Road Signs and Soil Mechanics Quiz

Octagon

To aid and provide motorists with visual, audio, and motion warnings on the road.

Consolidation

<p>To provide warning to drivers on the road.</p> Signup and view all the answers

<p>Pile</p> Signup and view all the answers

<p>Delay</p> Signup and view all the answers

<p>Regulatory signs</p> Signup and view all the answers

<p>To provide adhesion to the old and new surface</p> Signup and view all the answers

<p>Add resistance due to tire flexing and penetration for the travel surface</p> Signup and view all the answers

<p>Construction joint</p> Signup and view all the answers

<p>Earth moving</p> Signup and view all the answers

<p>To make the surface waterproof</p> Signup and view all the answers

<p>Super elevation is the banking of a horizontal road surface, usually a curve, to improve drainage and vehicle stability. It aids in preventing road run-offs by counteracting the lateral centrifugal force of vehicles traveling around the curve.</p> Signup and view all the answers

<p>Common compaction techniques used in road construction include vibration, kneading, and impact loading to force air out of soil void spaces, resulting in a denser material. Compaction techniques are important to provide structural support and resistance to wear and tear due to traffic.</p> Signup and view all the answers

<p>Prime coats are applied to prevent water from seeping into the soil beneath the pavement, while tack coats ensure proper bonding between bituminous layers. Both are important in road construction to ensure the durability and longevity of the final pavement surface.</p> Signup and view all the answers

<p>In the presence of suspect outliers, preferred measures of central tendency include the median or mode, while measures of variability might include the interquartile range (IQR) or median absolute deviation (MAD) to minimize the influence of such outliers.</p> Signup and view all the answers

<p>Alligator cracks are a series of interconnected or interlaced cracks caused by fatigue failure of the asphalt concrete surface under repeated traffic loading. They are often the result of inadequate thickness, weak or poorly compacted base, and improper mix design.</p> Signup and view all the answers

<p>Factors that contribute to loss of control on curves include driver alertness, recognition of hazards, and available actions to stop or change direction. The provision of safety site distance allows drivers more time to react, thus mitigating potential risks associated with these factors.</p> Signup and view all the answers