TRE I
V SEMESTER
Q Explain the necessity and objects of highway planning
Q What are the various requirements of an ideal highway alignment? Discuss
briefly.
Q Briefly explain the engineering surveys needed for locating a new highway.
Q Explain Jaikar committee reports and development of 1st road plan.
Q Explain briefly the various aspects investigated during parking studies. What
are uses of these studies?
Q What are the objectives of planning for road development in India? Discuss
Nagpur Plan at length. Also comment on its shortcomings.
Q Explain the following with their significance
a)Passenger car unit
b)Spot speed Studies
Q Explain with neat sketches five regulatory and warning signs.
Q Explain various methods of origin and destination studies.
Q What are the various types of Traffic signs?
Q What is super elevation? On what factors the value of super elevation depends
Derive the super elevation expression
Q Find the safe overtaking dist for a highway having a design speed of 120 kmph
assume all data suitably
Q It is proposed to align a two lane highway in an urban area, it was necessary to
provide a horizontal circular curve of radius 300m .The design speed of vehicle
is 90kmph .Length of wheel base of largest truck 6.1m
Design a)Super elevation
b)stooping sight dist
c)Intermediate sight dist
d)Extra widening
Q
(1) Explain a) ESWL b)CBR method of pavement design
(2) Following data refers to a pavement carrying heavy traffic of 300
commercial vehicles/day. Soil portion passing 0.074 sieve =50%, liquid limit
=40%, plastic limit =20%, Estimate group index of soil.
Q A national highway passing through a flat terrain has a horizontal curve of radius
equal to the ruling minimum radius. If the design speed is 100 kmph, calculate
absolute minimum sight dist, super elevation, extra widening, and length of transition
curve, assume necessary data suitably.
Q write notes on a)group index b)softening point test on bitumen c)Geotextiles
d ) Impact test on aggregate
Q a) Enlist the various tests to be performed on bitumen. Discuss any three with their
significance in road construction. b) Explain the construction of WBM road.
Draw neat sketch.
Q a) Derive an expression for finding SSD at level and at grades.
b) A valley curve is formed by a descending gradient of 1 in 40 which meets an
ascending gradient of 1 in 30. (1)Find the length of valley curve for a design speed
of 80 kmph. (2) Find the position of the lowest point of the valley.
Q Write notes on (1) traffic characteristics (2) regulatory signs (3) pavement
unevenness (4) transition curve
Q Describe the ductility test on bitumen. What are IRC specifications for same also
describe construction of cement concrete pavement.
Q Write short notes on (1) Maintenance of WBM road (2) Los Angeles abrasion test
(3) Cutback and emulsion
Q What are the various factors which affect the design of a pavement structure?
Discuss briefly
Q Design pavement for new carriageway with the following data, (1) Initial traffic in
each direction in the year of completion of construction = 2800 CV/ day
(2) Design life =10yrs.
(3)Design CBR of sub –grade =5%
Q Give the analysis of overtaking sight distance. Comment on overtaking zone.
Q Explain with neat sketches various failures of flexible and rigid pavement.
Q Explain the construction procedure of bituminous roads.
SECTION B
Q. Explain how the bridges are classified. Comment on numbering of bridges. What
are the factors considered while selecting the site for a proposed bridge?
Q. A bridge is proposed to be constructed across an alluvial stream carrying a
discharge of 250 cubic meter/second. Assuming value of silt factor f=1.00. Determine
maximum scour depth when the bridge consists of 4 spans each of 20m.
Q. What are preliminary investigations & data required to be collected for deciding
the length & the type of bridge for a major bridge project?
Q. Explain with neat sketch Deck type, Through type & Semi-through type bridges.
Q. What do you understand by the term caisson? With the help of a neat sketch,
describe the open caisson foundation.
Q. Enumerate the loads and forces that are considered in the design of bridge
abutment. Write a short note on bridge bearings.
Q. (a) Explain with neat sketches various types of bridge superstructure. (b)Explain
with neat sketches ‘Well Foundation’ for bridges.
Q. Define bearing and mention the purposes of providing bearings in a bridge, with
neat sketches. Explain fixed bearings.
Q. Write short notes on: 1) Movable bridges 2) Repairs and maintenance of bridges.
Q. (A) Explain the following terms: 1) Launching of bridges 2) Aesthetics of bridges
3) Rating of bridges. (B) What is meant by bridge superstructure? What are its
various types? Discuss in brief.
Q. a) Explain seismic forces for bridges. b) What are cofferdams? Explain with neat
sketches various types and requirements.
Q. Explain various forces to be taken into account in the design of pier and an
abutment of Road Bridge. Illustrate with neat sketches, where they act in each case.
Q. What are ‘Return-Walls ‘and ‘Wing-Walls’? Discuss the purpose for which they
are provided.
Q. What is the Causeway? How do they differ from other type of cross-drainage
work?
Q. Explain with neat sketch various types of bridge superstructure for R.C.C. bridges.
Q. Write short notes on: A) Economic span of a bridge. B) IRC loading class AA
specification. C) Culvert.
Q. Derive an equation for Economic span.
Q. Explain the term Afflux.
Q. What are bridge bearings? Discuss their suitability.
Q. Write short notes on: A) well sinking. B) Bridge identification. C) Clearance and
free board.
Q. Estimate the minimum depth of foundation of a bridge from the following data:
(i)Maximum flood discharge = 942 cumecs. (i) Lacey’s silt factor = 0.72 (iii)
Bridge openings = 3 no. of 20 m each.
Q. What are the various methods of estimating flood discharge of a bridge? Explain
any one in detail.
Q. Write short notes on: (i) Movable bridges (ii) Pneumatic cassions (iii) Cantilever
and suspension bridge.
Q. Enumerate the factors affecting the selection of site for a bridge.
Q. A catchment area of 30 sq. kilometer recorded a severest rainfall of 300 mm
obtained from data of past 50 years over a period of 3 hours. Farthest point on
catchment from the bridge site lie at 3.5 km. Average ground slope is 1 in 100 with a
run off co-efficient of 0.85. Compute the amount of water inflow may occur under the
bridge.