Home / Nova Scotia / Questions / Rules of the Road Rules of the Road Report Brake pads in NS should be: A Never replaced B Inspected routinely; replaced when worn to manufacturer's thickness C Replaced every 3 months D Only when grinding Show Answer & Explanation Correct Answer: B. Inspected routinely; replaced when worn to manufacturer's thickness Grinding = metal-on-metal; rotor damage. Previous Next More Rules of the Road Questions Hazard lights should be used when: A visitor with a valid foreign licence may drive in NS for: Entering a roundabout, drivers must: When exiting a roundabout: A photo radar or red-light camera ticket in NS: Often Missed All Nova Scotia Questions Smart Practice Mock Exam Road Signs Guide