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

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

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

Description : 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

Last Answer : d.Line Joining Chuck centre & tail stock centre

Which one of the process is subtractive prototyping? a.5 axis CNC Milling b.Fused Deposition Modeling c.Multi-Jet Modeling d.Stereolithography Apparatus

Description : Which one of the process is subtractive prototyping? a.5 axis CNC Milling b.Fused Deposition Modeling c.Multi-Jet Modeling d.Stereolithography Apparatus

Last Answer : a.5 axis CNC Milling

CNC machining centres do not include operations like a.milling b.boring c.welding d.tapping

Description : CNC machining centres do not include operations like a.milling b.boring c.welding d.tapping

Last Answer : c.welding

……… is a group of words or coded instruction for the NC/CNC system to execute aparticular movement. a.Sequence b.Address c.Code d.Block

Description : ……… is a group of words or coded instruction for the NC/CNC system to execute aparticular movement. a.Sequence b.Address c.Code d.Block

Last Answer : d.Block

Computer will perform the data processing functions in a.NC b.CNC c.DNC d.None of the mentioned

Description : Computer will perform the data processing functions in a.NC b.CNC c.DNC d.None of the mentioned

Last Answer : b.CNC

machine is used for "Threshing , Harvesting , Separating , Cleaning and Collecting grains " a) Lathe b) Milling c) Combine d) Forklift

Description : machine is used for "Threshing , Harvesting , Separating , Cleaning and Collecting grains " a) Lathe b) Milling c) Combine d) Forklift

Last Answer : Combine 

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

Last Answer : c.RP machine

The lost motion in CNC machine tool is on account of a.Backlash in gearing b.Wind-up of drive shafts c.Deflection of machine tool members d.All the above

Description : The lost motion in CNC machine tool is on account of a.Backlash in gearing b.Wind-up of drive shafts c.Deflection of machine tool members d.All the above

Last Answer : a.Backlash in gearing

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

Description : 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

Last Answer : c.A & B both

Automatic tool change in CNC Machine code a.M05 b.M06 c.M07 d.M09

Description : Automatic tool change in CNC Machine code a.M05 b.M06 c.M07 d.M09

Last Answer : b.M06

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

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

Last Answer : c.G92

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

Description : 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

Last Answer : c.Canned Cycle

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

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

Last Answer : b.3

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 cell formation using production flow analysis, the following process will be left out of theanalysis a.Grinding b.Milling c.Drilling d.Gear cutting

Description : In cell formation using production flow analysis, the following process will be left out of theanalysis a.Grinding b.Milling c.Drilling d.Gear cutting

Last Answer : d.Gear cutting

Drilling, milling and threading are examples of which kind of processes? a.Additive manufacturing b.Subtractive manufacturing c.Formative manufacturing d.None of the above

Description : Drilling, milling and threading are examples of which kind of processes? a.Additive manufacturing b.Subtractive manufacturing c.Formative manufacturing d.None of the above

Last Answer : b.Subtractive manufacturing

Which of the following is not subtractive process? a.Milling b.Stereo-lithography c.Sawing d.EDM

Description : Which of the following is not subtractive process? a.Milling b.Stereo-lithography c.Sawing d.EDM

Last Answer : b.Stereo-lithography

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 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

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

In the lathe it is the peripheral speed of the work piece cutting speed of tool is expressed inm/min, V is a.= 𝜋𝐷𝑁/1000 b.= 𝜋𝐷/1000 c.= 𝐷𝑁/1000 d.=𝜋𝐷𝑁/10

Description : In the lathe it is the peripheral speed of the work piece cutting speed of tool is expressed inm/min, V is a.= 𝜋𝐷𝑁/1000 b.= 𝜋𝐷/1000 c.= 𝐷𝑁/1000 d.=𝜋𝐷𝑁/10

Last Answer : a.= 𝜋𝐷𝑁/1000

In CNC machining tool radius compensation turning the left mode ON programming contourdone by a.G40 b.G41 c.G42 d.G43

