The size of a stone used on a road must be in due proportion to the space occupied by a wheel of ordinary dimensions on a smooth level surface. This point of contact will be found to be longitudinally about 25 mm and every piece of stone put into a road which exceeds 25 mm in any of its dimensions is mischievous. This statement is according to Macadam.

Related MCQs

• A ater bound macadam road is an example of
• For the water-bound macadam road, the recommended camber is
• The longest distance at which a driver, whose line of sight is 1.2 m above the road surface, can see the top of an object 10 cm high on the surface of road, is called
• The camber recommended for water bound macadam roads in
• In water-bound Macadam roads
• The distance, measured along the centre line of a road, over which a driver can see the opposite object on the road surface, is called
• The highest point on road surface is called
• The rate of rise or fall of the road surface along its length, is called
• The portion of a road surface, which is used by vehicular traffic, is known as
• A camber of 1 in 30 means that for a 30 m wide road, the crown of the road will be