Highway Engineering

221. The camber for hill roads in case of bituminous surfacing is adopted as

1. 2 %
2. 2.5 %
3. 3 %
4. 4 %

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222. The camber of shoulders in water bound macadam roads is

1. Equal to the cross slope of pavement
2. Less than the cross slope of pavement
3. Greater than the cross slope of pavement
4. Zero

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223. The camber on pavements, is provided by

1. Straight line method
2. Parabolic method
3. Straight line and parabolic at crown
4. Elliptical method

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224. The convexity provided to the carriageway between the crown and edge of the pavement, is known as

1. Super-elevation
2. Camber
3. Height of the pavement
4. None of these

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225. The correct formula for calculating super-elevation for the hill roads, is

1. e = V²/254 R
2. e = V²/225 R
3. e = V²/278 R
4. e = V²/114 R

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226. The critical combination of stresses for corner region in cement concrete roads is

1. Load stress + warping stress frictional stress
2. Load stress + warping stress + frictional stress
3. Load stress + warping stress
4. Load stress + frictional stress

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227. The desirable camber for straight cement concrete roads, is

1. 1 in 33 to 1 in 25
2. 1 in 40 to 1 in 33
3. 1 in 150 to 1 in 140
4. 1 in 160 to 1 in 140

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228. The desirable camber for straight roads with thin bituminous surfacing, is

1. 1 in 33 to 1 in 25
2. 1 in 40 to 1 in 33
3. 1 in 150 to 1 in 140
4. 1 in 160 to 1 in 140

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229. The desirable camber for straight roads with water bound macadam or gravel surface, is

1. 1 in 33 to 1 in 25
2. 1 in 40 to 1 in 33
3. 1 in 150 to 1 in 140
4. 1 in 160 to 1 in 140

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230. The difference in gradients after full super-elevation and the initial alignment of a road, is known as

1. Ruling gradient
2. Rising gradient
3. Compensated gradient
4. Differential gradient

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