PPI HVAC and Refrigeration Six-Minute Problems – Comprehensive Practice Problems for the NCEES PE Mechanical HVAC & Refrigeration Exam

**October 25, 2019 is the Last Open-Book PE Mechanical Exam**

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Beat the Clock on the PE Mechanical Exam
With an average of only six minutes to solve each problem on the PE Mechanical exam, speed and accuracy are vital to your success—and nothing gets you up to speed like solving problems.

HVAC and Refrigeration Six-Minute Problems prepares you to answer even the most difficult morning and afternoon HVAC and refrigeration problems in just minutes. Learning important strategies to solve these problems quickly and efficiently is the key to passing the PE Mechanical exam.

HVAC and Refrigeration Six-Minute Problems will help you pass with:

• 85 multiple-choice problems similar in format and difficulty to the actual exam
• 20 morning (breadth) problems and 65 afternoon (depth) problems
• step-by-step solutions outlining how to answer problems quickly and correctly
• explanations of the three “distractor” answer choices and how to avoid common errors
• hints for all problems

• Compressible Flow
• Energy Balances
• Equipment and Components
• Fluid Mechanics
• Heat Transfer
• Psychrometrics
• Supportive Knowledges
• Systems
• Thermodynamics