Successful choral directors are typically expert musicians who are accomplished in the field of music. Depending on their employer, directors may be required to have some type of formal training in a related major, such as music or music education.
The term false alarm is actually a misnomer, and is regularly replaced by the term nuisance alarm. When a sensor operates, it is hardly false, and it is usually a true indication of the present state of the sensor.
Security alarm. A security alarm is a system designed to detect intrusion â unauthorized entry â into a building or area. Security alarms are used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as well as personal protection against intruders.