Free Journeyman Plumber Exam Questions That Helps Candidates Pass

OSHA requires that portable power tools used in wet or damp conditions have GFCI protection to prevent electrocution. Journeyman exams test this because plumbers frequently work in wet environments where electrical hazards exist.

No-hub cast iron pipe is joined using mechanical banded couplings with stainless steel clamps and neoprene sleeves. Journeyman exams test this because using incorrect couplings results in inspection failure.

Horizontal copper tubing up to 1 inch must be supported at intervals not exceeding 6 feet. Proper support prevents sagging and stress on joints. Journeyman exams test this because inspectors check spacing during installation.

An expansion tank absorbs excess pressure created by thermal expansion in closed water supply systems. Journeyman exams emphasize this requirement since inspectors always check for expansion tanks on water heater installations.

Roof drain strainers keep leaves and debris out of roof drains, preventing blockages. Journeyman exams test this because clogged roof drains are a common cause of roof flooding and structural damage.