Skip to content

AZ ROC Boilers, Steamfitting & Process Piping (C-4/CR-4)

Arizona ROC C-4/CR-4 Boilers, Steamfitting and Process Piping Examination

100 questionsEnglishFree practice

Start here

Take a five-question warm-up.

Get explanations as you go. Your progress saves in this browser.

Full question bank

Work through all 100 questions at your pace.

Open question bank

Focus your practice

Practice by topic

Boilers20 questions Gas Piping12 questions Process Piping12 questions Steam And Hot Water Piping12 questions Burners10 questions Controls10 questions Flues And Vents8 questions Sizing And Estimating8 questions Testing And Inspection8 questions