CLC Lighting Controls & Technologies 2

Question 1

Which DALI command group allows a lighting controller to broadcast a single command to all ballasts on the bus simultaneously?

Accepted Answer

Broadcast address (255)

Answer

In DALI, the broadcast address (255) sends a command to every device on the bus without addressing individual short addresses.

Question 2

A 0–10V dimming control signal at 0V typically results in what lamp behavior?

Accepted Answer

Full off or minimum dim level per ballast specification

Answer

A 0V signal on a 0–10V system drives the ballast to its minimum dim level or full off, depending on manufacturer implementation.

Question 3

In a Lutron RadioRA 2 wireless system, what is the maximum number of devices supported per system?

Accepted Answer

200 devices

Answer

Lutron RadioRA 2 supports up to 200 devices per system, making it suitable for mid-sized residential and small commercial applications.

Question 4

Which sensor technology is MOST reliable for detecting fine motor movements such as typing at a desk?

Accepted Answer

Dual-technology combining PIR and ultrasonic

Answer

Dual-technology sensors combining PIR and ultrasonic are most reliable for fine motion, as PIR alone can miss small movements while ultrasonic alone may cause false triggers.

Question 5

What is the primary advantage of a networked lighting control system over a standalone relay-based system in a large commercial building?

Accepted Answer

Centralized monitoring, scheduling, and energy reporting across all zones

Answer

Networked systems enable facility managers to monitor energy use, adjust schedules, and diagnose faults from a single interface across the entire building.

(CLC) Certified Lighting Consultant Practice Test

(CLC) Certified Lighting Consultant Practice Test

CLC Lighting Controls & Technologies 2