In open loop system

In open loop system

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In open loop system the control action is independent of the output.

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Related questions

What will happen to the gain margin if the gain of the open loop system is doubled?

Description : What will happen to the gain margin if the gain of the open loop system is doubled? A) Doubled B) Becomes half C) Is not affected D) Becomes one-fourth 

Last Answer : What will happen to the gain margin if the gain of the open loop system is doubled? A) Doubled B) Becomes half C) Is not affected D) Becomes one-fourth 

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

If the gain of the open loop system is doubled, the gain margin

Description : If the gain of the open loop system is doubled, the gain margin  (1) Is not affected (2) Gets doubled (3) Becomes half (4) Becomes one -forth

Last Answer : If the gain of the open loop system is doubled, the gain margin Becomes half

_____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.

In an open loop control system?

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

What is an example of an open loop system?

Description : What is an example of an open loop system?

Last Answer : Open loop system. Ex. Electric heater, washing machine, fan, electric switch, etc

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

In root locus plot, a point on the real axis lies on the locus, if the number of open loop poles plus zeros on

Description : In root locus plot, a point on the real axis lies on the locus, if the number of open loop poles plus zeros on real axis to the a) left of the point is odd b) left of the point is even . c) right of the pointis odd d) right of the point is even

Last Answer : In root locus plot, a point on the real axis lies on the locus, if the number of open loop poles plus zeros on real axis to the right of the pointis odd

Order of the open loop transfer function is_____ to order of closed loop transfer function

Description : Order of the open loop transfer function is _____ to order of closed loop transfer function   (a) not equal (b) equal (c) less than (d) greater than 

Last Answer : Order of the open loop transfer function is equal to order of closed loop transfer function 

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

Last Answer : 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

The loop transfer of a system is G(s) H(s) = 5/(s+1) (2s+1)(3s+1) which has the phase crossover frequency

Description : The loop transfer of a system is G(s) H(s) = 5/(s+1) (2s+1)(3s+1) which has the phase crossover frequency fc = 0.16 Hz. The gain margin (dB) of the system is  (a) 6 (b) 4 (c) 2 (d) 0

Last Answer : The loop transfer of a system is G(s) H(s) = 5/(s+1) (2s+1)(3s+1) which has the phase crossover frequency fc = 0.16 Hz. The gain margin (dB) of the system is 6

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 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.

_____is a closed loop system.

Description : _____is a closed loop system.

Last Answer : Auto-pilot for an aircraft is a closed loop system.

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.

What are some examples of a closed loop system?

Description : What are some examples of a closed loop system?

Last Answer : C.L s/m. EX. Air conditioner (AC), rocket launcher, radar system, voltage stabilizer etc.

After drawing the Root-Locus, the closed-loop poles corresponding to a specified value of gain K can be

Description : After drawing the Root-Locus, the closed-loop poles corresponding to a specified value of gain K can be determined from which of the following criterion ? (A) Magnitude criterion alone (B) Angle criterion alone (C) Both Magnitude and Angle criteria (D) Angle of departure and angle of arrival.

Last Answer : After drawing the Root-Locus, the closed-loop poles corresponding to a specified value of gain K can be determined from which of the following criterion ? (A) Magnitude criterion alone (B) Angle ... (C) Both Magnitude and Angle criteria (D) Angle of departure and angle of arrival.

From the following in which FMS layout robots are used as material handling system a.Ladder layout b.Open field layout c.Loop layout d.Robot centered layout

Description : From the following in which FMS layout robots are used as material handling system a.Ladder layout b.Open field layout c.Loop layout d.Robot centered layout

Last Answer : d.Robot centered layout

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

is an open loop control system. (a) Ward Leonard control (b) Field controlled D.C. motor (c) Stroboscope (d) Metadyne

Description : is an open loop control system. (a) Ward Leonard control (b) Field controlled D.C. motor (c) Stroboscope (d) Metadyne

Last Answer : Ans: B

Closed loop and Open loop Control System Advantages and Disadvantages

Description : Closed loop and Open loop Control System Advantages and Disadvantages

Last Answer : Open Loop Control System: Control System in which output quantity has no effect on the input quantity is called Open Loop Control System. Open Loop Control System has no facility to correct automatically the ... in the closed loop system and more care is needed to design a stable closed loop system

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.