Description : In CNC machining tool radius compensation turning the left mode ON programming contourdone by a.G40 b.G41 c.G42 d.G43

Last Answer : b.G41

XY Plane Selection in CNC machining is done by….. a.G16 b.G17 c.G18 d.G19

Description : XY Plane Selection in CNC machining is done by….. a.G16 b.G17 c.G18 d.G19

Last Answer : b.G17

In CNC programming …….. is commonly used canned cycle for Stock removal cycle a.G71 b.G72 c.G73 d.G74

Description : In CNC programming …….. is commonly used canned cycle for Stock removal cycle a.G71 b.G72 c.G73 d.G74

Last Answer : d.G74

In a CNC program block, N05 GO1 G91 G33 X20 Z-40 K5……, K refer to a.Depth of cut b.Pitch c.Multiple Threading Cycle d.Feed

Description : In a CNC program block, N05 GO1 G91 G33 X20 Z-40 K5……, K refer to a.Depth of cut b.Pitch c.Multiple Threading Cycle d.Feed

Last Answer : b.Pitch

In CNC Program M98 is refer to…… a.CANCEL Subroutine b.Call Sub-Program c.Call Subroutine d.CANCEL Sub-Program

Description : In CNC Program M98 is refer to…… a.CANCEL Subroutine b.Call Sub-Program c.Call Subroutine d.CANCEL Sub-Program

Last Answer : b.Call Sub-Program

In CNC Program M03 is refer to…… a.Spindle ON in Clockwise rotation b.Spindle ON in Counter Clockwise rotation c.Spindle OFF in Clockwise rotation d.Spindle OFF in Counter Clockwise rotation

Description : In CNC Program M03 is refer to…… a.Spindle ON in Clockwise rotation b.Spindle ON in Counter Clockwise rotation c.Spindle OFF in Clockwise rotation d.Spindle OFF in Counter Clockwise rotation

Last Answer : a.Spindle ON in Clockwise rotation

In a CNC program block, N05 GO1 G91 G33 X20 Z-40……, G33 refer to a.Peck Drilling b.Counter Boring c.Thread Cutting d.Grooving

Description : In a CNC program block, N05 GO1 G91 G33 X20 Z-40……, G33 refer to a.Peck Drilling b.Counter Boring c.Thread Cutting d.Grooving

Last Answer : c.Thread Cutting

For CNC machining skilled part programmers are needed. a.TRUE b.FALSE c. d.

Description : For CNC machining skilled part programmers are needed. a.TRUE b.FALSE c. d.

Last Answer : a.TRUE

Which of the following is not the advantage of CNC machines? a.Higher flexibility b.Improved quality c.Reduced scrap rate d.Improved strength of the components

Description : Which of the following is not the advantage of CNC machines? a.Higher flexibility b.Improved quality c.Reduced scrap rate d.Improved strength of the components

Last Answer : d.Improved strength of the components

In CNC systems multiple microprocessors and programmable logic controllers work a.in parallel b.in series c.one after the other d.for 80% of the total machining time

Description : In CNC systems multiple microprocessors and programmable logic controllers work a.in parallel b.in series c.one after the other d.for 80% of the total machining time

Last Answer : a.in parallel

In a CNC program block, N02 GO2 G91 X40 Z40……, GO2 and G91 refer to a.circular interpolation in counter clockwise direction and incremental dimension b.circular interpolation in counter clockwise direction and absolute dimension c.circular interpolation in clockwise direction and incremental dimension d.circular interpolation in clockwise direction and absolute dimension

Description : In a CNC program block, N02 GO2 G91 X40 Z40††, GO2 and G91 refer to a.circular interpolation in counter clockwise direction and incremental dimension b.circular ... in clockwise direction and incremental dimension d.circular interpolation in clockwise direction and absolute dimension

Last Answer : c.circular interpolation in clockwise direction and incremental dimension

During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0the type of tool motion will be a.circular Interpolation – clockwise b.circular Interpolation – counter clockwise c.linear Interpolation d.rapid feed

