Explain four factors a designer considers when... | Design & Technology: Product Design 9252 | Paper 1 Mock 01 | Technical, designing and making principles

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Explain four factors a designer considers when selecting a standard component from a supplier's catalogue. [4]

Answer

Answer Details

When choosing a catalogue component, the designer must ensure that it fits the product and will work reliably in real use. Any four factors are:

Its rated performance, such as load, speed or current, must exceed the application's demand with a safety margin [1].
Its dimensions and mounting arrangement must fit the available space and mating parts [1].
It must withstand the operating environment, including temperature, moisture and chemicals [1].
It should be available from more than one supplier and remain in production for the product's expected life [1].
Its unit cost must be acceptable at the required production quantity [1].

A rated value equal to the expected demand gives no margin for variation or unexpected loading.

Explain four factors a designer considers when selecting a standard component from a supplier's catalogue. [4]