Answer :
Final answer:
Fire detection systems should be tested and adjusted annually, except for factory-calibrated detectors which don't need post-installation adjustments. This ensures reliability and proper operation, although local regulations and manufacturer recommendations may vary. So, the correct option is A.
Explanation:
The question pertains to the recommended frequency at which fire detection systems should be tested and adjusted to ensure their reliability and proper operating condition. It specifies a scenario excluding factory-calibrated detectors, which do not require adjustment after installation. Among the options provided, annually, biannually, quarterly, and monthly, the correct frequency for testing most fire detection systems is typically annually. This means that such systems should undergo comprehensive testing and any necessary adjustments once every year to maintain their effectiveness in detecting fires. However, it is essential to note that specific requirements can vary based on local regulations, the specific type of fire detection system, and recommendations from the manufacturer or fire safety professionals.
