Any person who, for the purpose of defeating, or obstructing the provisions and purpose of this act, shall:
(a) willfully, by himself or in co-operation with one or more persons defeat, deceive or obstruct a person in respect to his right of taking a test for a certificate of qualification; or
(b) willfully or corruptly or falsely mark, rate, grade, estimate or report upon the test or proper standing of a person tested, or aid in so doing or willfully make any false representation concerning the same or the person tested; or
(c) willfully and corruptly furnish to a person special or secret information for the purpose of either improving or injuring the prospects or chances of a person tested or certified or being tested or certified; or
(d) willfully impersonate another person or permit or aid another person to impersonate him in any test or appointment or request to be tested, certified or appointed;
shall be guilty of a misdemeanor.