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

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

c.Closed-loop system
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Related questions

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

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

The repeatability of NC machine depends on a.control loop errors b.mechanical errors c.electrical errors d.none of the mentioned

Description : The repeatability of NC machine depends on a.control loop errors b.mechanical errors c.electrical errors d.none of the mentioned

Last Answer : b.mechanical errors

In which machine we get feedback? a.Lathe machine b.NC machine c.CNC machine d.Milling machine

Description : In which machine we get feedback? a.Lathe machine b.NC machine c.CNC machine d.Milling machine

Last Answer : c.CNC machine

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

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

Control loop unit of M.C.U is always a.a hardware unit b.a software unit c.a control unit d.none of the mentioned

Description : Control loop unit of M.C.U is always a.a hardware unit b.a software unit c.a control unit d.none of the mentioned

Last Answer : a.a hardware unit

The machine tool, in which calculation and setting of the operating conditions like depth ofcut, feed, speed are done during the machining by the control system itself, is called a.Computer Numerical Control System b.Direct Numerical Control System c.Machining Center System d.Adaptive Control System

Description : The machine tool, in which calculation and setting of the operating conditions like depth ofcut, feed, speed are done during the machining by the control system itself, is called a.Computer Numerical Control System b.Direct Numerical Control System c.Machining Center System d.Adaptive Control System

Last Answer : d.Adaptive Control System

From the following in which FMS layout workstations are arranged in a loop a.Ladder layout b.In line layout c.Loop layout d.None of the above

Description : From the following in which FMS layout workstations are arranged in a loop a.Ladder layout b.In line layout c.Loop layout d.None of the above

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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

Full form of MCU is………… a.Machine computer unit b.Machine control universal c.Machine control unit d.None of the above

Description : Full form of MCU is………… a.Machine computer unit b.Machine control universal c.Machine control unit d.None of the above

Last Answer : c.Machine control unit

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 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 ___________ is used to create a surface using curves that form closed boundaries a.ruled Surface b.plane Surface c.coons patch d.surface of Revolution

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Last Answer : c.coons patch

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Last Answer : c.coons patch

____ is a highly automated group of GT machine cell. a.Flexible manufacturing system b.Group technology c.Automated system d.None of the above

Description : ____ is a highly automated group of GT machine cell. a.Flexible manufacturing system b.Group technology c.Automated system d.None of the above

Last Answer : a.Flexible manufacturing system

The STL files translate the part geometry from a CAD system to________ a.CNC machine b.VMC machine c.RP machine d.CAPP machine

Description : The STL files translate the part geometry from a CAD system to________ a.CNC machine b.VMC machine c.RP machine d.CAPP machine

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……… is the origin of the coordinate system which is defined by manufacturer they cannotbe changed a.Blocking Point b.machine Zero Point c.Start Point d.Program Zero point

Description : ……… is the origin of the coordinate system which is defined by manufacturer they cannotbe changed a.Blocking Point b.machine Zero Point c.Start Point d.Program Zero point

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QFor generating Coons patch we require a.A set of grid points on surface b.A set of control points c.Four bounding curves defining surface d.Two bounding curves and a set of grid control points

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We control the location of a scaled object by choosing the position is knownas……………………………. a.Pivot point b.Fixed point c.Differential scaling d.Uniform scaling

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Last Answer : b.Fixed point

The technology is defined as the sophistication of a plant ,any equipment or any machine etc a.TRUE b.FALSE c.D d.

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____ is a general purpose, programmable machine possessing certain human like characteristics a.Robot b.Manipulator c.Gripper d.None of the above

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From the following which is the step of machine cell design? a.Divide parts into part families b.Select type of machine cell c.Prepare a composite part d.All of the above

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In which layout manufacturing is done according to machine arrangement a.GT layout b.Product layout c.Process layout d.Hybrid layout

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Which CAD software cannot be used to create data for the prototyping machine? a.CREO b.CATIA c.NX Unigraphics d.Adobe Illustrator

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What is the format for the prototyping machine file? a..prt b..slt c..stl d..iges

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Which of the following is one of the design process steps? a.Build b.Concept c.Pre-processing d.Transfer to machine

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Which of the following is the process in the RP cycle? a.Post-processing b.Transfer to machine c.Pre-processing d.All of the above

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Which of the following is least important in design during rapid prototyping? a.Machine size b.Tolerance c.Material d.CAD software