What basic requirement of a closed-loop system (not present in open-loops) enables present load position to be sensed?

Description : What basic requirement of a closed-loop system (not present in open-loops) enables present load position to be sensed?

Last Answer : Feedback.

Explain Closed loop and Open loop system with sketch.

Description : Explain Closed loop and Open loop system with sketch. 

Last Answer : Closed Loop System: [1] The name indicates that the closed loop control system has a loop that is closed as shown in figure. [2] A feedback device is used for this purpose. This makes ... system is generally used in point-to-point systems where the accuracy requirements are not critical. 

Describe open loop and closed loop system.

Description : Describe open loop and closed loop system.

Last Answer : Open loop and closed loop system: Open system: When the input is independent of the output, the system is called open- loop system. The control action is based on only some ... system is called closed- loop control system. The output is continuously measured and fed to the input. 

Difference between open loop and closed loop control system

Description : Difference between open loop and closed loop control system

Last Answer : Difference between open loop and closed loop control system : Sr No. Open loop control system Closed loop control system  1 Feedback doesn't exists Feedback exists 2 ... and hence costly 9 Highly affected by nonlinearities Reduced effect of non-linearity

What are the disadvantages of Open loop control system?

Description : What are the disadvantages of Open loop control system?

Last Answer : Open loop control system are less reliable. In open loop control system Optimization is not possible. Open loop control system are less accurate.

A system has 14 poles and 2 zeros in its open -loop transfer function. The slope of its highest frequency ...

Description : A system has 14 poles and 2 zeros in its open -loop transfer function. The slope of its highest frequency asymptote in its magnitude plot is (a) - 40 dB/dec (b) - 240 dB/dec (c) + 40 dB/dec (d) + 240 dB/dec

Last Answer : A system has 14 poles and 2 zeros in its open -loop transfer function. The slope of its highest frequency asymptote in its magnitude plot is (a) - 40 dB/dec (b) - 240 dB/dec (c) + 40 dB/dec (d) + 240 dB/dec

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

From the following which FMS layout is combination of many loop and ladder layout a.Ladder layout b.Open field layout c.Loop layout d.None of the above

Description : From the following which FMS layout is combination of many loop and ladder layout a.Ladder layout b.Open field layout c.Loop layout d.None of the above

Last Answer : b.Open field layout

From the following in which FMS layout workstations are arranged in a loop with rungs a.Ladder layout b.Open field layout c.Loop layout d.None of the above

Description : From the following in which FMS layout workstations are arranged in a loop with rungs a.Ladder layout b.Open field layout c.Loop layout d.None of the above

Last Answer : a.Ladder layout

From the following in which FMS layout machine tools are kept along a straight line. a.Loop layout b.In line layout c.Ladder layout d.Open field layout

Description : From the following in which FMS layout machine tools are kept along a straight line. a.Loop layout b.In line layout c.Ladder layout d.Open field layout

Last Answer : b.In line layout

With reference to NC machines, which of the following statements is wrong a.Both closed-loop and open-loop control systems are used b.Paper tapes, floppy tapes and cassettes are used for data storage c.Digitizers may be used as interactive input devices d.Post processor is an item of hardware

Description : With reference to NC machines, which of the following statements is wrong a.Both closed-loop and open-loop control systems are used b.Paper tapes, floppy tapes and cassettes are used for data storage c.Digitizers may be used as interactive input devices d.Post processor is an item of hardware

Last Answer : c.Digitizers may be used as interactive input devices

Actual op-amp may have an open loop gain of A. 102 B. 105 C. 103 D. 104

Description : Actual op-amp may have an open loop gain of A. 102 B. 105 C. 103 D. 104

Last Answer : 105

Why open loop OP-AMP configurations are not used in linear applications?

Description : Why open loop OP-AMP configurations are not used in linear applications?

Last Answer : The open loop gain of the op-amp is not a constant and it varies with changing the temperature and variations in power supply.Also the bandwidth of the open loop op-amp is negligibly small.For this reasons open loop OP-AMP configurations are not used in linear applications.

