Alligator or map cracking is the common type of failure in
Options
A. concrete pavements
B. bituminous surfacing
C. gravel roads
D. WBM construction
Correct Answer
bituminous surfacing
GATE Exam Questions problems
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1. The plan of a survey plotted to a scale of 10 m to 1 cm is reduced in such a way that a line originally 10 cm long now measures 9 cm. The area of the reduced plan is measured as 81 cm2. The actual (m2) of the survey is
3. A propped cantilever beam of span L, is loaded with uniformly distributed load of intensity w/unit length, all through the span. Bending moment at the fixed end is,
4. The centre of pressure of a liquid on a plane surface immersed vertically in a static body of liquid, always lies below the centroid of the surface area, because
Options
A. in liquids the pressure acting is same in-all directions
B. there is no shear stress in liquids at rest
C. the liquid pressure is constant over depth
D. the liquid pressure increases linearly with depth
Correct Answer: the liquid pressure increases linearly with depth
5. Which one of the following set of values give the minimum clear cover (in mm) for the main reinforcements in the slab, beam, column and footing, respectively, according to IS : 456-1978?
7. A linear relationship is observed between speed and density on a certain section of a highway. The free flow speed is observed to be 80 km per hour and the jam density is estimated as 100 vehicles per km length. Based on the above relationship, the maximum flow expected on this section and the speed at the maximum flow will respectively be
Correct Answer: 2000 vehicles per hour and 40 km per hour
8. The ratio of unconfined compressive strength of an undisturbed sample of soil to that of a remoulded sample, at the same water content, is known as :
9. The time for a clay layer to achieve 90% consolidation is 15 years. The time required to achieve 90% consolidation; if the layer were twice as thick, 3 times forr permeable and 4 times more compressible would be :