ยง 44. Competitive  class.  The  competitive  class  shall  include all
  positions for which it is practicable to determine the merit and fitness
  of  applicants  by  competitive  examination,  and  shall  include   all
  positions  now  existing  or  hereafter  created, of whatever functions,
  designations or compensation, in each and every branch of the classified
  service,  except  such  positions  as  are  in  the  exempt  class,  the
  non-competitive class or the labor class.