ALOA Door Hardware and Exit Devices 3

Question 1

The most common standard backset measurement for residential cylindrical locksets is:

Accepted Answer

2-3/8 inches

Answer

1-3/8 inches

Answer

3 inches

Answer

2-3/4 inches

Question 2

ADA requirements for door hardware state that it must be:

Accepted Answer

Operable with a closed fist without tight grasping, pinching, or twisting, with no more than 5 lbs of operating force

Answer

Installed between 34 and 48 inches from the floor with a minimum lever length of 4 inches

Answer

Electronic or automated to assist users with mobility disabilities

Answer

Painted a contrasting color to the door for identification by visually impaired users

Question 3

An 'astragal' on a pair of doors is best described as:

Accepted Answer

A vertical molding attached to one door leaf that covers the gap between the two leaves when both are closed

Answer

A spring-loaded hinge that assists the door in returning to the closed position

Answer

A threshold seal installed at the floor level to prevent air infiltration under the door

Answer

A horizontal reinforcement bar bolted across the middle of the door for security

Question 4

A 'continuous hinge' that runs the full height of a door is also commonly known as a:

Accepted Answer

Piano hinge

Answer

Spring hinge

Answer

Pivot hinge

Answer

Barrel hinge

Question 5

The primary factor a locksmith must consider when selecting the correct door closer size is:

Accepted Answer

The door width and weight, along with exposure conditions such as wind or exterior mounting

Answer

The finish and color to match other hardware on the door

Answer

The brand and model of lockset already installed on the door

Answer

The number of hinges currently installed on the door

Question 6

In door hardware terminology, 'backset' refers to:

Accepted Answer

The distance from the edge of the door to the center of the borehole or keyway

Answer

The depth to which the lock body is recessed within the door thickness

Answer

The distance from the finished floor to the center of the lockset

Answer

The clearance gap between the door face and the frame when the door is in the closed position

Question 7

If a door closer is causing the door to slam shut too fast, the correct corrective action is to:

Accepted Answer

Adjust the sweep speed (main speed) valve on the closer body to reduce the closing rate

Answer

Remove the closer unit entirely and replace it with a larger model

Answer

Add rubber door bumpers to the baseboard to absorb the impact

Answer

Tighten all mounting screws on the closer arm and shoe bracket