Which of the following is the best description of interchangeable parts?
Interchangeable parts were identical parts that could be exchanged for one another in the manufacture of guns, clocks, and other goods. Interchangeable parts were goods that were custom-made by hand using the expertise of skilled workers.
Which of the following is the best description of interchangeable parts Brainly?
The correct answer is B. Interchangeable parts were identical parts that could be exchanged for one another in manufacturing of goods.
What is an example of interchangeable parts?
Interchangeable parts is a basic concept of creating identical or nearly identical parts to be mass produced. These parts can then be put together to form a product. For example, cars, computers, furniture, almost all products used today, are made from interchangeable parts.
What is interchangeable parts in operations management?
Interchangeable parts, identical components that can be substituted one for another, particularly important in the history of manufacturing. Mass production, which transformed the organization of work, came about by the development of the machine-tool industry by a series of 19th-century innovators.
Who would use interchangeable parts?
Interchangeable parts, popularized in America when Eli Whitney used them to assemble muskets in the first years of the 19th century, allowed relatively unskilled workers to produce large numbers of weapons quickly and at lower cost, and made repair and replacement of parts infinitely easier.
What is the definition of interchangeable?
: capable of being interchanged especially : permitting mutual substitution interchangeable parts.
What is selective assembly?
Selective assembly is a cost-effective approach for reducing the overall variation and thus improving the. quality of an assembled product. In this process, components of a mating pair are measured and grouped. into several classes (bins) as they are manufactured.
Which one is an example of selective assembly?
Examples: In interchangeability, the parts randomly selected will fit properly with any randomly selected mating component. In some cases this random assembly is not found to be achieved. For Example.
Why tolerances are given to the parts?
Explanation: Tolerances are provided to the parts because variations in the material properties introduce errors and production machines themselves have inherent inaccuracies. Another reason to introduce tolerance is that it is not possible to make perfect settings by operator so some tolerances are provided.
How do tolerances work?
The tolerance is the difference between the maximum and minimum limits.” This can be shown as upper and lower limits (0.2500over0. 2498) or an allowable amount above and below a nominal dimension (0.2500+0.0000over−0.0002, 0.2499 ±0.0001). Both of these methods define the same range of allowable dimensions.
What is H7 tolerance fit?
For example, in H7/h6 (a commonly-used fit) H7 represents the tolerance range of the hole and h6 represents the tolerance range of the shaft. The potential range of clearance or interference can be found by subtracting the smallest shaft diameter from the largest hole, and largest shaft from the smallest hole.
What tolerance is H7?
| ISO Tolerances for Holes (ISO 286-2) | ||
|---|---|---|
| Nominal hole sizes (mm) | ||
| H7 | +12 0 | +40 0 |
| H8 | +18 0 | +63 0 |
| H9 | +30 0 | +100 0 |
What is tolerance in drawing?
The sizes of parts and overall sizes of assemblies are conveyed by dimensions placed on the drawing. The difference between the acceptable maximum and minimum dimensions given for a hole, shaft, or other feature is known as the tolerance.
What is a basic tolerance?
Basic dimension: A basic dimension is a numerical value used to describe the theoretically exact size, profile, orientation, or location of a feature or datum target. The tolerance associated with a basic dimension usually appears in a feature control frame or a note. …
How many types of tolerance are there?
Today, there are 14 types of geometric tolerances by the number of symbols, and 15 types based on classification. These are grouped into form tolerance, orientation tolerance, location tolerance, and run-out tolerance, which can be used to indicate all shapes.
What are the four types of tolerance?
The types of drug tolerance include pharmacokinetic, pharmacodynamic, psychological, behavioral and tachyphylaxis.
Which size is same for both shaft and hole?
3. 05-09-2014 3 Definitions • BASIC SIZE This is the size about which the limits of particular fit are fixed. It is the same for both “shaft” and “hole”. It is also called the “nominal size”.
Which of the four main geometric characteristics is the most powerful?
Profile locates feature surfaces. Profile is the most powerful characteristic of all, and also controls orientation and form.
How many GD symbols are there?
Currently, we have 16 symbols for geometric tolerances, which are categorized according to the tolerance they specify.
How can you implement tolerance using Autocad?
Select any dimension from drawing area and right click then select properties from the contextual menu. Locate the Tolerances panel and change the upper and lower limit of tolerance from the respective field as shown in the image below.
How many types of tolerance are there in Autocad?
Click on the first box in the Sym panel and select the type of tolerance from 14 tolerance types. Now, click on the first box of the Tolerance 1 panel.
How do I fix my tolerance stack up?
How to overcome problem of tolerance stack-up?
- Consider the process capability of the chosen production process for each custom part and how that affects the tolerance stackup.
- Consider the tolerances of stock components.
- Involve the suppliers, quality, and manufacturing people as soon as possible, getting tolerance and process buy-in earlier rather than later.