1. Construction Methods and Equipment Management

Try these first

1. 1.

   What are the basic steps in earthmoving operations?

   Hint

   Remember the acronym 'LEGHD'.

2. 2.

   Name one piece of equipment commonly used in earthmoving.

   Hint

   Think about the different equipment types mentioned.

3. 3.

   What is the first step in earthmoving operations?

   • Hauling
   • Loosening the material
   • Digging

   Hint

   Remember the order of operations for moving earth.

4. 4.

   True or False: Rolling resistance increases with higher inflation pressure in tires on soft roads.

   • True
   • False

   Hint

   Think about how tires interact with different surfaces.

5. 5.

   Calculate the total tractive effort required for a vehicle weighing 50,000 kg on a road with a rolling resistance of 28 kg per ton. Additionally, if the tires sink 6 cm into the surface, calculate the penetration resistance.

   Hint

   Break the problem into parts: calculate rolling resistance and then penetration resistance.

6. 6.

   Explain how changing tire types (from narrow to wide) affects performance on soft and hard surfaces.

   Hint

   Link back to how surface types influence equipment choice.