling of positions in search engine results in between major updates?  A. Flux  B.Waves  C.Shuffling  D.Swaying

Description : What term is commonly used to describe the shuffling of positions in search engine results in between major updates?  A. Flux  B.Waves  C.Shuffling  D.Swaying

Last Answer : A. Flux

Localized rapid bone turnover, most commonly affecting the skull, femur, tibia, pelvic bones, and vertebrae, characterizes which of the following bone disorders? a) Osteitis deformans Osteitis deformans (Paget’s disease) results in bone that is highly vascularized and structurally weak, predisposing to pathologic fractures.

Description : Localized rapid bone turnover, most commonly affecting the skull, femur, tibia, pelvic bones, and vertebrae, characterizes which of the following bone disorders? a) Osteitis deformans Osteitis ... that comes from extension of soft tissue infection, direct bone contamination, or hematogenous spread.

Last Answer : a) Osteitis deformans Osteitis deformans (Paget’s disease) results in bone that is highly vascularized and structurally weak, predisposing to pathologic fractures.

Of the following disorders, which results from excessive secretion of somatotropin? a) Acromegaly The patient with acromegaly demonstrates progressive enlargement of peripheral body parts, most commonly the face, head, hands, and feet.

Description : Of the following disorders, which results from excessive secretion of somatotropin? a) Acromegaly The patient with acromegaly demonstrates progressive enlargement of peripheral body parts, most ... syndrome is the result of abnormal secretion of adrenocortical hormones, especially androgen.

Last Answer : a) Acromegaly The patient with acromegaly demonstrates progressive enlargement of peripheral body parts, most commonly the face, head, hands, and feet.

Consider the following statements: 1. Standard penetration test is commonly used for cohesionless soils. 2. Standard penetration test results in respect of a cohesionless soil are correlated to its density index and friction angle. 3. Use of H-value not corrected for overburden pressure leads to highly conservative design of footings at shallow depths. Which of these statements are correct? (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Description : Consider the following statements: 1. Standard penetration test is commonly used for cohesionless soils. 2. Standard penetration test results in respect of a cohesionless soil are correlated to its density index and friction angle. 3. Use of H- ... 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Last Answer : (a) 1, 2 & 3

What is a pale yellow element that commonly occurs in nature?

Description : What is a pale yellow element that commonly occurs in nature?

Last Answer : Need answer

Which of the following is commonly used to describe the service interface, how to bind information, and the nature of the component’s service or endpoint? a) WSDL b) SCDL c) XML d) None of the mentioned

Description : Which of the following is commonly used to describe the service interface, how to bind information, and the nature of the component’s service or endpoint? a) WSDL b) SCDL c) XML d) None of the mentioned

Last Answer : WSDL

Which of the following is commonly used to describe the service interface, how to bind information, and the nature of the component’s service or endpoint? a) WSDL b) SCDL c) XML d) None of the mentioned

Description : Which of the following is commonly used to describe the service interface, how to bind information, and the nature of the component’s service or endpoint? a) WSDL b) SCDL c) XML d) None of the mentioned

Last Answer : WSDL

In the illustrated circuit, the amplifier is connected in what basic configuration? EL-0022 A. common base B. reverse bias, negative feedback C. common emitter D. common collector

Description : In the illustrated circuit, the amplifier is connected in what basic configuration? EL-0022 A. common base B. reverse bias, negative feedback C. common emitter D. common collector

Last Answer : Answer: C

Nonsteroidal antiinflammatory drugs are more commonly used than colchicine in acute gout because: A. They are more effective B. They act more rapidly C. They have additional uricosuric action D. They are better tolerated

Description : Nonsteroidal antiinflammatory drugs are more commonly used than colchicine in acute gout because: A. They are more effective B. They act more rapidly C. They have additional uricosuric action D. They are better tolerated

Last Answer : D. They are better tolerated

.Which of the following fee arrangements is in violation of the Code of Professional Conduct? a. A fee based on whether the CPA's report on the client's financial statements results in the approval of a bank loan. b. A fee based on the outcome of a bankruptcy proceeding. c. A fee based on the nature of the service rendered and the CPA's particulaexpertise instead of the actual time spent on the engagement. d. A fee based on the fee charged by the prior auditor.r

Description : .Which of the following fee arrangements is in violation of the Code of Professional Conduct? a. A fee based on whether the CPA's report on the client's financial statements results in the approval of a ... actual time spent on the engagement. d. A fee based on the fee charged by the prior auditor.

Last Answer : A fee based on whether the CPA's report on the client's financial statements results in the approval of a bank loan

Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is (A) Neutralised by alkali treatment (B) Left as such without any treatment (C) Diluted with fresh water to reduce its acidity (D) None of these

Description : Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to ... without any treatment (C) Diluted with fresh water to reduce its acidity (D) None of these

Last Answer : (A) Neutralised by alkali treatment

.In electromagneticwaves,polarization a. is caused by reflection b.isdue to the transversenature ofthewaves c. results from the longitudinal nature of the waves d. is always vertical in an isotropic medium

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