
Unit 207 Floors and Flat Roofs - Assignments

Quiz
•
Fun
•
12th Grade
•
Hard
Simon Christian
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
List the different types of joists used in flooring construction.
Solid lumber joists, I-joists, Open-web floor trusses
Steel joists, Concrete joists, Composite joists
Wooden joists, Metal joists, Plastic joists
Engineered wood joists, Reinforced concrete joists, Hollow core slabs
Answer explanation
The correct answer lists types of joists commonly used in flooring: Solid lumber joists are traditional, I-joists are engineered for strength, and Open-web floor trusses provide efficient support, making them suitable for various construction needs.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The purpose of bridging joists is to:
provide lateral stability to floor joists
support the roof structure
enhance the aesthetic appeal of the building
increase the height of the ceiling
Answer explanation
Bridging joists are used to provide lateral stability to floor joists, preventing them from twisting or buckling under load. This is essential for maintaining the structural integrity of the floor system.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Timber joists should be checked to ensure the camber is upwards because:
it helps in water drainage.
it prevents sagging under load.
it enhances aesthetic appeal.
it reduces construction costs.
Answer explanation
Timber joists should have an upward camber to counteract the weight they bear. This design helps prevent sagging under load, ensuring structural integrity and longevity.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compare traditional and modern ground floor construction methods.
Traditional methods are more cost-effective but less energy-efficient.
Modern methods are more cost-effective but less durable.
Traditional methods are more durable but less energy-efficient.
Modern methods are more energy-efficient but less cost-effective.
Answer explanation
Modern construction methods utilize advanced materials and techniques, making them more energy-efficient. However, these innovations often come at a higher cost, leading to the conclusion that they are less cost-effective.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The purpose of a fast-install insulated concrete floor is to:
provide thermal insulation and quick installation
enhance aesthetic appeal
reduce noise levels
increase structural strength
Answer explanation
The fast-install insulated concrete floor is designed to provide both thermal insulation and quick installation, making it efficient for construction while ensuring energy efficiency.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are services (pipes and cables) positioned within floor joists?
Horizontally through notches at the top of the joists
Vertically through holes in the center of the joists
Horizontally through holes in the center of the joists
Vertically through notches at the bottom of the joists
Answer explanation
Services are typically positioned horizontally through holes in the center of the joists to maintain structural integrity and allow for easier installation and access, making this the correct choice.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name two modern joist systems.
Open Web Steel Joists and Wood I-Joists
Concrete Joists and Hollow Core Slabs
Timber Joists and Steel Beams
Reinforced Concrete Joists and Precast Concrete Joists
Answer explanation
Open Web Steel Joists and Wood I-Joists are widely used modern joist systems due to their efficiency and strength. They provide excellent load-bearing capabilities while minimizing material use, making them popular in contemporary construction.
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