NRSWA Reinstatement Cold Lay Practice Questions – Set 1
#1. Which of the following is the correct product certificate required for permanent cold-lay materials?
#2. In which types of carriageways is the use of cold-lay permitted?
#3. Why is flux oil added to produce a Deferred set material?
#4. What would be the combined thickness of the Surface and Binder layers in a flexible footway?
#5. When trimming back a damaged edge on a carriageway patch repair, what is the relevant proximity rule?
#6. What must be applied to the vertical edges prior to laying any bitumen materials?
#7. How many passes would you require on a 40mm Surface layer when operating a vibrating plate over 1800Kg/M3?
#8. What are the maximum dimensions for over-banding materials?
#9. When preparing the edges of an excavation what is the minimum length of any projection?
#10. Prior to laying the binder layer, you notice the GSB 1 in the base layer is extremely wet, what should you do?
