VIP Exclusive
CEM Certified Energy Manager VIP Practice Exam
CEM — The Certified Energy Manager (CEM) credential is issued by the Association of Energy Engineers (AEE). The real exam consists of 180 multiple-choice questions administered over 4 hours, with a passing score of approximately 70%. It covers energy auditing, electrical systems, HVAC, lighting, building envelope, energy economics, boilers/steam, motors, compressed air, cogeneration, and energy management programs.
30
Questions
90m
Time Limit
70.00%
To Pass
Question 1 of 30👑 VIP
A facility energy manager is evaluating the installation of a variable frequency drive (VFD) on a 75-hp centrifugal pump motor that currently runs at full speed 8,760 hours per year. After load profiling, the manager determines the pump only needs to operate at 80% of full speed on average. Assuming the affinity laws apply and electricity costs $0.085/kWh, approximately how much energy (kWh) would be saved annually compared to throttling the flow with a discharge valve?
Questions 2–30 and full explanations are VIP-exclusive.