All candidates shall possess the general qualification of integrity, honesty, sobriety, dependability, industry, thoroughness, accuracy, good judgment, initiative, resourcefulness, courtesy, ability to work cooperatively with others, willingness and ability to assume the responsibilities and to conform to the conditions of work characteristic of the employment, and shall be able to perform the essential functions of the job as defined in any county specifications for the position. The foregoing general qualifications shall be deemed to be a part of the minimum qualifications of each classification and need not be specifically set forth therein.