OXFORD ENGINEERING COLLEGE

(NAAC Accredited with “B” grade)

DEPARTMENT OF CIVIL ENGINEERING

LIST OF QUESTIONS

YEAR/SEM: III YR/V SEM STAFF NAME: R.SARANYA/AP

SUB CODE: CE6504 SUB NAME: HIGHWAY ENGINEERING

UNIT 1

PART-A

1) What is ideal alignment? (May/Jun 2013, 2014)

2) Define chamber? (May 2013), (Nov/Dec 2015)

3) What are the significant recommendations of Jayakar committee report?

(May/June 2011)

4) What are the objectives of the engineering surveys? (May/June 2011)

5) What is the role of MORTH? (Nov/Dec 2011)

6) classify the urban roads as per IRC (Nov/Dec 2011)

7) State any two contributions made by Jayakar Committee for the road

Development in India. (April/May 2010)

8) Define ruling gradient and exceptional gradient. (April/May 2010)

9) What are the important modifications made in macadam’s method with respect

to the other method? (May/June 2012)

10) What are the objectives of highway research board? (May/June 2012)

11) Name the type of force is acting on a vehicle moving on a curved path

subjected to an outward force? (May/June 2014)

12) What are the objectives of central road fund? (May 2007)

13) State the principle of highway financing (May/June 2009)

14) State the factors controlling the alignment of highway (April/May 2008)

15) State the basic requirement of an ideal alignment between two terminal stations

(April/May 2010),(Nov/Dec 2005)

16) What is carriage way? (Nov/Dec 2013, 2015)

17) What are the junctions of median in urban roads? (April/May 2011)

18) What are the special features of early roman roads? (Nov/Dec 2012)

19) Draw the cross section of two lane urban roads.(Nov/Dec 2012)

20) Draw a typical cross section of roman roads. (Nov/Dec 2014)

21) How length of national highways has to be computed as per the third road

development plan of India.(Nov/Dec 2014)

22) What are the objectives of IRC?

23) State various classifications of roads.

24) What is CRF?

25) What is BOT project?

PART-B

1. Explain the requirements of ideal highway alignment. (8)(Nov 2011)

(April/May 2013)

2. Describe the conventional and modern method of engineering survey to be

carried out four highway location (Nov 2015, 2014)

3. Explain the factor influencing highway alignment. (Nov/Dec 2013)

4. Explain the classification and cross section of Urban Roads?(May/June 2013)

5. Define (May/June2011, 2012)

i. CRF

ii. IRC

iii. CRRI

iv. NHAI

v. MORTH

6. Elaborate the salient features of highway cross sectional elements.

(Nov/Dec2014, 2015)

UNIT-2

GEOMETRIC DESIGN OF HIGHWAY

Part-A

FIRST HALF

1. Define limiting gradient. (Nov/Dec 2011)

2. What is extra widening? (Nov/Dec 2011) 3. What is meant by super elevation? (May/June2012, 2013) (Nov/Dec 2015) 4. State PIEV theory? (May/June 2013, 2014)(Nov/Dec2011) 5. What do you understand by non-passing sight distance? (May/June 2010) 6. Write down the requirements of an ideal transition curve. (May/June 2010)

7. Define stopping sight distance (may/Jun 2012,2013)

8. What is the necessity of widening of pavement in curves (Nov/Dec2012)

9. What is meant by inter mediate right distance (Nov/Dec2012)

10. What is transition curve (Nov/Dec2013)

11. Briefly explain ellumination sight distance (Nov/Dec 2013)

12. Differentiate leg distance and breaking distance (Nov/Dec 2014)

PART B

1. (I) compute the stopping sight distance on a highway with a design speed of 80 kph, if the highway is on an upgrade of 2%. (8) (Nov/Dec2011) (ii) Outline the design elements of hill roads. (8) (Nov/Dec2011) 2. (I) Explain the factors governing the super elevation with sketch (8) (April/May 2014)

(ii) What is the super elevation to be provided on a horizontal curve on a national Highway in plain terrain (Hint: Design Speed =100 kph), if the curve has a radius of 310 m? (8) (Nov/Dec2011) 3. Explain the factors affecting sight distance. (May/June 2013) SECOND HALF PART A

1. What do you understand by curve resistance (Nov/Dec 2014)

2. State the objective of providing transition curves in highways (Nov/Dec 2011)

3. Where the vertical curves are provided (may-Jun 2011)

4. Define right of way (May /Jun 2009)

5. Draw the typical c/s of four lanes divided national highways and indicates midst of carriage way shoulders and right of way (Apr/May 2010)

