According to GS 38, what is the maximum size for test instrument tips?

The correct choice indicates that the maximum size for test instrument tips is 4mm, with a preference for tips that are no greater than 2mm. This is important for safety and accuracy during testing procedures, as smaller gauge tips can prevent accidental shorting between conductors and enable more precise measurements. Additionally, using tips that are appropriately sized according to best practices helps ensure that the test equipment can easily make contact with the intended test points without risking damage or creating unsafe conditions.

While larger tips might seem convenient for some applications, they can hinder the ability to test effectively in tight spaces or on delicate components. Therefore, the guidelines emphasize the importance of using smaller, appropriately sized test instrument tips to maintain safety and ensure reliable testing results.