summary roughed in

app/models/candidate.rb

@@ -1,6 +1,6 @@
 class Candidate < ApplicationRecord
   belongs_to :quiz
-  has_many :questions, through: :quiz
+  has_many :questions, -> { order("sort") }, through: :quiz
   has_many :answers
   belongs_to :recruiter, class_name: "User"
 

app/models/quiz.rb

@@ -1,4 +1,4 @@
 class Quiz < ApplicationRecord
-  has_many :questions
+  has_many :questions, -> { order(:sort) }
   has_many :candidates
 end