Highway Engineering

141. In scanty rainfall regions, the camber provided will be

1. Nil
2. Flatter
3. Steeper
4. None of these

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142. In soils having same values of plasticity index, if liquid limit is increased, then

1. Compressibility and permeability decrease and dry strength increases
2. Compressibility, permeability and dry strength decrease
3. Compressibility, permeability and dry strength increase
4. Compressibility and permeability increase and dry strength decreases

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143. In the penetration macadam construction, the bitumen is

1. Sprayed after the aggregates are spread and compacted
2. Premixed with aggregates and then spread
3. Sprayed before the aggregates are spread and compacted
4. None of the above

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144. In water bound macadam roads, binding material, is

1. Sand
2. Stone dust
3. Cement
4. Brick dust

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145. In welded wire mesh, the longitudinal wire is placed at

1. 10 cm centres
2. 15 cm centres
3. 20 cm centres
4. 25 cm centres

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146. Increase in traffic volume, due to increase in transport vehicles, is known as

1. Development traffic
2. Normal traffic growth
3. Generated traffic growth
4. Current traffic

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147. Indian Road Congress (I.R.C.) was founded and constituted with its head quarters at New Delhi, in

1. 1924
2. 1927
3. 1930
4. 1934

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148. Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm², is

1. 17.0 cm
2. 25.5 cm
3. 34.0 cm
4. 42.5 cm

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149. Intermediate catch water drains are provided only, if

1. Catchment area of the watershed above road is large
2. Intensity of rainfall is heavy
3. Single catch water drain is inadequate
4. All the above

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150. Length of vehicles does not affect

1. Extra widening
2. Minimum radius of turning
3. Passing sight distance
4. Width of shoulders

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