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In finish machining of an island on a casting with CNC milling machine, an end mill with 10 mm diameter is employed. The corner points of the island are represented by (0, 0), (0, 30), (50, 30) and (50, 0). By applying cutter radius right compensation, the trajectory of the cutter will be a.(-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5) b.(0,-5), (55,-5), (55, 35), (-5, 35), (-5,-5) c.(5, 5), (5, 25), (45, 25), (45, 5), (5, 5) d.(5, 5), (45, 5), (45, 25), (5, 25), (5, 5)

Description : In finish machining of an island on a casting with CNC milling machine, an end mill with 10 mm diameter is employed. The corner points of the island are represented by (0, 0), (0, 30), (50, 30) and (50, 0). By applying cutter radius right ... , 5), (5, 5) d.(5, 5), (45, 5), (45, 25), (5, 25), (5, 5)

Last Answer : a.(-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5)

In the CNC machine which device used to hold the workpiece? a.Automatic pallet changer b.Automatic work part positioner c.A & B both d.None of the above

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Maximum spindle speed limitation code in CNC Machine a.G90 b.G91 c.G92 d.G93

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To indicate the position of the workpiece ly & easily machine zero pint should be displacedto another point on the workpiece called… a.Workpiece zero Point b.machine Zero Point c.Start Point d.Program Zero point

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Repetitive CNC machine operations conveniently performing and execute with onecommand instead of programming of series of individual move called ….. a.Common Cycle b.Incremental Programming c.Canned Cycle d.None of the above

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A CNC Lathe is usually a machine tool with Z axes is….. a.Line Joining origin and vertical movement b.Line perpendicular to Y axis c.Both A & B d.Line Joining Chuck centre & tail stock centre

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In how many ways CNC machine tool systems can be classified? a.2 b.3 c.4 d.5

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The tool of an NC machine has to move along a circular arc from (5, 5) to (10, 10) while performing an operation. The centre of the arc is at (10, 5). Which one of the following NC tool path command performs the above mentioned operation? a.N010 GO2 X10 Y10 X5 Y5 R5 b.N010 GO3 X10 Y10 X5 Y5 R5 c.N010 GO1 X5 Y5 X10 Y10 R5 d.N010 GO2 X5 Y5 X10 Y10 R5

Description : The tool of an NC machine has to move along a circular arc from (5, 5) to (10, 10) while performing an operation. The centre of the arc is at (10, 5). Which one of the following NC tool path command performs the ... b.N010 GO3 X10 Y10 X5 Y5 R5 c.N010 GO1 X5 Y5 X10 Y10 R5 d.N010 GO2 X5 Y5 X10 Y10 R5

Last Answer : a.N010 GO2 X10 Y10 X5 Y5 R5

From the following which is not the type of protocol used in CIM? a.Open standard interconnection - OSI b.Manufacturing Automation Protocol - MAP c.Technical and Industrial Protocol - TIP d.None of the above

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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.

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

Numerical control a.applies only to milling machines b.is a method for producing exact number of parts per hour c.is a method for controlling by means of set of instructions d.None of the mentioned

Description : Numerical control a.applies only to milling machines b.is a method for producing exact number of parts per hour c.is a method for controlling by means of set of instructions d.None of the mentioned

Last Answer : c.is a method for controlling by means of set of instructions

The software that is used to control the computer’s work flow, organize its data andperform housekeeping functions is known as a.operating software b.graphics software c.application software d.programming software

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Last Answer : a.operating software

The degree of the curve is independent of the number of control points in _____ a.Hermite cubic spline curve b.Bezier curve c.B-spline curve d.Hyperbola

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In Beizer Curve, the flexibility of the shape would increase with _______ of the polygon. a.decrease in the number of vertices b.increase in the number of vertices c.decrease in control points d.none of the above

Description : In Beizer Curve, the flexibility of the shape would increase with _______ of the polygon. a.decrease in the number of vertices b.increase in the number of vertices c.decrease in control points d.none of the above

Last Answer : b.increase in the number of vertices

In Beizer Curve, the curve follows __________ a.the control points b.the shape of the defining polygon c.the defining points d.none of the above

Description : In Beizer Curve, the curve follows __________ a.the control points b.the shape of the defining polygon c.the defining points d.none of the above

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________curves allow local control of the curve. a.Analytical b.Hermite cubic spline c.Beizer d.B-Spline

Description : ________curves allow local control of the curve. a.Analytical b.Hermite cubic spline c.Beizer d.B-Spline

Last Answer : d.B-Spline

The degree of the curve is independent of the number of control points in . a.Hermite cubic spline curve b.Bezier curve c.B-spline curve d.Hyperbola

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Last Answer : c.B-spline curve