PLTW CEA 3.1.6 Commercial Floor Systems

Which type of precast concrete floor is shown in the image?

• Solid core

• Hollow core

• Single T

• Double T

What is the process called where concrete floors are formed, reinforced, and cast in place?

• Precast Concrete

• Cast-in-Place Concrete

• Reinforced Concrete

• Prestressed Concrete

For a slab thickness of 3 1/2 inches, the recommended Welded Wire Fabric (W.W.F.) is ______.

• W1.4xW1.4

• W2.1xW2.1

• W1.4xW1.7

• W1.4xW1.5

What is one reason to avoid shoring in concrete floor design?

• It adds to the cost of construction.

• It reduces the cost of construction.

• It increases the strength of the floor.

• It decreases the number of spans.

Which of the following is NOT correct about precast concrete floors?

• Formed and cast off-site

• Transported to the site

• Installed in the structure

• Made on-site

In low rise commercial buildings, floor systems may resemble residential framing using which materials?

• Wood or light-gauge steel

• Reinforced concrete

• Steel

What is the primary purpose of shoring in concrete framing construction?

• To permanently support the structure

• To provide temporary stabilization during construction

• To serve as an aesthetic feature

• To reduce the cost of materials

What is the definition of load in the context of concrete floor design?

• The distance between supports

• The force applied to the floor

• The weight of the concrete

• The height of the building.

In many larger commercial buildings, floors are constructed with ________.

• Wood

• Light-gauge steel

• Reinforced concrete

• Plastic

What is the weight per square foot (WT PSF) for a deck type 18?

• 1.95

• 2.56

• 3.25

• 0.0295