Both "no limit" and "crane limit" are supported.Please select "Cranes only" or "No cranes only" under "Knowledge about cranes" and "Relevant laws and regulations" in subject selection.This is an app that allows you to learn past questions of the Crane/Derrick Operator Qualification Exam published in April 2024 in a quiz game format.Answer explanations are included so you can study thoroughly.The content is the same (one time) as the book "Crane/Derrick Operator Past Questions/Answer Explanations" sold by our company.Please do your best.We cannot be held responsible for any damage caused by viewing this app.
クレーン デリック運転士 2024年4月
