Highway Engineering

191. Reconnaissance is best done with the help of

1. Aerial photographic survey
2. Cadastral surveys
3. Topographical surveys
4. Triangulation surveys

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192. Reduction of load capacity in a ruling gradient of

1. 1 in 10, is 10%
2. 1 in 15, is 15%
3. 1 in 20, is 10%
4. 1 in 25, is 25%

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193. Reference pillars fixed on the centre line of a proposed road, provide the following information:

1. Reduced distance (R.D.)
2. Horizontal distance of road from the centre line
3. Reduced level at the top of pillar
4. All the above

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194. Reinforcement in cement concrete slab of road pavements, is placed

1. Longitudinally
2. Transversely
3. Longitudinally and transversely
4. In the form of welded wire mesh

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195. Retaining walls are generally constructed with dry rubble stones with 60 cm top width and

1. 1 : 2 front batter
2. 1 : 3 front batter
3. 1 : 4 front batter
4. 1 : 5 front batter

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196. Rigidity factor for a tyre pressure greater than 7 kg/cm² is

1. Equal to 1
2. Less than 1
3. Greater than 1
4. Zero

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197. Road makers along roads from the edge of a kerb should not be less than

1. 40 cm
2. 45 cm
3. 50 cm
4. 60 cm

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198. Road width 8.8 m of two lane National highways or State highways in mountainous terrain

1. Excludes the width of parapet (0.6 m)
2. Excludes the width of side drain (0.6 m)
3. Excludes the width of parapet and side drain
4. Includes the width of parapet and side drain

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199. Roadway width for a National highways and State highways (two-lanes) is

1. 12 m
2. 9 m
3. 9.5 m
4. 15 m

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200. Roughness index of roads, is expressed as

1. Size of the stone on the pavement
2. Number of patches on the pavement
3. Cumulative deformation of surface per horizontal distance
4. Type of the road surface

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