1.2. Downward Stroke

Try these first

1. 1.

   What drives the hammer during the upward stroke?

   Hint

   Think about which component supplies the force!

2. 2.

   Is the double acting hammer suitable for very stiff soils?

   Hint

   Consider the energy dynamics discussed.

3. 3.

   What primarily drives the double acting steam hammer?

   • Weight of the hammer
   • Air pressure
   • Electric power

   Hint

   Think about what creates the upward force.

4. 4.

   True or false: The blow rate of a double acting steam hammer can go up to 300 blows per minute.

   • True
   • False

   Hint

   Recall the text discussing blow rates!

5. 5.

   Given a scenario where a double acting steam hammer is used in varying soil conditions, assess which applications would be suitable and which would not.

   Hint

   Analyze frictional resistance versus hammer capabilities.

6. 6.

   Evaluate the potential risks of using a double acting hammer in cohesive soils with high frictional resistance.

   Hint

   Consider the implications of high blow rates versus soil attributes.