Ontario Industrial Trades (OIT) Certification Practice Exam

OIT — The Ontario Industrial Trades certification (Certificate of Qualification) exams are administered by the Ontario Ministry of Labour, Training and Skills Development (MLTSD). Each compulsory trade requires a C of Q exam (typically 100 questions, 3 hours, 70% pass mark). This practice set mirrors the core knowledge domains tested across common industrial trades including Industrial Mechanic Millwright (433A), Industrial Electrician (309A), and Machinist (429A), with emphasis on OHSA, WHMIS 2015, mechanical systems, and trade mathematics.