Transportation Engineering Notes

Transportation Engineering

Exam Details

  • DE/CEPC-403/24
  • 4th Semester Diploma Engineering Exam, 2024
  • Paper: CEPC-403
  • Full Marks: 60
  • Time: 2 hours

General Instructions

  • Answer Question No. 1 and any one from each Module.

Question 1

  • Answer the following as directed: 2×5=10
    • (a) What is permanent way?
    • (b) Define stopping sight distance.
    • (c) The Indian Roads Congress was formed in __ (Fill in the blank)
    • (d) Write one function of traffic separators.
    • (e) Mention two causes of occurring creep of rail.

MODULE-1

Question 2
  • (a) Illustrate the basic requirements to select highway alignment. (4 marks)
  • (b) Classify the urban roads as per IRC. (4 marks)
  • (c) Write the objectives of reconnaissance survey conducted in a highway project. (2 marks)
  • Total: 4+4+2=10 marks
Question 3
  • (a) Discuss about the factors affecting road alignment. (4 marks)
  • (b) Explain the salient features of Nagpur Road Plan. (4 marks)
  • (c) Name the engineering surveys to be conducted in a highway project. (2 marks)
  • Total: 4+4+2=10 marks

MODULE-2

Question 4
  • (a) The radius of a horizontal circular curve is 80 m. The design speed is 50 kmph and the design coefficient of lateral friction is 0.15. Calculate the superelevation required if full lateral friction is assumed to develop. (3 marks)
  • (b) Explain the necessity of providing transition curve. (3 marks)
  • (c) Discuss about different gradients as per IRC recommendations. (4 marks)
  • Total: 3+3+4=10 marks
Question 5
  • (a) Define the following terms: (1×3=3 marks)
    • (i) Kerb
    • (ii) Camber
    • (iii) Carriage way
  • (b) Calculate the extra widening required for a pavement of width 7 m on a horizontal curve of radius 250 m if the longest wheel base is 7 m. Design speed is 70 kmph. (4 marks)
  • (c) Classify different sight distance provided on a highway as per IRC. (3 marks)
  • Total: 3+4+3=10 marks

MODULE-3

Question 6
  • (a) Name different laboratory tests to identify the quality of Bitumen sample. (2 marks)
  • (b) Write the merits and demerits of WBM. (2+2=4 marks)
  • (c) Classify the joints in a cement concrete pavement. (4 marks)
  • Total: 2+(2+2)+4=10 marks
Question 7
  • (a) Compare between Bitumen and Tar. (2 marks)
  • (b) Explain joint filler and joint sealer. (2+2=4 marks)
  • (c) Discuss about bituminous emulsion. (3 marks)
  • (d) Write the objective of conducting abrasion test of aggregate. (1 mark)
  • Total: 2+(2+2)+3+1=10 marks

MODULE-4

Question 8
  • (a) Draw the section of a permanent way and show different components. (4 marks)
  • (b) Mention the functions of railway sleeper and ballast. (3 marks)
  • (c) Enumerate the requirements of an ideal rail joint. (3 marks)
  • Total: 4+3+3=10 marks
Question 9
  • (a) Mention the functions of the following rail fixtures: (3 marks)
    • (i) Fish plate
    • (ii) Spike
    • (iii) Bearing plate
  • (b) Write a short note on roaring rail. (2 marks)
  • (c) Classify different railway sleepers. (3 marks)
  • (d) Name different factors affecting selection of a particular gauge. (2 marks)
  • Total: 3+2+3+2=10 marks

MODULE-5

Question 10
  • (a) Describe the following terms: (2+2=4 marks)
    • (i) Negative cant
    • (ii) Coning of wheel
  • (b) Draw a sketch of left-hand turnout and show different components. (3 marks)
  • (c) Illustrate the factors affecting site selection for railway station. (3 marks)
  • Total: 4+3+3=10 marks
Question 11
  • (a) Describe different junctions in a railway track. (4 marks)
  • (b) Define cant deficiency. (2 marks)
  • (c) Classify different railway stations. (2 marks)
  • (d) Write the purpose of flag station. (2 marks)
  • Total: 4+2+2+2=10 marks

