Jig And Fixture Question And Answer Pdf

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IT HAS BEEN stated many times that jig and tool design is a difficult subject to teach because the design of such equipment rarely has a mathematical basis. Few will disagree with the latter part of the statement, but the implications of the first part must be examined carefully.

Are you looking for the notes on Jigs and Fixture s? Yap, you are landed in the right destination. A jig is a work-holding devic e that holds, supports, and locates the workpiece and guides the one or more tools to perform a specific operation. In other words, this can also be defined as, used for holding the tools and also guiding the cutting tools.

Design of Jigs & Fixtures/Material Used in Jig and Fixture

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Submit Search. Home Explore. Successfully reported this slideshow. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime. Ch 23 jig and fixtures. Upcoming SlideShare. Like this presentation? Why not share! Embed Size px. Start on. Show related SlideShares at end. WordPress Shortcode. Published in: Engineering. Full Name Comment goes here. Are you sure you want to Yes No. Yash Ingle. Karnati Satwik.

Prathap Choudary. Khushalkumar Ghoricha. Show More. No Downloads. Views Total views. Actions Shares. No notes for slide. Ch 23 jig and fixtures 1. GATE - Choose the correct statement: a A fixture is used to guide the tool as well as to locate and clamp the workpiece b A Jig is used to guide the tool as well as to locate and clamp the workpiece c Jigs arc used on CNC machines to locate and clamp the workpiece and also to guide the tool d No arrangement to guide the tool is provided in a jig.

Major elements of jig and fixtures 9. This would restrict the linear motion along the Y-axis. This would arrest the linear motion along the Z-axis. A component with six locators IES - According to the principle of location in jigs and fixtures, how many degrees of freedom are to be eliminated to have a body fixed in space?

So, 9 degrees of freedom of the work piece need to be fixed. GATE - When principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is a 7 b 8 c 9 d 10 GATE - method of location in a jig or fixture would collectively restrict the workpiece in n degrees of freedom, where the value of n is a 6 b 8 c 9 d 12 GATE PI In the principle of fixture design, 3 refers to the number of a Clamps equired b Locators on the primary datum face c Degrees of freedom of the workpiece d Operations carried out on the primary datum face IES In the principle of fixture 3 refers to number of a Setups possible b Clamps required c Positions on primary face d Locating positions Once the machining operation is complete at station one, the fixture is revolved and the machining is started at station two.

During this period, the machined part is unloaded from station one and a fresh part is loaded there, and so on There are a variety of milling fixtures that are in use. Moving the part to accommodate one cutter for several operations is not as accurate or as efficient as changing cutters.

Clamps should not be used to resist tool forces. IES Conventional Explain salient design principles of milling fixtures with a typical milling fixture diagram. However, if one of the holes is larger then the principal locator will be placed in the larger hole. The cylindrical surfaces will locate the part in the Y direction. IES — , Diamond pin location is used in a fixture because a It does not wear out b It takes care of any variation in centre distance between two holes c It is easy to clamp the part on diamond pins d It is easy to manufacture IES - A lever having two precisely drilled holes, one smaller than the other, has to be located in a fixture using hardened and ground plugs for further machining in relation to the holes.

Select the correct method of locating the lever from the given alternatives. Other-wise, application is very similar.

A cam clamp used for quick and easy clamping a part This is more stable and the vibrations during machining do not affect the a part clamping. An example of a fixture held by a cam clamp A push-pull type toggle clamp In this type of clamp the link arm system is being used to apply an equally divided clamping force to a pair of clamps acting on the same component.

It is also possible to use this system of clamping to clamp two parts. An equalizing clamp IES - Assertion A : A workpiece with rough un-machined surface can be located in a jig or fixture on three supporting points.

Reason R : Indexing is made accurate by supporting on three points. IES - Consider the following statements: The cutter setting block in a milling fixture 1. Sets the cutting tool with respect of two of its surfaces. Limits the total travel required by the cutter during machining.

Takes location from the location scheme of the component. Jigs and Fixtures Q. No Option Q. You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips. Visibility Others can see my Clipboard. Cancel Save.

Jigs and Fixtures Objective Questions - Fitter (Set-1)

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The basic jig is almost the same for either machining oper- ation. The only difference is in the size of the bushings used. Open jigs are for simple operations where work is done on only one side of the part. Closed, or box, jigs are used for parts that must be machined on more than one side. The names used to identify these jigs refer to how the tool is built. Template jigs are normally used for accuracy rather than speed. This type of jig fits over, on, or into the work and is not usually clamped Figure

Bad Answer: Going negative - if the candidate starts trash talking other candidates, it's a sure sign of a bad attitude. Also, if they can't provide a solid answer, it may show that they lack thorough knowledge of the skills the job requires, and an understanding of where they fit in. Good answer: The candidate can name specific skills, abilities or understandings they have that apply directly to the job that other candidates are unlikely to have, or are in short supply. Is This Answer Correct? Candidates without specific examples often do not seem credible. However, the example shared should be fairly inconsequential, unintentional, and a learned lesson should be gleaned from it. Moving ahead without group assistance while assigned to a group project meant to be collaborative is a good example.

questions in Section A. For Section B, answer three (3) question only. 6. Answer all (c) Classify the purpose of jig illustrated in the Figure 1 below. PART.

