Determine levelness and plumbness of surfaces, using a level.

Determination should include

• checking horizontal surface for levelness
• checking vertical surface for plumbness
• reading a level and noting if the bubble is off center.

Process/Skill Questions:

• What is the difference between level and plumb?
• What are the different lengths of levels used?
• What are the possible consequences of failing to determine levelness and plumbness of surfaces?
• What is allowable tolerance?