Electronic Grade and slope control

What do the hydraulic cylinders adjust on a paver screed?

• Tow point elevation
• Downward pressure
• Clearance elevation
• Temperature

What is the electronic grade control light at C in the figure?

• Pressure
• Warning
• Correct grade
• Level

What job does a mobile reference beam perform on an asphalt paver?

• Senses changes in elevation.
• Straightens curves.
• Smoothes the asphalt.
• Detects the center line.

On what is a paver ski designed to ride?

• Erect string
• Mobile track
• Paver wheels
• The surface being paved

What type of pressure is used to adjust the tilt on a paver screed?

• Mechanic
• Pneumatic
• Hydraulic
• Hydronic

What does the word “fill” mean when used in surveying?

• Hump or high spot
• Grade elevation change
• Incline angle
• Distance above hub

What do surveyors install to identify a known elevation in preparation to install a stingline?

• Hubs
• Sting pipes
• Steel stakes
• Surveyor pods

How should the screed control arm sensor warning lights on a paving machine be positioned?

• Facing the top
• Facing the control box
• Facing the back
• Facing toward the operator

What will changing the tilt of the screed change?

• Screen angle
• Cross slope
• Contact zone
• Angle of attack

What effect has the introduction of grade and slope control had on the highway system?

• Flatter inclines
• Smoother surfaces
• Ice control
• Improved storm drainage