Highway Engineering

131. In case of cement concrete pavements, pick up the incorrect statement

1. Tractive resistance is low
2. Initial cost of construction is high
3. Initial cost of construction is low
4. Visibility during nights is high

View answer

132. In CBR test the value of CBR is calculated at

1. 2.5 mm penetration only
2. 5.0 mm penetration only
3. 7.5 mm penetration only
4. Both 2.5 mm and 5.0 mm penetrations

View answer

133. In cement concrete pavements, tensile stress is due to:

1. Bending or deflection under wheel loads
2. Difference in temperature of the top and bottom of pavement
3. Contraction of slab during falling temperature
4. All the above

View answer

134. In complex situations, total time required for a driver to form a judgement and to act, may be taken as

1. 1.0 sec
2. 1.5 sec
3. 2.0 sec
4. 3.0 sec

View answer

135. In highway construction on super-elevated curves, the rolling shall proceed from

1. Sides towards the centre
2. Centre towards the sides
3. Lower edge towards the upper edge
4. Upper edge towards the lower edge

View answer

136. In highway construction, rolling starts from

1. Sides and proceed to center
2. Center and proceed to sides
3. One side and proceed to other side
4. Any of the above

View answer

137. In hill roads the side drains arc provided

1. Only on the hill side of road
2. Only on the opposite side of hill
3. On both sides of road
4. None of the above

View answer

138. In ideal pavement is constructed with

1. Bricks
2. Hard soil
3. Portland cement concrete
4. Tar

View answer

139. In India the modes of transportation, in the order of their importance, are

1. Air transport, shipping, roads, railways
2. Shipping, roads, railways, air transport
3. Roads, railways, air transport, shipping
4. Railways, roads, shipping, air transport

View answer

140. In retaining and breast walls, weep holes are provided at

1. 50 cm vertical height and 50 cm centre to centre horizontally
2. 100 cm vertical height and 100 cm centre to centre horizontally
3. 100 cm vertical height and 120 cm centre to centre horizontally
4. 120 cm vertical height and 100 cm centre to centre horizontally

View answer