クレーン デリック運転士 2025年4月

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 study past questions of the Crane/Derrick Operator Qualification Exam published in April 2025 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.