Jig and fixtures

In this page you will find Iti fitter multiple choice questions paper with answers pdf for jigs and fixtures chapter. Also here you will find iti fitter , iti fitter jobs , iti fitter book , iti fitter syllabus , iti fitter government jobs , iti fitter question paper , iti fitter course , iti fitter theory , iti fitter trade , iti fitter apprentice , For iti jobs , iti fitter , Fitter iti , Iti mcq , Iti online exam , Iti course. Which one of the following jigs consists of drill plate, which rests on the component to be drilled. Which one of the following is used to clamp the job in relation to the tool in mass production. Subscribe our newsletter for latest jobs, latest post update and important information, Enter your full name and email id and click to Subscribe.

A jig is a work-holding device that holds, supports, and locates the workpiece and guides the one or more tools to perform a specific operation. Fixtures are the work holding devices, which holds, supports and locates the workpiece but not guides the cutting tool to perform a specific operation. Fixture is used for the convenience of fabrication of a job by welding which is set in this device so that it can be swiveled around Degree as per requirement. Usually drill jig is not clamped to the drilling machine table because, it is rigid enough for this operation. Bush is used in drill jig for locating accurately and guiding the drill for precise drilling operation.

Jig and fixtures are made from a variety of the materials. There are times where the metals are hardened to resist wear and tear. From Wikibooks, open books for an open world. Most suitable for most jigs applications as it is the most economical and most widely used material in jigs and fixtures.

Jigs and Fixtures - Mechanical Engineering (MCQ) questions and answers

The use of jigs and fixtures a Facilitates deployment of less skilled labour for production b Eliminates pre-machining operations like marking, measuring, laying out etc.

MCQ's on Jigs & Fixtures.docx

Этот фонд, всемирная коалиция пользователей компьютеров, развернул мощное движение в защиту гражданских свобод, прежде всего свободы слова в Интернете, разъясняя людям реальности и опасности жизни в электронном мире. Фонд постоянно выступал против того, что именовалось им оруэлловскими средствами подслушивания, имеющимися в распоряжении правительственных агентств, прежде всего АНБ. Этот фонд был для Стратмора постоянной головной болью. - Не вижу ничего нового, - сказала Сьюзан.  - В чем же чрезвычайность ситуации, из-за которой вы вытащили меня из ванной. Какое-то время Стратмор задумчиво нажимал на клавиши мышки, вмонтированной в столешницу письменного стола. После долгой паузы он наконец посмотрел ей в глаза и долго не отводил взгляда.

 - Сюрреализм. Я в плену абсурдного сна. Проснувшись утром в своей постели, Беккер заканчивал день тем, что ломился в гостиничный номер незнакомого человека в Испании в поисках какого-то магического кольца. Суровый голос Стратмора вернул его к действительности.

Держитесь. Скоростной карт фирмы Кенсингтон повернул за угол и остановился. Сзади, перпендикулярно туннелю, начинался коридор, едва освещаемый красными лампочками, вмонтированными в пол. - Пойдемте, - позвал Бринкерхофф, помогая Сьюзан вылезти. Она шла следом за ним точно в тумане.

Jig is used for boring operation. Answer Explanation.

TEACHING TOPICS: The Teaching of Jig and Tool Design

Беккер не мог исчезнуть, тем более так. Халохот оглядел дворик. Он. Он должен быть .

Ему в голову пришла другая мысль.  - Вы дежурили все это время. - Моя смена от семи до семи, - кивнула женщина.

 Это сделаю я, - сказал он, встал и, спотыкаясь, начал выбираться из-за стола.

Представь себе мое изумление, когда я обнаружил множество сообщений Энсея Танкадо.  - Стратмор приподнял брови.  - В них постоянно упоминается Цифровая крепость и его планы шантажа АНБ. Сьюзан отнеслась к словам Стратмора скептически. Ее удивило, что он так легко клюнул на эту приманку.

Беккер повернулся и увидел человека в красном одеянии. Тот вскрикнул и испуганно посмотрел на Беккера. Как кот, пойманный с канарейкой в зубах, святой отец вытер губы и безуспешно попытался прикрыть разбившуюся бутылку вина для святого причастия. - Salida! - крикнул Беккер.  - Salida.


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(C) reduced manual handling operations. (D) All of the above. (Ans: D). 3-The following is(are) the function(s) of a jig. (A) Holding. (B) Locating.

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Iti fitter multiple choice questions paper with answers pdf for Iti jobs. 1. Lathe mandrels A. Jig. B. Fixture. C. Gauge. D. Template. Answer. Ans – B. show less​. 2.

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