21. Occupation.
Full and precise details of the occupation should be given in columns (b) or (h). Terms such as scientist, technician, engineer, machinist, foreman, inspector, checker, civil servant, are too vague and should not be used by themselves. Managers or foremen should give the department where applicable; civil servants and other public officials should give their rank and the department or branch in which they are serving.
If a job is known in the trade or industry by a special name, use that name.