Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format. 98-Civ-B6 Urban and Regional Planning, National Examinations, May 2015. Three hours, CLOSED BOOK, calculator permitted (approved Casio or Sharp models only). Ten questions are printed. Questions 1 and 2 are compulsory and worth 25 marks each; the candidate then answers FIVE of the remaining questions at 10 marks each, for a paper total of 100 marks. Either SI or Imperial units may be used, and most questions require an essay-format answer in which clarity and organization are themselves marked.
Check — a printed inconsistency in the paper. The Part B header reads “ANSWER FIVE (5) OF THE FOLLOWING SEVEN (7) QUESTIONS,” but Part B actually prints EIGHT questions (Questions 3 through 10). The front-page instruction — “the first TWO (2) questions plus FIVE (5) of the remaining questions constitutes a complete paper” — is the governing one, and it is consistent with the printed count. On exam day the correct response is to note the discrepancy in the answer booklet under Note 1 (“submit a clear statement of any assumptions made”) and answer any five of Questions 3–10. Every question is answered in full below, because this document is a study resource rather than a submitted paper.
Reference texts for 16-Civ-B6 / 98-Civ-B6.
Because this is an essay paper, the answers below are written as continuous argued prose rather than in the numbered-step calculation format used for quantitative subjects. Enumerated lists appear only where the question itself asks for a list of a stated length.