Transportation Engineering SPPU Endsem Question Paper Nov 2023
All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.
- Subject code
- 401002
- Pattern
- 2019 pattern
- Exam
- Endsem
- Session
- Nov 2023
- Max. marks
- 70
- Time
- 2½ Hours
- Semester
- VII
- Paper code
- [6181]-73
Printed for: B.E. (Civil Engineering)
Instructions to the candidates
- Answer Q1 or Q2, Q3 or Q4, Q5 or Q6, Q7 or Q8.
- Figures to the right side indicate full marks.
- Use of electonic pocket calculator is allowed.
- Assume Suitable data, if necessary.
- Neat diagrams must be drawn wherever necessary.
Questions
Q1
- a)[6]
What do you mean by formation width and carriageway width. Draw the typical cross section of road in hilly area.
- b)[6]
Explain in brief how the superelevation is provided in the field.
- c)[6]
A vertical summit curve is formed at the intersection of two gradients + 3% and – 5%. Design the length of the summit curve to provide a stopping sight distance for a design speed of 80 kmph. Assume any other data suitably.
OR- a)
Q2
- a)[6]
Explain any two important pavement surface characteristics with respect to highway geometric design.
- b)[6]
Design the rate of superelevation for a horizontal highway curve of radius 500m and speed 100 kmph.
- c)[6]
What are the various vehicular characteristics which affects the road design? Briefly explain.
- a)
Q3
ORQ4
Q5
- a)[5]
Draw a neat cross section of flexible pavement. Explain in brief functions of various layers of flexible pavement.
- b)[6]
Explain maximum wheel load and contact pressure.
- c)[6]
Compute the radius of relative stiffness of 15cm thick cement concrete slab from the following data : Modulus of elasticity of cement concrete = 210000 kg/cm 2 Poisson’s ratio for concrete = 0.13 Modulus of subgrade reaction, K = i) 3.0 kg/cm 3 ii) 7.5 kg/cm 3
OR- a)
Q6
- a)[5]
- b)[6]
Calculate the stresses at interior regions of cement concrete pavement using Westergaard’s stress equations. Use the following data : Modulus of elasticity of cement concrete = 300000 kg/cm 2 Wheel load = 5100 kg Pavement thickness = 18 cm Poisson’s ratio for concrete = 0.15 Modulus of subgrade reaction = 6.0 kg/cm 3 Radius of contact area = 15 cm
- c)[6]
Q7
- a)[6]
Explain afflux. List and explain the different formulae used for estimation of afflux.
- b)[6]
A bridge is proposed to be constructed across an alluvial stream carrying a discharge of 200 m 3 /sec. Assume Lacey’s slit factor equal to 1.0. Find the maximum depth of scour when the bridge consists of 2 spans of 40 m each.
- c)[5]
Explain the function of ballast.
OR- a)
Q8
- a)[6]
Explain the following with a neat sketch : i) Box Culvert. ii) Swing bridge. iii) Suspension bridge.
- b)[6]
A bridge has a linear waterway of 110m constructed across a stream, whose natural waterway is 190m. If the flood flow is 950 Cumecs and the mean depth of flow is 2.75m, Calculate the Afflux under the bridge.
- c)[5]
This part has equations that don’t show as text. Open the PDF to read it.
- a)