Which of the Following Is a Directive Used to Create

question 51

Multiple Choice

Which of the following is a directive used to create an "include guard" that allows a program to be conditionally compiled to prevent a header file from accidentally being included more than once?

• A) #include
• B) #guard
• C) #ifndef
• D) #endif
• E) None of these

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Definitions:

Circular Runout

A tolerance that controls the uniformity of a feature's surface as it is rotated about a datum axis.

Eccentricity

Eccentricity refers to the degree to which a geometric shape’s center does not align with a reference axis or point, crucial in designing rotating parts to minimize imbalance.

Cylindricity

A form tolerance that defines how much a cylindrical feature's actual profile may deviate from a perfect cylinder.

Total Runout

Total runout is a tolerance that controls the total variation a surface can have when it is rotated around an axis or datum.