CE 6504 HIGHWAY ENGG, Third year, Department of Civil Engineering, Model Exam Questions.

Answer ALL Questions
PART A – (10 x 2 = 20 Marks)
1.Define  the term alignment and state its type ?
2.What are the factors affecting the highway alignment ?
3.State PIEV theory ?
4.States the objecyives of providing  transition curves in highways ?
5.What is ESWL?
6.What is meant by vehicle damage factor is IRC method of flexible pavement design ?
7.Define flakiness index ?
8.Define softening point of bitumen ?
9.What do you mean by skid resistance ?
10.What do you understand by term mud pumping ?


                                                PART B – (5x16=80 Marks)
1.a.Explain with neat sketches , any four factors controlling the alignment of loads ?
                                                                   (or)
b.Describe the conventional and modern methods of engineering surveys to be carried out for highway locations ?

2.a.i.Derive the formula for calculating super elevation on horizontal curve  (8 mark)
ii.What is the need for transition curve ? How its length is determined ? (8 mark)
                                                                    (or)
b.iExplain the types of gradients ? (8 mark)
ii.Explain the two stages of vertical curve ?(8 mark)

3.a.Explain in detail about the IRC method of flexible pavement design .Discuss the limitation of this method ?
                                                                    (or)
b.i.Explain the design consideration for spacing of expansion joint and contraction joint ? (8 mark)
ii.Explain the recommended design procedure for design of rigid pavements by IRC.(8mark)

4.a.Describe any four laboratory tests on aggregates ?
                                                                    (or)
b.i.With neat sketches , explain the test procedure for assessing polishing value of aggregate.?
ii.Discuss the significance of stone polishing value of aggregate?

5.a.List any Eight cracks and defects in flexible pavement and describe their respective symptoms , possible causes and the treatment /repair for each defect ?
                                                                     (or)
b.i.Explain the methods of evalution of pavement failure and strengthening ? (8 mark)
ii.Explain the methods of maintaining bituminous surfaces ? (8 mark)