STUPIDSID
Solve any one question fromQ.1(a,b) and Q.2(a,b)
1(a)
Discuss briefly the development of roads since inception of Indian Road Congress.
5 M
1(b)
For economical road alignment shortest length is usually the best. What circumstances justify a deviation far from the principle?
5 M
2(a)
Preventive measures for road accidents consists of Engineering, Enforcement and Education aids. Explain each briefly. Have you any suggestion to prevent road accident.
5 M
2(b)
Distinguish clearly between Camber and Super elevation. How super elevation is povided in the field.
5 M
Solve any one question fromQ.3(a,b) and Q.4(a,b)
3(a)
Define SSD. Assuming a brake efficiency of 50% and a total of perception and brake reaction time 1.5 sec. Calculate the minimum required sight distance to avoid a collision with a car approaching from the opposite direction, if both the cars are assumed to be speeding at 60 kmph.
5 M
3(b)
Following test results were obtained by CBR test on a subgrad soil:
Calculate CBR value at 2.5 mm and 5.00 mm penetration level.
| Penetration (mm) | Load (kg) | Penetration (mm) | Load(kg) |
| 0.00 | 0.00 | 3.00 | 58.00 |
| 0.50 | 5.00 | 4.00 | 70.00 |
| 1.00 | 17.00 | 5.00 | 78.00 |
| 1.50 | 29.00 | 7.50 | 92.00 |
| 2.00 | 42.00 | 10.00 | 102.00 |
| 2.50 | 50.00 | 12.50 | 108.00 |
5 M
4(a)
Calculate warping stress at Interior and Longitudinal Edge region for concrete pavement of thickness 20 cm with transverse joint at
15 m spacing and having pavement width of 3.8m.
Modulus of elasticity of concrete = 3.0× 105kg/cm2
Poisson's ratio = 0.15
Modulus of subgrade reaction = 3.0kg/cm3
Temperature differential = 1.0° Celcius per cm
Thermal coefficient of concrete = 7.5×10-6 per°Celcius
Radius of loaded area 15 cm
Assume Cx=1.03 and Cy= 0.60
15 m spacing and having pavement width of 3.8m.
Modulus of elasticity of concrete = 3.0× 105kg/cm2
Poisson's ratio = 0.15
Modulus of subgrade reaction = 3.0kg/cm3
Temperature differential = 1.0° Celcius per cm
Thermal coefficient of concrete = 7.5×10-6 per°Celcius
Radius of loaded area 15 cm
Assume Cx=1.03 and Cy= 0.60
5 M
4(b)
Explain in brief the following:
i) Tack coat ii) Prime coat iii) VG-30 iv)CRMB
v) Cutback
i) Tack coat ii) Prime coat iii) VG-30 iv)CRMB
v) Cutback
5 M
Solve any one question fromQ.5(a,b,c) and Q.6(a,b,c)
5(a)
Expalin with a neat sketch, how three controls are used to monitor the aircraft movement.
6 M
5(b)
Explain stepwise procedure of consturction of Wind Rose Type II diagram.
6 M
5(c)
State the various objects of carrying out survey for planning of a new airport.
4 M
6(a)
What do you mean by Taxiway? Describe in brief the factors conrolling layout of a Taxiway.
6 M
6(b)
Differentiate between Minimum Turning radius and Minimum circling radius. Also state the significane of each term.
6 M
6(c)
Expalin in brief Head wind and Cross wind.
4 M
Solve any one question fromQ.7(a,b,c) and Q.8(a,b,c)
7(a)
Describe the methodology involved in the use of Rational Method for computation of maximum flood discharge from small catchment.
6 M
7(b)
Defien waterway. State the various recommendations for fixing the waterway of different streams.
4 M
7(c)
Define the following terms:
i) Causeway ii) Aqueduct ii) Viaduct
i) Causeway ii) Aqueduct ii) Viaduct
6 M
8(a)
A bridge ahs 4 spans of 8m each. When the flood water apporaches the bridge, the difference of level of water on upstream and downstream side is 1.85 m and the downstream depth is 6.8m. The bridge is located on a river with a slope of 1 in 500. The coefficient of losses due to friction because of bridge operating is 0.96. Chezy's coefficient is 50 and hydraulic mean depth for river is 3.0m. Determine the flood discharge.
8 M
8(b)
Define Economic Span. Derive an equation and economical span.
6 M
8(c)
Distinguish between Alluvial and Qusi-alluvial stream.
2 M
Solve any one question fromQ.9(a,b,c) and Q.10(a,b,c)
9(a)
The catchment area of a stream is of sandy soil with light vegetation cover and the area of the catchment is 15000 hectares. The length of the catchment is 26 km and the fall in level from the critical point to the bridge site is 185m. Calculate peak runoff for designing the bridge if the severest storm recorded yielded 18 cm of rain 4 hours. Assume value of area factor is equal to 0.70 and coefficient to account for losses due to absorption is 0.20.
6 M
9(b)
What do you understand by movanle bridges? Explain any two types of movable bridges with the help of neat sketch.
6 M
9(c)
Discuss in brief the following:
i) Live Load
ii) Wind Load
iii) Buoyancy Force
i) Live Load
ii) Wind Load
iii) Buoyancy Force
6 M
10(a)
State the various purposes of providing bridge bearings. Why are elastomeric bearings preferable to the usual steel bearings for highway bridges.
6 M
10(b)
Defien Pier. Draw a neat sketch of the Hammer head shape pier and Multiple bent pier.
6 M
10(c)
Explain in brief the need of maintenance and strengthening of existing old bridges.
6 M
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