Mortise locks are typically found in building entrance doors, office doors, and which of the following?

• A. Exterior gates
• B. Vehicle doors
• C. Storage closets
• D. Garage doors

Answer: (C)

Mortise locks are installed by fitting the lock mechanism into a recessed pocket in the door, which makes them sturdy, secure, and visually clean. This setup is ideal for interior doors that need solid security without bulky hardware, such as building entrances, office doors, and doors to storage spaces. Exterior gates and vehicle doors usually use different locking systems designed for outdoor exposure or automotive construction, while garage doors require specialized hardware. Storage closets fit the pattern well because they are interior doors that benefit from a reliable, keyed or privacy-locking mechanism without the extra hardware on exterior or vehicle doors.