The latest carefully selected questions and answers ○ × Mock test app!
Are you studying with an app that hasn't updated the latest issues?
This is the only application that covers the past questions of the Dangerous Material Operator Class A test.

[Recommended for people like this]
・ Persons who are aiming for a qualification test for handling hazardous materials of type A
・ I want to acquire Class B 4
・ People who want to pass the exam as soon as possible
・ I want to learn repeatedly
・ People who want to pass in the gap time
・ I want to study using commuting time
・ I want to study well
・ People who want to study with a smartphone app