JNTU
JNTU B.Tech IV TRANSPORTATION ENGINEERING Previous Question Paper (December - 2019 - R16)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Give the classification of roads as per Nagpur Plan.
Answer
As per the Nagpur Road Development Plan, roads are classified into five categories: National Highways (NH), State Highways (SH), Major District Roads (MDR), Other District Roads (ODR), and Village Roads (VR).
What are the different types of road network patters?
Answer
Common road network patterns include: 1) Rectangular or Block pattern, 2) Radial or Star and Block pattern, 3) Radial or Star and Circular pattern, 4) Radial or Star and Grid pattern, and 5) Hexagonal pattern.
What is the need for extra widening on a horizontal curve?
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Give the factors on which the overtaking sight distance depends.
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Define Condition diagram and Collision diagram.
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Define Spot Speed, running Speed and average speed.
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Draw a neat sketch of cloverleaf.
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What are the types of at-grade intersections?
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What are the stresses due to friction and temperature in rigid pavements?
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What are the advantages and limitation of CBR method of design?
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Part B
Explain the Chronological highway development in India.
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What are obligatory points? Explain how these control the alignment.
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Explain briefly the stages of engineering surveys for locating a new highway.
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Explain briefly the drawings usually prepared in a highway project and their use.
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What is Camber? Specify the recommended ranges of camber for different types of pavement surfaces.
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Calculate the length of transition curve and the shift, when design speed is 80 Kmph, radius of circular curve is 250m, allowable rate of introduction of super elevation is 1 in 150 and pavement width including extra widening is 7.5m.
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Calculate the stopping sight distance for a design speed of 100kmph. Take the total reaction time as 2.5 sec. and coefficient of friction as 0.35.
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Derive an expression for finding length of transition curve on horizontal alignment?
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What are the different methods of carrying out traffic volume studies?
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Discuss the engineering measures to be taken for preventing accidents.
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Explain the role of road markings with examples in road safety and traffic regulations.
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Explain with neat sketches the classification of Traffic Signs.
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Define Channelization and explain the objectives of Channelization at Intersection.
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With neat sketch explain the suitability of various shapes of Rotary Islands.
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Draw and explain the different types of intersections.
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Describe the advantages, disadvantages and limitations of rotary Intersection.
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Describe the step by step procedure of design of flexible pavements as per IRC 37-2001.
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Design a new flexible pavement for a two lane undivided carriageway: Design CBR value of sub grade = 5.0%, Initial traffic on completion of construction = 300cvpd, Average Growth Rate = 6.0%, Design Life =10 years, and VDF = 2.5.
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Classify and list the factors affecting the design and performance of rigid pavements. Mention the importance of each.
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Calculate the stresses by Westergaard’s theory at corner and edge of a concrete slab. Wheel Load = 4800 kg, Modulus of Elasticity of concrete = 2 × 105 kg/cm2, Pavement thickness = 20 cm, Poisson’s ratio of concrete=0.15, Modulus of sub grade reaction = 2 kg/cm3, radius of contact area= 20 cm.
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