Chapter 35 Layout And Construction Of The Floor Frame

The ends of the girders are supported in the foundation wall by a ____.

• chair

• pocket

• shoe

• tongue

Answer explanation

The correct choice is 'pocket' as girders are supported in the foundation wall by a pocket.

Floor joists are ____ members of a frame.

• circular

• diagonal

• horizontal

• vertical

Answer explanation

Floor joists are horizontal members of a frame, providing support for the structure above. They run parallel to the ground, distributing the load evenly.

Too much overlap of joists at the girder will cause ____.

• squeaking

• the floor to sag

• too much weight to be placed on the girder

• All of the above

Answer explanation

Too much overlap of joists at the girder will cause squeaking, indicating that the correct answer is squeaking.

Joists should rest on at least ____ of bearing on wood.

• 1/2 inches

• 1 inch

• 1 1/2 inches

• 2 inches

Answer explanation

Joists should rest on at least 1 1/2 inches of bearing on wood, as it provides adequate support for the structure.

When floor joists are laid out, the X on the side of the line indicates ____.

• the crown of the joist

• a mistake was made and X’d out

• the side of the line the joist is to be placed

• an anchor bolt location

Answer explanation

The X on the side of the line indicates the side of the line the joist is to be placed.

To lay out the OC joists, the first one is set back a distance equal to ____.

• one-half the joist thickness

• the width of a joist

• the thickness of a joist

• 3/4 inch, always

Answer explanation

The first OC joist is set back a distance equal to one-half the joist thickness, ensuring proper spacing for the layout.

Heavy beams that support the inner ends of floor joists are called ____.

• bridging

• girders

• subflooring

• studs

Answer explanation

Girders are heavy beams that support the inner ends of floor joists, making them the correct choice for this question.

To take up irregularities between the foundation and the sill, use ____.

• plywood

• particle board

• earth

• sill sealer

Answer explanation

To take up irregularities between the foundation and the sill, the correct choice is to use sill sealer.

Notches in the bottom or top of sawn lumber floor joists should not exceed ____ of the joist depth.

• one-twelfth

• one-eighth

• one-sixth

• one-third

Answer explanation

Notches in the bottom or top of sawn lumber floor joists should not exceed one-sixth of the joist depth, as per construction guidelines.

The minimum and maximum lap of joists over the girder are ____.

• 2 inches and 10 inches

• 3 inches and 12 inches

• 4 inches and 14 inches

• 5 inches and 16 inches

Answer explanation

The correct answer is 3 inches and 12 inches as the minimum and maximum lap of joists over the girder.