Exam (elaborations)
Mechanical Hvac practice test questions and answers
- Course
- Institution
A separate and distinct ventilation or exhaust system shall be provided for _____? (A)noxious gases (B) corrosive fumes (C)flammable vapors (D) incompatible materials. - correct answer-D. 505.1.2 In systems conveying flammable vapors, gases, or mists, the concentration shall not exceed 25 percent o...
[Show more]