2023 Exam Paper

Question 1
  • Answer the following as directed: 1×10=10
    • (a) The Indian Roads Congress (IRC) was formed in __ (Fill in the blank)
    • (b) What is road alignment?
    • (c) Define sight distance.
    • (d) Write one function of pavement shoulder.
    • (e) Tar is produced by the destructive distillation of wood. (Write True or False)
    • (f) What is tack coat?
    • (g) What is permanent way?
    • (h) Gauge is the distance between:
      • (i) centre-to-centre of rails
      • (ii) running faces of rails
      • (iii) outer faces of rails
      • (iv) None of the above (Choose the correct answer)
    • (i) Define turn table.
    • (j) __ is the longitudinal movement of rails in a track. (Fill in the blank)

MODULE-1 (2023)

Question 2
  • (a) Explain the merits and demerits of roadway over airway. (4 marks)
  • (b) Classify the urban roads in India as per the IRC. (3 marks)
  • (c) Write down the objectives of preliminary survey conducted during the construction of a road. (3 marks)
  • Total: 4+3+3=10 marks
Question 3
  • (a) Briefly discuss about the classification of roads as per Nagpur Road Plan. (4 marks)
  • (b) Write the basic requirements of an ideal alignment of highway. (3 marks)
  • (c) Write a short note on macadam method of construction. (3 marks)
  • Total: 4+3+3=10 marks

MODULE-2 (2023)

Question 4
  • (a) Draw a neat sketch of single-lane road in embankment showing its different parts. (3 marks)
  • (b) Calculate the safe stopping sight distance for design speed of 50 kmph for two-way traffic on a two-lane road. Assume coefficient of friction as 0.37 and total reaction time of driver as 2.5 sec. (4 marks)
  • (c) Explain the necessity of providing transition curve. (3 marks)
  • Total: 3+4+3=10 marks
Question 5
  • (a) List the various types of transition curves used in highways. Write any two objectives of providing transition curves on the horizontal alignment highways. (4 marks)
  • (b) Design the superelevation required at a horizontal curve of radius 300 m for a speed of 60 kmph. Assume suitable data. (6 marks)
  • Total: 4+6=10 marks

MODULE-3 (2023)

Question 6
  • (a) Explain the construction procedure of WBM road. (4 marks)
  • (b) Write a note on 'cutback bitumen'. (3 marks)
  • (c) Distinguish between flexible pavement and rigid pavement. (3 marks)
  • Total: 4+3+3=10 marks
Question 7
  • (a) Write down the differences between tar and bitumen. (3 marks)
  • (b) Discuss the desirable properties of bitumen. (3 marks)
  • (c) Define the following terms: (2+2+2=6 marks)
    • (i) Flakiness index
    • (ii) Bitumen emulsion
  • Total: 3+3+(2+2+2)=10 marks

MODULE-4 (2023)

Question 8
  • (a) What is railway gauge? Briefly discuss about their types. (2+2=4 marks)
  • (b) Describe different types of railway joints. (3 marks)
  • (c) What is fishplate? (3 marks)
  • Total: (2+2)+3+3=10 marks
Question 9
  • (a) What is ballast? What are the functions of ballast? (2+3=5 marks)
  • (b) What are the requirements of an ideal rail? (5 marks)
  • Total: (2+3)+5=10 marks

MODULE-5 (2023)

Question 10
  • (a) What are the factors affecting the site selection for railway station? (3 marks)
  • (b) What is negative superelevation? What are the limits of superelevation on curves? (2+3=5 marks)
  • (c) What is the relation among super-elevation (ee), gauge (GG) and radius of the curve (RR)? (2 marks)
  • Total: 3+(2+3)+2=10 marks
Question 11
  • (a) Define the following terms: (2+2=4 marks)
    • (i) Cant deficiency
    • (ii) Tilting of rail
  • (b) Draw a sketch of a right-hand turn out showing its different components. (3 marks)
  • (c) Describe different types of station yards mentioning their purposes. (3 marks)
  • Total: (2+2)+3+3=10 marks

