Study for the BICSI OSP Design Test. Prepare using multiple choice questions, with hints and explanations to enhance understanding. Succeed in your exam journey!

Multiple Choice

These cables provide 24 V to which devices?

Low-voltage 24 V is a common power level for distributing power to security and life-safety devices. Cameras are typically fed from a centralized 24 V supply to keep wiring simple and ensure a stable power source for continuous operation. Fire alarm devices—horns, strobes, and other components—are designed to run on a monitored 24 V circuit from the fire alarm control panel, which supports reliable signaling and supervision. Public address systems also use 24 V in many setups to power amplifiers and speakers through the same low-voltage distribution. In contrast, computers usually require higher, or differently sourced, power, and lighting generally uses line voltage or dedicated low-voltage drivers rather than a universal 24 V distribution for these devices.

Low-voltage 24 V is a common power level for distributing power to security and life-safety devices. Cameras are typically fed from a centralized 24 V supply to keep wiring simple and ensure a stable power source for continuous operation. Fire alarm devices—horns, strobes, and other components—are designed to run on a monitored 24 V circuit from the fire alarm control panel, which supports reliable signaling and supervision. Public address systems also use 24 V in many setups to power amplifiers and speakers through the same low-voltage distribution.

In contrast, computers usually require higher, or differently sourced, power, and lighting generally uses line voltage or dedicated low-voltage drivers rather than a universal 24 V distribution for these devices.