CDHT Practice Exam Questions And

Certified Door & Hardware Technician (CDHT) Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which of the following is the most common reason a door does not

latch properly?

• Incorrect hinge placement
• Warped door
• Misaligned strike plate
• Loose handle
• Misaligned strike plate

A misaligned strike plate prevents the latch from fully engaging, causing the door not to latch.

• A mortise lock requires which of the following to operate?
• Key cylinder only 1 / 4

• Lock body only
• Both key cylinder and lock body
• None of the above
• Both key cylinder and lock body

Mortise locks consist of a lock body installed inside the door and a key cylinder that controls the locking mechanism.

• What is the primary purpose of a door closer?
• Decorative enhancement
• Automatic door locking
• Controlled door closing
• Noise reduction
• Controlled door closing

Door closers ensure doors close slowly and securely, preventing slamming and maintaining security.

• Which type of hinge allows a door to swing in both directions?
• Ball bearing hinge
• Continuous hinge
• Double action hinge
• Pivot hinge
• Double action hinge

Double action hinges permit doors to swing both inward and outward. 2 / 4

5. ANSI/BHMA standards primarily provide specifications for:

• Door aesthetics
• Hardware performance and durability
• Building layouts
• Door colors
• Hardware performance and durability

ANSI/BHMA standards define testing and performance requirements for door hardware.

• A cylindrical lock is typically installed in which part of the door?
• Top rail
• Edge of the door
• Door face
• Hinge side
• Door face

Cylindrical locks are mounted through the door face with a latch set in the edge.

• Which type of door is commonly used in high-traffic commercial

areas?

• Hollow core door
• Solid wood door
• Metal door
• Glass door
• Metal door 3 / 4

Metal doors provide durability and security, ideal for commercial and high-traffic areas.

• What is the correct backset for a standard residential cylindrical lock?
• 1-3/8 inches
• 2-3/8 inches
• 2-3/4 inches
• 3 inches
• 2-3/8 inches

The standard backset for most residential cylindrical locks is 2-3/8 inches from the edge of the door to the center of the bore.

• Which of the following is the primary function of weatherstripping?
• Enhance door appearance
• Reduce air and moisture infiltration
• Secure the lockset
• Strengthen the door frame
• Reduce air and moisture infiltration

Weatherstripping seals gaps around doors to improve energy efficiency and comfort.

• What type of cylinder is commonly used in commercial door

hardware for high-security applications?

• Euro profile cylinder
• Mortise cylinder
• Rim cylinder
• / 4