With over 575 questions and answers that were taken from previous tests covering A/C, Heating, Ventilation and much more, this is an excellent study guide for anyone preparing for the air conditioning and mechanical contractor's licensing exams. The publication contains chapters on Codes, safety requirements, business and management, legal issues, basic mathematics, and more.

Air Conditioning and Mechanical Trades: Preparing for the Contractor's License Examination

Engineering & Transportation

John Gladstone

Engineering

Pal Publications

<p>This is the perfect resource to help you bid on electrical contracting and repair jobs anywhere. This pocket reference book covers the traditional methods of estimating, as well as the "hurry up" methods, while explaining how and when to use them both. If knowing material and labor costs, in addition to overhead and profit margins, are important to your business, then Electrical Estimating Pal is the right tool for you.</p>

Electrical Estimating Pal: The Professional's Choice (Pal Pocket Reference Series)

Rosenberg, Paul

Reference

Plumbing Pal: The Reference Guide for the Plumbing Industry

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