Discussion
Assertion (A): Hand idealisations remain valuable alongside finite element models.
Reason (R): They force the analyst to decide explicitly what carries what.
Select the correct answer from the options below.
Answer: C
Correct answer: Both A and R are true, and R is the correct explanation of A
Both are true and the reason gives the value. Building an idealisation forces a decision about what carries what - which member takes the bending, which the shear, where the load enters and how it reaches the supports. A finite element model can be built and run without ever making that decision explicitly, which is why it can produce a plausible answer to a badly posed problem. The hand model is the check on the thinking, not on the arithmetic.
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