CEM Practice Test 14

10 free CEM practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

CEM Practice Test 14Tutor mode

Question 1 of 10

Distributed Generation & Renewable Energy Systems

A wastewater plant's anaerobic digesters produce 200 scfm of biogas that is 60% methane by volume (methane ≈ 1,000 Btu/scf). An engine-generator converts fuel to electricity at 35% efficiency. About how much electric output can the biogas support?