If a robot can alter its own trajectory in response to external conditions, it is considered to be ____________ a) intelligent b) mobile c) open loop d) non-servo

Description : If a robot can alter its own trajectory in response to external conditions, it is considered to be ____________ a) intelligent b) mobile c) open loop d) non-servo

Last Answer : a) intelligent

If a robot can alter its own trajectory in response to external conditions, it is considered to be __________ a) intelligent b) mobile c) open loop d) non-servo

Description : If a robot can alter its own trajectory in response to external conditions, it is considered to be __________ a) intelligent b) mobile c) open loop d) non-servo

Last Answer : a) intelligent

If a robot can alter its own trajectory in response to external conditions it is considered to be A : Intelligent B : Mobile C : Open loop D : Non-servo

Description : If a robot can alter its own trajectory in response to external conditions it is considered to be A : Intelligent B : Mobile C : Open loop D : Non-servo

Last Answer : A : Intelligent

If a robot can alter its own trajectory in response to external conditions it is considered to be A : Intelligent B : Mobile C : Open loop D : Non-servo

Description : If a robot can alter its own trajectory in response to external conditions it is considered to be A : Intelligent B : Mobile C : Open loop D : Non-servo

Last Answer : A : Intelligent

In open-loop control, policies are applied to __________ A. Remove after congestion occurs B. Remove after sometime C. Prevent before congestion occurs D. Prevent before sending packets

Description : In open-loop control, policies are applied to __________ A. Remove after congestion occurs B. Remove after sometime C. Prevent before congestion occurs D. Prevent before sending packets

Last Answer : C. Prevent before congestion occurs

How do closed-loop capstan drive tape transports overcome the disadvantages of the open-loop drive design?

Description : How do closed-loop capstan drive tape transports overcome the disadvantages of the open-loop drive design?

Last Answer : Closed loop capstan drive transports use more than one capstan to clamp the tape in the area around the magnetic head.

There are two types of tape transport configurations, open loop capstan drive and closed-loop capstan drive. What are two major disadvantages of open-loop capstan drive tape transports?

Description : There are two types of tape transport configurations, open loop capstan drive and closed-loop capstan drive. What are two major disadvantages of open-loop capstan drive tape transports?

Last Answer : a. Only operates in one direction. b. The tape tension and head-to-tape contact can vary.

The open loop gain of the amplifier is ______ (a) 105 (b) 103 (c) 106 (d) 108

Description : The open loop gain of the amplifier is ______ (a) 105 (b) 103 (c) 106 (d) 108

Last Answer : (a) 105

If a robot can alter its own trajectory in response to external conditions, it is considered to be: ⮚ mobile ⮚ open loop ⮚ intelligent ⮚ non-servo

Description : If a robot can alter its own trajectory in response to external conditions, it is considered to be: ⮚ mobile ⮚ open loop ⮚ intelligent ⮚ non-servo

Last Answer : ⮚ intelligent

Arrange the knitting sequence in correct order 1. Needle falls, old loop rises closing latch of the needle 2. Needle is now ready to repeat cycle 3. Old loop is held on the stem of the needle. The latch is open 4. Old loop is cast off; new loop pushes the lap to open; needle rises and the new loop slides down to the stem of the needle 5. New loop is formed around the hook of the needle a. 2,1,5,3,4 b. 3,5,1,4,2 c. 3,5,4,1,2 d. 2,1,4,3,5

Description : Arrange the knitting sequence in correct order 1. Needle falls, old loop rises closing latch of the needle 2. Needle is now ready to repeat cycle 3. Old loop is held on the stem of the needle. The latch is open 4. Old loop is cast off; new ... a. 2,1,5,3,4 b. 3,5,1,4,2 c. 3,5,4,1,2 d. 2,1,4,3,5

Last Answer : b. 3,5,1,4,2

An operational amplifier has an open loop gain of 200,000. Its output exhibits saturation at 10V.

Description : An operational amplifier has an open loop gain of 200,000. Its output exhibits saturation at 10V. The threshold differential voltage of the amplifier is  A) 25 micro-volt B) 50 micro-volt C) 5 Volts D) 10 volts

Last Answer : An operational amplifier has an open loop gain of 200,000. Its output exhibits saturation at 10V. The threshold differential voltage of the amplifier is 50 micro-volt

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