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Ontario Gas G1 Practice Exam Prep B149.3-10 Questions and answers with 100% Complete Solutions | verified &updated 2024
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Ontario Gas G1 Practice Exam Prep B149.3-10 Questions and answers with 100% Complete Solutions | verified &updated 2024 What is the first action 'to be taken when performing an ignition spark response test? - Close test firing valve and pilot valve A valve not considered 100% shutoff - Butterfly ...
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