CEM Floor Plan Development 3

Question 1

When performing a lighting energy analysis from floor plans, what is the standard unit used to express lighting power density (LPD)?

Accepted Answer

Watts per square foot (W/ft²)

Answer

Lighting Power Density (LPD) is expressed in watts per square foot (W/ft²) and is used to compare installed lighting against code maximums.

Question 2

A floor plan indicates open-plan office spaces adjacent to private perimeter offices. What daylighting strategy best leverages both space types?

Accepted Answer

Lowering partition heights to allow daylight to penetrate from perimeter into the open-plan interior

Answer

Lower partitions allow daylight from perimeter windows to reach deeper into open-plan areas, reducing artificial lighting energy use.

Question 3

What floor plan characteristic most directly determines the 'window-to-wall ratio' (WWR) used in energy calculations?

Accepted Answer

Total glazed area divided by total gross wall area on each facade

Answer

WWR is the ratio of total glazed area to total gross wall area on a given facade, directly affecting solar heat gain and infiltration calculations.

Question 4

On a floor plan, a building has 'internal load-dominated' spaces like data centers adjacent to 'skin load-dominated' perimeter offices. What is the key HVAC zoning implication?

Accepted Answer

They must be on separate HVAC zones because their conditioning needs conflict throughout the year

Answer

Internal load-dominated spaces need year-round cooling while skin-dominated spaces need heating in winter, requiring separate zone control to avoid energy waste.

Question 5

An energy audit floor plan shows that a manufacturing facility has no vestibules at its main entry doors. What energy problem does this indicate?

Accepted Answer

Excessive air infiltration and pressurization losses every time doors open

Answer

Without vestibules, each door opening creates a direct air exchange between conditioned interior and outdoor conditions, increasing infiltration losses.

(CEM) Certified Emergency Manager Practice Test

(CEM) Certified Emergency Manager Practice Test

CEM Floor Plan Development 3