Description : During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0the type of tool motion will be a.circular Interpolation – clockwise b.circular Interpolation – counter clockwise c.linear Interpolation d.rapid feed

Last Answer : a.circular Interpolation – clockwise

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

NC contouring is an example of a.Continuous path positioning b.Point-to-point positioning c.Absolute positioning d.Incremental positioning

Description : NC contouring is an example of a.Continuous path positioning b.Point-to-point positioning c.Absolute positioning d.Incremental positioning

Last Answer : a.Continuous path positioning

An absolute NC system is one in which all position coordinates are referred to one fixedorigin called the zero point. a.TRUE b.FALSE c. d.

Description : An absolute NC system is one in which all position coordinates are referred to one fixedorigin called the zero point. a.TRUE b.FALSE c. d.

Last Answer : a.TRUE

Match the following: NC code DefinitionP. M05 1. Absolute coordinate system Q. G01 2. Dwell R. G04 3. Spindle stop S. G09 4. Linear interpolation a.P-2, Q-3, R-4, S-1 b.P-3, Q-4, R-1, S-2 c.P-3, Q-4, R-2, S-1 d.P-4, Q-3, R-2, S-1

Description : Match the following: NC code DefinitionP. M05 1. Absolute coordinate system Q. G01 2. Dwell R. G04 3. Spindle stop S. G09 4. Linear interpolation a.P-2, Q-3, R-4, S-1 b.P-3, Q-4, R-1, S-2 c.P-3, Q-4, R-2, S-1 d.P-4, Q-3, R-2, S-1

Last Answer : c.P-3, Q-4, R-2, S-1

n an NC machining operation, the tool has to be moved from point (5, 4) to point (7, 2) alonga circular path with centre at (5, 2). Before starting the operation, the tool is at (5, 4). The G and N codes for this motion are a.N010 GO3 X7.0 Y2.0 I5.0 J2.0 b.N010 GO2 X7.0 Y2.0 I5.0 J2.0 c.N010 GO1 X7.0 Y2.0 I5.0 J2.0 d.N010 GOO X7.0 Y2.0 I5.0 J2.0

Description : n an NC machining operation, the tool has to be moved from point (5, 4) to point (7, 2) alonga circular path with centre at (5, 2). Before starting the operation, the tool is at (5, 4). The G and N codes for this motion ... 0 I5.0 J2.0 c.N010 GO1 X7.0 Y2.0 I5.0 J2.0 d.N010 GOO X7.0 Y2.0 I5.0 J2.0

Last Answer : b.N010 GO2 X7.0 Y2.0 I5.0 J2.0

“CNC machine is having higher productivity than general lathe machine” Justify the statement.

Description : “CNC machine is having higher productivity than general lathe machine” Justify the statement.

Last Answer : CNC machining and conventional machining aim to achieve the same end, and both start with a raw chunk of metal or plastic and shape it into a part. CNC machine is having higher productivity than ... to cut the part, while the conventional machine would require five tools and no doubt more time.

Define NC and CNC machine.

Description : Define NC and CNC machine.

Last Answer : NC Machine: A system in which actions are controlled by direct insertions of numerical data at some point. or In simple words, Numerical Control Machines means machine controlled by number ... numerical control in which a dedicated computer is used to perform all the basic NC functions.

Where can I buy parts for a CNC lathe?

Description : Where can I buy parts for a CNC lathe?

Last Answer : Chances are if you search for CNC Lathe on ebay or Craigslist you'll be able to find out what you need. There are a variety of equipment available on these sites.

Sketch axis orientation for CNC lathe.

Description : Sketch axis orientation for CNC lathe.

Last Answer : Fig. Axis Orientation of CNC Lathe 

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

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

Last Answer : b.FALSE

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

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

Last Answer : a.Robot

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

____ 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

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

Description : 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

Last Answer : d.All of the above

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

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

Last Answer : c.Process layout

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

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

Last Answer : d.Adobe Illustrator