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Limitations And Consequences Of Pictorial Drawings

Engineering drawing techniques benefits and limitations?

Perspective drawings give you a realistic eye-view of an object.
Perspective is especially good for buildings.
Perspective drawings would be good to show clients.

Orthographic projection shows front, side, and top view.
It is ideal for machinists to see how to make a part.
It is precise in that it shows a view straight on without weird angles.

Oblique and isometric views simulate perspective views
Oblique shows a clear, exact view of the front
Isometric makes it easy to visualize the part even to the untrained eye

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Explain the benefits and limitation of using pictorial techniques?

To explain even the simplest things, the people involved must naturally begin to model the object in their mind's eyes. This is due to the way that we all think. However it often happens, as the explanations and discussions proceed, these models tend to become more complex and to mutate. Consequently, what started as a straight-forward discussion becomes an argument where one or more sides later envisage different forms of the object compared to what they started with.

For this reason there is a distinct advantage in using graphical (pictorial) techniques. If the object (and model) can be represented by a picture which all parties can see, then the above difficulty is avoided and it is for this reason that many technical subjects, and a lot of philosophical ones too, require the use of diagrams etc.

The limitations are when the way that the diagram is drawn ceases to be of value, due to the abstract nature of the object or when it becomes too complicated to see what is happening in simple terms.

What are the benifits and limitations of using pictorial techniques to represent engineering drawings?

The main benefit of using a pictorial is that (since it is a 3-d drawing) it is easy to visualize when you see the drawing. with a 1st or third angle projection drawing it can be hard to visualize teh shape in 3d.

Nut a drawback is that you sometimes can not show all sides/dimensions/features since they may be hidden from the perspective.

The best way, imo, is to use a 3rd angle projection with all dimensions and then use a pictorial for clarity.

What are the consequences of not completing the construction project on time in case of government projects in India?

Depends on the cause of delay.The delay can come from the side of the client. Like - Handing over the site before procurement of the the full area. Lateness in architectural and/or structural drawings. Mistakes in such drawings. Changes in such drawings, not being made in time. Increase in quantities. Improper soil investigation. Limitations in working time, sound, etc., not specified in the contract. Necessary permits not being ready. If materials are supplied by clients, not supplying in time. Not paying on time, causing liquidity crunch. Handing over the site in or just before monsoons. Etc. Remember, the contract has to be signed with in a limited time after award and the site has to be handed over with in a limited period after signing of the contract, as per conditions specified in tenders and so the site is handed over to the contractor, even though the site is not condusive for starting work. Day 1 of the scheduled time starts from the day the site is handed over. The contractor is forced to sign, failing which his EMD is forfeited.From force majeure, strikes, closure, breif or long term, as per government or clients orders, labour strikes, etc. are other causes.In both the above cases, the contractor loses escalation and early completion bonus, though they are given extension of time.The third case is due to lapses on the part of the contractor. For this he can be fined upto 10% of contract value, depending on the conditions of contract. Though not applied in India, the client can charge liquidated damages for loss of income, in addition to the fine, which can come to a huge amount.

What are the advantages and disadvantages of using pictorial drawings? ?

Hi I am a Design Engineer - mainly injection moulded parts and tooling, i always out-put some pictorial views with the designs i do and without exception skilled engineers and novices all say its beneficial. After all not everyone can interpret 2d drawings efficiently, but everyone understands a picture and/or model. With modern cad systems (3d that is) its so so easy to create these views and takes little time and effort for loads of benefits

Disadvantages - could include manufacturing and geometric tolerances these would be included in 2d engineering drawings put not be present in pictorial views (usually)

Bottom line - both have their place in industry

What are pictorial techniques?

Masturbation is greatly enhanced with the use of pictures. It helps in the speed of producing "results"

Disadvantages and advantages of oblique and isometric drawing?

disadvantages
1-time difficult to dimension
2-will not show u the back corner if you need to see it
3-many people can't do it

advantages
1-closer to real
2-can show you something that otherwise you cant' see in workability and aeathtics.
3-increase the chances ofselling what u are drawing.

What are the advantages of pictorial sketching over other types of sketching?

I do not think any art form has true advantages over the other. That being said, pictorial sketching has its own peculiarities.1.) You understand a how to represent a 3-D object.Sure there are many technical ways of stating this (isometric, perspective etc). But in the end, it’s all a representation of real-world objects. This practice, in turn, gives you a clear idea of shapes and forms in the world. You can observe better, subsequently, gaining more information from what you observe….This is worth paying attention to.They say it takes 10,000 hours to master a skill but if you understand how diminishing returns effects your practice time you can MASSIVELY cut this down. The trick is to get a clear A->Z rather than a lot of advice from around the internet.When I started I was following various guides and YouTube videos but I obviously wasn’t getting the same results as the videos were. I felt like I was wasting a lot of time and never really knew what I should be working on to improve so I would kind of just do… whatever.If you want a real structured course which focuses on quick results try this: http://drawit.spaceWhat you also want to avoid is stuff that teaches you to draw one or two specific things. Too many people fall into the trap of being able to draw a couple of things well and they never move on from that properly. You want to get a proper foundation in… well, drawing itself so you can choose what you want to draw for yourself.

What are the advantages/disadvantages of pictorial technique in engineering design?

The primary advantage of isometric drawings is that they can provide an overall view of a given part/assembly/design. With the various orthographic views it can be difficult to get a clear picture of how the different views fit together to form the final part.

I would say that the main disadvantage of an isometric drawing would be that it can get cluttered more easily than orthographic views. You CAN use an isometric drawing to show the dimensions, callouts etc. that an orthographic drawing typically shows, but if you're not careful with their placement the drawing can get incredibly messy. This is the advantage of orthographic drawings, that you can break up the technical information among the different views so that no single view gets too cluttered.

Overall I'd say that if you're dealing strictly with engineers or technical people, eg. machinists, then the orthographic views are probably sufficient. They're used to seeing them so interpretation won't be a problem.

If you're dealing with non-technical people, eg. purchasing, then you may want to go with isometric. It will be easier for them to get a better view of what it is you're looking for.

What is isometric drawing?

Isometric drawing is a pictorial representation of an object or a machine part, drawn in such a way that three faces of the object-namely-the front, the top and the side surface are seen simultaneously. Only one view of the object is drawn. This is different from an "Orthographic projection", in which three views of the object are drawn each showing the front, the top and the side surfaces separately. In Engineering, always, the Orthographic drawings are preferred and used. The reason is that the Isometric drawings have limitations as follows-The circle and oval -both will be seen as an ellipse. This may create confusions and produce errors in the manufacturing or other activities. In Orthographic, the circles, oval shapes are seen in their true shapes.A square and a rectangle will both appear as parallelograms on an Isometric view. The Orthographic views show the correct appearances of the shapes.It is difficult to give the dimensions on an isometric view as compared to an Orthographic view.The preparation of an Isometric drawing is relatively cumbersome and time consuming. ***************************

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