A professional who fabricates brick and tile samples and tests samples for conformance to strength specifications. Respnsibilities include:

• Starts machines that grind, sift, and mix clay.
• Molds brick and tile samples, using mold, hand rammer, and trowel.
• Places models in kiln burner and turns switches or valves to heat kiln to specified temperature.
• Removes samples from kiln and places samples on testing machine supports.
• Turns handwheel to force bearing plate against samples.
• Reads gauge to obtain transverse breaking load in pounds per square inch, and records data.
• Inspects products for size, cracks, and other imperfections, using hammer and notched rule.
• May test products for strength, using testing machine.