CTI Tile Layout & Design 5

Question 1

When installing tile around a bathtub, the layout should be planned so that:

Accepted Answer

Full tiles start at the tub deck and cuts are at the ceiling

Answer

Starting full tiles at the tub deck—the most visible horizontal surface—places any cuts at the ceiling where they are less noticeable.

Question 2

In a checkerboard pattern using two contrasting tile colors, how should the installer lay out the pattern to ensure balance?

Accepted Answer

Center the layout so that cut tiles of both colors are equal at opposite walls

Answer

Centering a checkerboard layout ensures symmetrical cut tiles of both colors at opposing walls, creating a balanced visual effect.

Question 3

The TCNA method for determining a 'true center' of a room involves:

Accepted Answer

Snapping two diagonal lines from corner to corner; their intersection is the center

Answer

Snapping diagonal chalk lines from corner to corner creates an X whose intersection marks the geometric center of a rectangular room.

Question 4

When installing tile on a floor with radiant heat cables already in place, the installer must:

Accepted Answer

Avoid cutting or damaging the heating cables during layout and setting

Answer

Radiant heat cables embedded in mortar must not be cut, kinked, or damaged during tile installation, or the entire system may fail.

Question 5

A tile with a 'rectified' edge differs from a standard tile because it:

Accepted Answer

Has been precision-cut after firing for tighter, more uniform grout joints

Answer

Rectified tiles are mechanically cut to precise dimensions after firing, allowing grout joints as narrow as 1/16 inch with consistent alignment.

(CTI) Certified Tile Installer Practice Test