6. What is mean by minimum gradient in highways? Why it is provided? (April-May 2008)

7. What is mean by exceptional gradient (M/J 2009)

8. Differentiate camber from super elevation (M/J 2009)

9. Draw the cross section of dual three lane urban road (April/May 2008)

10. What are the functions of transition curves (April/May 2008)

11. What are the factors governing the super elevation of a road surface (April/May 2011)

12. Mention any four factors which controls the geometrics design of highway

13. State the concept of maximum and minimum super elevation

14. What is the need for overtaking sight distance?

PART-B

1. Explain the steps involved in the design of hill roads. (May/June 2013) 2. A valley curve is formed due to two gradients +2.5% and –1.75%. If the design speed of this highway is 80 kmph, determine the stopping sight distance and design the valley curve to fulfill both comfort and head light sight distance conditions. (April/May 2010) 3. What are the objectives of widening of road pavement at horizontal curves? Derive an expression for the extra widening. (April/May 2010)

UNIT-3

PART-A

1. What is ESWL? (May 2013)(May 2012)

2. Explain rigid pavement? (May 2013)

3. Define optimum moisture content. (Nov/Dec 2011)

4. What are dowel bars? (Nov/Dec 2011)

5. How do you calculate the ESWL at given depth below the pavement for a dual Wheel assembly? (April/May 2010) 6. What is radius of resisting section? (April/May 2010)

7. Define pavement (May/June 2011)

8. List out various types of joints in rigid pavement (May/June 2011)

9. Define vehicle damage factor (Nov/Dec 2012)

10. Mention the types of joints in rigid pavement (May/June 2014)

11. Explain flexible pavement (May/June 2014)

12. Mention any four factors controlling the design of rigid pavement

(Nov/Dec 2012)

13. List the application of rigid pavement (Nov/Dec 2013)

14. Give the components of flexible pavement (Nov/Dec 2013)

15. Define optimum moisture content (Nov/Dec 2013)

16. What are dowel bars? (Nov/Dec 2013)

17. What do know about grain to grain transfer of stresses? And on which pavement it will happen? (Nov/Dec 2014)

18. What are the critical wheel load positions in the rigid pavement? According you which is more critical (Nov/Dec 2014)

19. What is rigidity factor in the design of highway pavements? (May/June 2012)

20. What are the components of flexible pavements? (May/June 2009)

21. Explain the different joints in cement concrete pavement (May/June 2009)

22. What are the stresses produced by temperature in a concrete pavement (May/June 2007)

23. What are warping stresses? 24. What are the critical load positions? 25. What are the Failure criteria of rigid pavements? PART-B 1. (i) State the limitations of CBR method of pavement design. (6)

(April/May 2010) (ii) Using the following data, design the flexible pavements layers (10) CBR of the sub-grade soil = 5% CBR of poorly graded gravel sub-base = 15% CBR of WBM = 80% Design life = 15 years Annual rate of increase in the heavy vehicles = 7.5% No. of heavy vehicles per day during last count = 200 No. of years between the year of completion and year of last count = 3 years. 2. (i) What are the objectives of joints in cement concrete pavement? Sketch the different types of joints used in pavement construction. Indicate the principle of design. (10) (ii) Explain mud pumping. What are the causes for mud pumping and how it can be prevented? (6)(April/May 2010) 3. (i) List the different stresses induced in cement concrete pavements. Discuss the critical combination of these stresses. (8)

(ii) Explain the CBR method of design of flexible pavements.(8)(Nov/Dec2011)

4. (i) How will you calculate the Equivalent Single Wheel Load for a given Combination of wheel loads? (8) (ii) Explain the IRC method of design of rigid pavements. (8)(Nov/Dec2011)

5. Explain the functions of components of flexible pavement. (April/May2013)(Nov/Dec 2015)

6. Design the flexible pavement for construction of new Highway with the following data.

Number of commercial vehicles as per last count = 1000

Period of construction = 3 years

Annual traffic growth rate = 8% Category of road = NH, two lane single carriageway Design life = 10 years.