2022 Exam Paper

Question 1
  • Answer the following as directed : 1×10=10
    • (a) What is the full form of CRRI?
    • (b) Highway is the __ position of the centre line of the highway on the ground. (Fill in the blank)
    • (c) As per IRC, the maximum value of super-elevation for hill roads not bound by snow is 7%. (Write True or False)
    • (d) The extra width is provided on horizontal curves whose radius is less than (Fill in the blank)
    • (e) Write an objective of soundness test of road aggregate.
    • (f) The topmost layer of flexible pavement is known as surface course. (Write True or False)
    • (g) What is a permanent way?
    • (h) Write the standard length of rail for B. G. track on Indian Railways.
    • (i) The maximum value of cant deficiency for B. G. track is __ mm up to 100 kmph speeds. (Fill in the blank)
    • (j) Write the functions of Marshalling yard.

MODULE-1 (2022)

Question 2
  • (a) Write the construction steps of Macadam's road construction. (3 marks)
  • (b) Write the role of transportation in the development of nation. (3 marks)
  • (c) Briefly outline the highway development in India. (4 marks)
  • Total: 3+3+4=10 marks
Question 3
  • (a) State the difference between National Highway and State Highway. (3 marks)
  • (b) Write the basic requirements of an ideal alignment of highway. (5 marks)
  • (c) Briefly explain the engineering surveys needed for locating a new highway. (2 marks)
  • Total: 3+5+2=10 marks

MODULE-2 (2022)

Question 4
  • (a) Write two objectives of camber. (2 marks)
  • (b) What are ruling gradient and limiting gradient? (3 marks)
  • (c) Derive an equation for finding the superelevation required if the design coefficient of lateral friction is f. (5 marks)
  • Total: 2+3+5=10 marks
Question 5
  • (a) Write three objectives of transition curve. (3 marks)
  • (b) Explain on stopping sight distance and passing sight distance. (2+2=4 marks)
  • (c) Why is extra widening provided on horizontal curves of road? (3 marks)
  • Total: 3+(2+2)+3=10 marks

MODULE-3 (2022)

Question 6
  • (a) Name different tests conducted to determine the quality of an aggregate sample. (2 marks)
  • (b) Draw a section of flexible pavement and show its different structural components. (3 marks)
  • (c) Write a note on 'WBM'. (3 marks)
  • (d) Define the terms 'joint filler' and 'joint sealer'. (2 marks)
  • Total: 2+3+3+2=10 marks
Question 7
  • (a) Mention two merits and demerits of concrete pavement. (2+2=4 marks)
  • (b) Write a note on 'bituminous emulsion'. (3 marks)
  • (c) Differentiate between 'bitumen' and 'tar'. (3 marks)
  • Total: (2+2)+3+3=10 marks

MODULE-4 (2022)

Question 8
  • (a) Draw a neat sketch of an ideal permanent way and show its different components. (3 marks)
  • (b) Describe different types of rail joints provided in a railway track. (4 marks)
  • (c) Define 'fish plate'. (1 mark)
  • (d) Write the functions of 'spike' and 'key' provided as railway fixtures. (2 marks)
  • Total: 3+4+1+2=10 marks
Question 9
  • (a) Mention the requirements of an ideal permanent way. (3 marks)
  • (b) Describe the causes and preventional measures of creep of rail occurred in a railway track. (5 marks)
  • (c) Explain briefly different types of railway sleepers. (2+2=4 marks)
  • Total:3+ (2+2)+3=10 marks

MODULE-5 (2022)

Question 10
  • (a) What is the necessity of geometric design of a railway track? (5 marks)
  • (b) Explain the necessity of gradients. Discuss all types of gradients giving their permissible values adopted on Indian Railways. (5 marks)
  • Total: 5+5=10 marks
Question 11
  • (a) Explain the following with sketches: (2+2=4 marks)
    • (i) A scissor cross-over
    • (ii) Diamond crossing
  • (b) Write short notes on the following: (2+2+2=6 marks)
    • (i) Grade compensation
    • (ii) Negative cant
    • (iii) Coning of wheel
  • Total: (2+2)+(2+2+2)=10 marks