Pass the International Code Council Commercial Inspector M2 Questions and answers with CertsForce

The IFGC section on test medium states that the test medium shall be air, nitrogen, carbon dioxide or an inert gas , and specifically states that oxygen shall not be used as a test medium . That makes C the correct answer.

For a Type B gas vent with a listed vent cap terminating through a flat roof , the minimum required termination height is 1 foot above the roof . That makes Option A correct. This is consistent with gas vent termination tables used with listed Type B vent systems and the code framework for Type B vent terminations.

For materials such as pipe and duct insulation within plenums, the IMC references ASTM E84 or UL 723 for surface-burning characteristics, along with the flame-spread and smoke-developed limits applicable to plenums. ASTM B84 is not the referenced plenum test standard here, so it is the incorrect condition and therefore the correct exam answer to the “except” question. This makes Option C correct.

Corridor damper testing under the referenced standard requires acceptable closure performance at 150 fpm across the face of the damper. Therefore Option C is correct.

The IMC requires access openings for fire dampers to be of a size that allows maintenance and resetting of the damper . The code does not set the answer as same-as-duct, half-diagonal, or a universal 12-inch by 12-inch opening. So Option C is correct.