Subject 2018 Question Paper — Government College of Engineering and T…
The 2018 Subject previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.
- University: Government College of Engineering and Technology, Jammu
- Course: TRANSPORTATION ENGG.-COURSE NO. PCE-503
- Branch: Civil Engg.
- Year: 2018
- Paper: end-term
- Duration: 180 minutes
- Total marks: 100
Instructions
- Attempt five questions in all, selecting at least one question from each section.
- All questions carry equal marks.
- Assume missing data, if any, suitably.
Questions
Module I
- Q1. (a) Explain briefly the Macadam's method of road construction. Why this method considered more scientific as compared to previous methods ? (b) Explain the term highway Alignment and the factors controlling it with sketches. [20 marks]
- Q2. (a) Calculate the length of transition curve for a design speed of $75\text{ km/h}$ at horizontal curve of radius $300\text{ m}$ in a rural area. Assume suitable data. (b) Explain the various cross-sectional elements of highway relating to its geometric design. Give the importance of cross slope. [20 marks]
Module II
- Q3. (a) What are the objectives of O and D studies ? Write down the methods of conducting O and D studies. (b) What is the need of parking studies ? Which parking is used for parking maximum vehicles at a time, why ? [20 marks]
- Q4. (a) Explain CBR test with a neat and labelled sketch of its apparatus. (b) Which test is used for the toughness of aggregate ? Explain in detail. [20 marks]
Module III
- Q5. (a) Explain the CBR method of pavement design. How is this method useful to determine the thickness of component layers ? (b) Calculate the stresses at the interior edge and corner region of a cement concrete pavement by Westergaads analysis using the following data : Wheel load $= 4000\text{ kg}$, Pavement thickness $= 15\text{ cm}$ Poisson ratio of concrete $= 0.15$, Radius of contact area $= 15\text{ cm}$ Modulus of elasticity of concrete $= 0.3\text{ million kg/cm}^2$ Modulus of subgrade reaction $= 3.0\text{ kg/cm}^2$ [20 marks]
- Q6. (a) Explain ESWL and the concept in the determination of the equivalent wheel load. (b) Calculate thickness of mat using triaxial method : E-value of subgrade soil $= 90\text{ kg/cm}^2$ E-value of paving materials $= 900\text{ kg/cm}^2$ Wheel load $= 5100\text{ kg}$ Tyre pressure $= 7\text{ kg/cm}^2$ Traffic coefficient $= 1.25$ Saturation coefficient $= 0.8$ [20 marks]
Module IV
- Q7. (a) Describe with the help of sketches, various types of bridges and discuss their relative merits. (b) How the choice of type of bridge is made ? Why is it necessary to calculate afflux while designing the water way of a bridge ? [20 marks]
- Q8. (a) What are the factors which influence the depth of foundation in case of bridges ? Discuss them in detail. (b) Write a detailed note on live loads for road bridges. [20 marks]