Which of the following are typically found in building entrance doors, office doors, and storage closets?

Which of the following are typically found in building entrance doors, office doors, and storage closets?

• A. Rim locks
• B. Mortise locks
• C. Deadbolt locks
• D. Cylindrical locks

Answer: (B)

Mortise locks are designed to be installed inside a pocket cut into the door edge, so the lock mechanism sits inside the door with a robust, integrated hardware set for a door handle and latch. This built‑in, sturdy configuration is ideal for high-traffic or security‑reliant doors like building entrances, offices, and storage closets, where a single, durable unit can provide reliable key access, privacy, and various function options without protruding hardware. Rim locks sit on the surface of the door and are typically lighter‑duty, so they’re less favored for heavy‑use or high‑security doors. Cylindrical locks are common on residential interior doors and lighter exterior doors and don’t offer the same level of durability or integration as a mortise setup. Deadbolts provide strong security but are usually used as a separate, standalone bolt on exterior doors or in combination with other hardware, rather than as the standard, all‑in‑one lock for a variety of door types.

Mortise locks are designed to be installed inside a pocket cut into the door edge, so the lock mechanism sits inside the door with a robust, integrated hardware set for a door handle and latch. This built‑in, sturdy configuration is ideal for high-traffic or security‑reliant doors like building entrances, offices, and storage closets, where a single, durable unit can provide reliable key access, privacy, and various function options without protruding hardware. Rim locks sit on the surface of the door and are typically lighter‑duty, so they’re less favored for heavy‑use or high‑security doors. Cylindrical locks are common on residential interior doors and lighter exterior doors and don’t offer the same level of durability or integration as a mortise setup. Deadbolts provide strong security but are usually used as a separate, standalone bolt on exterior doors or in combination with other hardware, rather than as the standard, all‑in‑one lock for a variety of door types.