GED103_Quiz 1

What is curve surveying?

• Measuring and mapping building heights only

• Measuring and mapping the curvature of roads, rivers, and other natural features

• Calculating land area only

• Locating buildings using GPS

Which tools are commonly used in curve surveying?

• Microscopes and compasses

• Computers only

• Total stations, theodolites, and GPS equipment

• Saws and paper maps

What is the purpose of introducing curves in roads and railways?

• To increase vehicle speed

• To facilitate smooth and safe changes in direction

• To reduce construction costs

• To make roads more curved without safety considerations

Where are curves usually introduced in roadways?

• In the middle of a straight path

• At the intersection of two straight paths

• Only at the beginning of the road

• Curves are never introduced in roads

What is a horizontal curve?

• A curve that connects two vertical lines

• A curve provided where two straight lines intersect in a horizontal plane

• A curve used only for railways crossing valleys

• A curve that changes elevation

When are vertical curves usually provided?

• When two roads intersect horizontally

• When a highway or railway crosses a ridge or valley

• When roads are perfectly flat

• When two horizontal lines meet

What is the main purpose of vertical curves?

• To make the transition between different elevation points smooth and comfortable

• To increase the speed of vehicles on flat roads

• To create sharp turns on highways

• To reduce the length of the road

What is a simple curve?

• A single arc of a circle tangential to both straight lines of the route

• Two or more arcs with centers on opposite sides

• A curve with varying radius

• A combination of circular and transition curves

What characterizes a compound curve?

• It consists of one circular arc

• Two or more circular arcs with different radii and centers of curvature on the same side of the tangent

• It is used only for sharp turns

• It has centers on opposite sides of the tangent

Why are compound curves used?

• To avoid cutting and filling soil, especially when space is limited or property boundaries exist

• To increase vehicle speed

• To create abrupt direction changes

• To reduce the road length