When approaching calculations on the exam, which should be prioritized first?

• A. Memorization of formulas first.
• B. Judgment first, math second.
• C. Full derivation of every step first.
• D. Speed and approximate results first.

Answer: (B)

Before doing calculations, focus on judging the problem first. Quickly identify what is known, what needs to be found, and which relationships or standards apply. This planning step shows you which formulas or equations to use and helps you check units, magnitudes, and the reasonableness of the result. When you have a clear approach, you can perform the math confidently and save time by avoiding unnecessary work or misapplied formulas.

Relying on memorization alone misses context and can lead to using the wrong formula in a given situation. Jumping straight into full derivations wastes time and isn’t required on most exam problems where recognizing the correct method is enough. Pushing for speed or a rough approximation before you’ve set up the problem and checked units can produce errors that are costly in engineering calculations, especially in wind and roofing contexts where accuracy matters. Start with a solid judgment of the problem, then apply the math carefully and efficiently.