Florida Plumbing Contractor - Isometric Class (In-Person)

Please follow the Florida Department of Health Covid-19 Guidance Recommendations for in-person classes.

1ExamPrep has helped thousands of students master isometric drawings and pass the Florida Plumbing Contractor exam. The plumbing exam includes 5 isometric drawings worth 10 points each. This 4 hour in-person class makes isometric drawings easy by walking you through step-by-step detailed instructions so you can gain the skills you need to conquer isometric drawings and pass your exam. 

Isometric Drawing Portion of the Plumbing Exam: 

Each of the isometric drawings is worth up to a maximum of 10 points. Based on the criteria listed below, each drawing will be independently evaluated by three graders. At least two of the graders must agree that a criterion is correct in order for that criterion to be graded as correct and points to be awarded. If one or more criterion is determined to be incorrect by at least two of the graders, points will not be awarded for that criterion. The awarded points for all criteria will be summed and converted to a 10 point scale to determine the score for each drawing.

The following are the criteria and points used by the graders to evaluate each of the five isometric drawings.

a. Legibility. Drawing is clear and readable. Drawing is sufficient in size. Lines and labels are distinguishable. (8 points)

b. Orientation. All fixtures are shown in the correct location relative to each other. (20 points)

c. Flow. Direction of flow is shown when going from vertical to horizontal. The direction of flow must be indicated even if the direction is implied for all waste lines and all fixture connections. Direction of flow is not required for vent lines. (12 points)

d. Angles. Isometric drawing uses 30-60-90 degree angles. All angles used on the drawing are displayed at the appropriate orientation. (8 points)

e. Piping. All pipes, fittings, traps, clean-outs, and similar portions of the piping structure are included on the drawing. All piping is shown exactly as on the drawing (regardless of specific code requirements). The piping must display the correct elevation in reference to the floor plan. (20 points)

f. Labeling. All fixtures are labeled according to the legend provided in the examination instructions. (4 points)

g. Vents. All vents are properly indicated. (16 points)

h. Fixtures. All fixtures shown on the floor plan are appropriately indicated on the isometric drawing. (12 points)

2021 Plumbing Exam Dates and Deadlines: 

The plumbing (trade knowledge) examinations are administered in paper and pencil format multiple times per year in Orlando only. To register for the exam visit www.floridaexam.com

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