22302 IMP
1. Attempt any FIVE of the following: 10 |
| (a) State two characteristics of Road Transport. (b) Define Kerb and Right of way. |
| (c) Define Camber and Super-Elevation." |
| (d) Define Flakiness Index and Elongation Index. |
| (e) List various types of curves provided on Hill Roads.** |
| (1) State the necessity of providing catch water drain in Hill Roads. |
| (g) State two causes of Landslides.** (H) Frist types of Gradients |
| () Define: () Road carriageway |
| (i) Rood shoulder (1) Define: (i) Traffic density |
| (ii) Traffic volume |
| (k) State the necessity of Good drainage (2 points). (1) State classification of highway maintenance. |
| 2. Attempt any THREE of the following: 12 (a) Classify the Roads according to Nagpur Road Plan. ** |
| (b) Define Design Speed, Give four factors affecting Design Speed. |
| (c) Define gradient. Explain types of gradient. (Any Two) (d) state and explain functions of Pavement Components.** (e) Define alignment and state the requirement of an ideal road alignment." |
| (1) State the necessity of providing extra widening on horizontal curves. |
| (g) Define |
| (() stopping Sight Distance (II) Overtaking Sight Distance |
| 3. Attempt any THREE of the following: 12 |
| (a) Explain the construction procedure of Bituminous Rood (b) Explain Softening Point Test on Bitumen with neat sketch." |
| (c) state different types of Tar used in construction of Road with its suitability. (d) Define Passenger Car unit, Give factors affecting it.⚫ |
| (e) Explain the procedure for flakiness and elongation test on aggregate. (1) Discuss the merits and demerits of bitumen road/WBM. |
| (g) State the difference between alignment of hill roads and alignment of plain roads |
| 4. Attempt any THREE of the following: 12 |
| (0) List couses of Accident. Draw Collision diagram for Head-on-Collision. (b) Explain preventive measures that can be taken to avoid Landslides in hilly area. * (c) Draw a typical cross-section of Hill Road and label all component parts. |
| (d) state the functions of surface drainage and sob-surface drainage.* |
| (e) Draw a neat sketch (Plan & Section) of Longitudinal drain and Cross drain (1) Draw labelled sketches of side drains along hill roods |
| (g) Prepare a chart showing schedule of maintenance operation from October to March for bituminous road. |
| (h) Justify the remedial measures for the following defects in earthen road |
| (1) Formation of dust during dry weather (ii) Growth of vegetation inside drains & their silting up |
| 5. Attempt any Two of the following: 12 |
| (a) Calculate the stopping Sight Distance for two way traffic in a single Lane Road. The design speed of the Road is 60 kmph. Assume Reaction time of the driver as 2.5 sec and Co-efficient of friction as 0.6. Brake efficiency is 50%. |
| (b) Draw a neat cross-section of National Highway in Embankment. |
| (c) state the methods of construction of Cement Concrete Road. Explain any one method. (d) Design the rate of super elevation for a Horizontal Highway curve of radius 500 metres and speed 100 kmph. Assume suitable data. |
| (e) calculate the design speed of a vehicle on a horizontal curve having radius of 100 m. with permissible super elevation of 7%. Consider Cost of friction 0.18. |
| (1) state the requirement of good quality material which plays the major role in highway construction. |
| 6. Attempt any TWO of the following: 12 |
| (a) Draw Traffic Signs for |
| (i) Left Turn Prohibited |
| (ii) No Parking |
| (iii) Speed Limit-60 kmph |
| (iv) Width Limit - 2m |
| (v) Narrow Bridge (vi) Compulsory Ahead or Turn Right |
| (b) Explain Rotary Island (Traffic island) / Divisional Island with a neat sketch. |
| (c) Justify the remedial measures for following defects:** (i) Formation of Potholes in Case of WBM Roads. |
| (ii) Formation of Ruts in Case of Earthen Roads (I) Bitumen Bleeding in Case of Bituminous Roads. |
| (d) Describe stepwise construction procedure for water bound macadam roads." (e) Discuss the causes of failure in flexible and rigid pavement. |
