Test Practice Questions Review For The Certified Energy Manager Exam Cards - Certified Energy Manager Exam Flashcard Study System Cem

Subtitle: CEM Test Practice Questions & Review for the Certified Energy Manager Exam

If NPV > 0 → accept project (earns more than hurdle rate). If NPV < 0 → reject. Subtitle: CEM Test Practice Questions & Review for

Note: May produce multiple values for non-conventional cash flows. Which ASHRAE Standard defines energy baseline and modeling for commercial buildings? Card 12 – Back A: ASHRAE Standard 90.1 (Energy Standard for Buildings Except Low-Rise Residential) — particularly Appendix G for Performance Rating Method. Which ASHRAE Standard defines energy baseline and modeling

Exception: Reduced I²R losses in cables can slightly lower kW — usually negligible. Define: Degree-Day method for estimating heating energy. Card 9 – Back A: Heating Energy (MMBtu) = (HDD × UA × 24 hr/day) / (System Efficiency × 10^6) Define: Degree-Day method for estimating heating energy

= (200 × 0.75 × 0.746) / 0.90 = (111.9) / 0.90 =

Savings = $2,000,000 × 0.08 = $160,000 ROI = ($160,000 / $250,000) × 100 =

Note: Power factor (0.85) not needed for kW calculation — only for kVA. Term: Chilled Water Reset Card 4 – Back A: A control strategy that increases chilled water supply temperature as cooling load decreases (e.g., from 44°F to 50°F at part load).