In low-cost housing, what is the benefit of rat-trap bond masonry?
- AIncreases the strength of walls
- BReduces the amount of bricks and mortar usedCorrect
- CEnsures a decorative finish
- DEliminates the need for skilled labour
Solution
Concept
Rat-trap bond
Step-by-step solution
1. Bricks are placed on edge with a cavity. 2. This saves bricks and mortar and gives insulation.
Explanation
Rat-trap bond reduces material use.
Why the other options are wrong
It does not increase strength or remove skilled labour.
Shortcut
Rat trap = saves bricks.
Correct answer: B) Reduces the amount of bricks and mortar used