Humber/Ontario Real Estate Course 4 Exam Practice

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What is the primary function of a collar tie in construction?

Provides additional strength for roof rafters.
Prevents floor joist twisting.
Enhances truss rigidity.
Connects various roof truss components.

The correct answer is: Provides additional strength for roof rafters.

A collar tie in construction primarily serves to provide additional strength for roof rafters. Collar ties are horizontal members that connect the rafters at the upper third of the roof span, helping to prevent the rafters from spreading apart under the weight of the roof and providing stability to the structure. While the other options may be relevant in construction, the primary function of a collar tie specifically relates to reinforcing the roof rafters.