Scenarios _old

Question 1

A type of recessed LED light panel is going to be installed in an open concept office with 8ft cieling. The spacing criteria is 1.27 from the manufacturer. Which of the below is NOT a good spacing layout.
A. 8ft by 8ft
B. 8ft by 10ft
C. 10ft by 10ft
D. 12ft by 12ft

Answer 1

D. The maximum on-center spcing of the light panel is 8ft x 1.27 = 10.16 ft. Any spacing beyond this value is not going to provide good uniformity

Question 2

A lighting practitioner is designing a new car dealership to meet LEED requirements. The owner wishes to leave all of the parking lot luminaires on after business hours. Which of the following LED lighting control systems is MOST appropriate?
A. on/off switched
B. dimming fluorescent
C. dimming ceramic metal halide
D. photocell
E. Occupancy Sensor

Answer 2

B. Dimming Ceramic Metal Halide

Question 3

An energy-saving measure reducing lighting demand by 24.5 kW costs $11,000 to install. Given 4,000 annual operating hours and $0.085 per kWh, what is the simple payback?
A. 0.8 years
B. 1.3 years
C. 3.8 years
D. 4.3 years

Answer 3

B. 1.3 years

Question 4

The 15’ x 20’ lobby has a 10” plenum depth and a ceiling height of 9’ AFF. Artwork is displayed on the walls. Which of the following combinations is the MOST appropriate lighting system?
Ambient / Accent:
A. 2’ x 2’ volumetric troffers / wall washers
B. two-tier chandelier / track lighting
C. surface-mounted decorative bowls / linear wall grazers
D. recessed downlights / recessed adjustable

Answer 4

D. recessed downlights / recessed adjustable

Question 5

A 50MR16/SP10 with a centre beam candlepower of 8800 candelas will produce how many lux 10 meters             away? 
A. 10
B. 8
C. 88
D. 98

Answer 5

C. 88 (Need to confirm)

Question 6

What is the RCR of a space that is 40’ wide x 60’ long x 9.5’ high with a work-plane at 2.5’ and a ceiling reflectance of 80%?
A. 343
B. 14.6
C. 1.46
D. 6.7

Answer 6

C. 1.46