What is Portland Cement primarily made from?

• Water and air

• Lime, silica, alumina, and iron components

• Clay and gypsum

• Sand and gravel

Which type of cement is designed to produce better mortar?

• Waterproofed Portland Cement

• Oil Well Cement

• Masonry Cement

• White Portland Cement

What is the purpose of Air-entraining Portland Cement?

• To increase the color of the cement

• To enhance the bonding of bricks

• To reduce the weight of concrete

• To improve resistance to severe frost

What is the maximum diameter for fine aggregate?

• 1/2 inch

• 3/8 inch

• 1 inch

• 1/4 inch

Which class of concrete mix is used for footings and columns?

• Class AA

• Class B

• Class A

• Class C

What does the Slump Test measure?

• The strength of concrete

• The temperature of concrete

• The consistency of a concrete mix

• The weight of concrete

What is the purpose of accelerators in concrete?

• To slow down the setting time

• To reduce the water content

• To increase the initial set speed

• To enhance the color of concrete

Which type of concrete hardener is made from silicofluorides?

• Fine Metallic Aggregate

• Chemical Hardeners

• Water Reducing Admixtures

• Concrete Additives

What is the standard size of a common brick?

• 2 ¼ x 3 ¾ x 8 inches

• 2 x 2 x 6 inches

• 2 x 4 x 8 inches

• 3 x 6 x 9 inches

What type of clay is found near the surface of the earth?

• Shales

• Calcareous Clays

• Surface Clay

• Fire Clay