Masonry and Plastering Techniques

What is a proportioned mixture of siliceous materials and cement that hardens into a stonelike mass?

• Mortar

• Plaster

• Cement Mortar

• Gypsum Plaster

What is the main purpose of mortar?

• To glue masonry units

• To provide insulation

• To decorate walls

• To waterproof surfaces

What is the correct ratio for first-class mortars?

• 1 part cement to 3 parts sand

• 1 part sand to 3 parts cement

• 1 part lime to 4 parts sand

• 1 part cement to 4 parts sand

What is plaster applied to wall surfaces as a preparation or a hard finish coat?

• Mortar

• Cement

• Gypsum

• Lime

What is the first binding coat in a three-coat plastering job called?

• Scratch coat

• Brown coat

• Finish coat

• Base coat

What is the mixture used for the scratch coat in lime plaster?

• 1 part lime putty, 1 part Portland cement, 2-3/4 parts sand

• 1 part lime putty, 1 part gypsum

• 1 part cement, 3 parts sand

• 1 part lime putty, 1 part water

What is the purpose of adding fiber or hair to plaster?

• To increase strength

• To reduce weight

• To improve workability

• To enhance color

What is the thickness of plaster coats generally applied on metal lath?

• 5/8 inch

• 1/2 inch

• 1 inch

• 3/4 inch

What is the decorative plaster technique developed in Italy during the Renaissance called?

• Sgraffito

• Stucco

• Fresco

• Mosaic

What is the term for the horizontal surfaces on which the stones or bricks of walls lie?

• Bed

• Course

• Wythe

• Bond