Unit -4

PART-A

1. Define Flaky aggregates (April/May 2010)

2. What is purpose of applying tack coat in bituminous road construction? (April/May 2010)

3. Differentiate b/w cut-back bitumen and bitumen emulsion?

4. What is the purpose of applying tack coat in bituminous road construction?

5. What is the requirement of good aggregate? (Nov/Dec 2012)

6. What is the function of tack coat in bituminous construction? (Nov/Dec 2012)

7. Define elongation indices? (May/Jun 2014)

8. Explain water bound macadam road? (May/Jun 2014)

9. Mention the names of test recommended by Indian standards for testing highway material? (Nov/Dec 2013)

10. Define softening point? (Nov/Dec 2013; M/J2012)

11. Mention a few desirable properties of highway material?

12. Write the importance of California bearing ratio?

13. Diff b/w far and bitumen? (Nov/Dec 2011)

14. What is elongation index? (Nov/Dec 2011)

15. Mention the desirable prop of soil as highway material? (Nov/Dec 2014)

16. Diff prime coat and seal coat? (Nov/Dec 2014)

17. State the desirable properties of road aggregate? (May/Jun 2012)

18. Define flakiness index?

19. Mention the function of base course?

20. What is mean by elongation index? (May/Jun 2009)

21. What are the tests conducted on aggregates? 22. What do you mean ductility and viscosity of bitumen? 23. What are the limitations of C.B.R test? 24. Enumerate different types of bituminous materials. 25. Differentiate between expansion joint and construction joint. PART-B

1. (i) Distinguish between impact and abrasion values of aggregate. How are these Values measured? (8) (Nov2011)

(ii) Explain the steps involved in the concrete mix design for concrete roads (8) (Nov 2015) 2. (i) Distinguish between viscosity and softening point of road bitumen. Describe their test procedures. (8) (Nov2011) (ii) Discuss the importance of surface and sub-surface drainage in highways. (8) 3. Explain the importance and produce of field density test and crushing strength test?(May 2013) 4. Discuss the merits and Demerits of cement concrete roads? (May 2013) 5. Describe how impact value of aggregate and specific gravity of bitumen are found by experiment in laboratory? (April/May 2010) 6. Explain the procedure for stone polishing value test? (Nov/Dec 2013) 7. Explain the importance and procedure for California bearing ratio test? (Nov/Dec 2015)

UNIT-5

PART-A

1. When is overlay needed in pavements? (April/May 2010)

2. What is unevenness index? (April/May 2010)

3. What are the types of cracks formed in the cement concrete roads? (Nov/Dec2012)

4. State the remedial measures of the edge in cracks in rigid pavement (Nov/Dec2012)

5. List the types of defects in flexible pavements (May 2014) (Nov/Dec2013)

6. Name the four methods of pavement evaluation (May 2014) (Nov/Dec2013)

7. Give examples for surface defects in pavements (Nov/Dec)

8. What is pavement evaluation? (May/June2013)

9. Define pavement roughness index (May/June2013)

10. What is serviceability of pavements (Nov/Dec 2011)

11. What are the general causes of pavements failures? (Nov/Dec 2014,2015)

12. Mention the type of skidding (Nov/Dec 2014, 2015)

13. What is meant by spalling of joints?(May/June2012)

14. What are the causes of scaling? (May/June2012)

15. Draw the figure for failure in subgrade of flexible pavement.(May/June2012)

16. What is meant by streaking (April/May 2008)

17. What is meant by mud pumping (May/June 2012)

18. What do you understand about rutting?

19. What is an alligator crack? ((Nov/Dec2015)

20. What is PWD and state it use (Nov/Dec2015)

21. Define Spalling of joint. 22. Enumerate the broad classification of maintenance activities of highways. 23. What is the Importance of drainage? 24. What are the failures in sub-base and base course? 25. Define raveling. PART-B 1. (i) Discuss with the help of sketches the different types of failures in flexible pavements. (8) (Nov/Dec 2011) (ii) Explain the procedure for the structural evaluation of pavements. 2. (i) What are the different types of failures in cement concrete pavements? (8) (ii) What are flexible overlays? Explain how the Benkelman Beam is used to Design the thickness of the overlay. (8) (Nov/Dec 2011)(2015) 3. Explain the method of strengthening damaged pavements.(May/June2013)

4. Define overlay and the procedure for design and construction of overlays (Nov/Dec2015)(Nov/Dec 2013) 5. Explain any three non-destructive testing method of pavement deflection. (Nov/Dec 2013)(2015) 6. Discuss the causes for the disintegration of flexible pavements. (May/June2013)