A basic requirement of intersection at grade is
1.the relative speed should be high
2. the area of conflict should be small
3.it should clearly guide the driver
4. the relative angle of approach should be high
A channelization island should have
1.equal radius at entry and exit
2.small entry and large exit radius
3.large entry and small exit radius
4.large entry and exit radius
A pavement is classified as flexible or rigid based on its
1. base
2.wearing course
3.sub-grade
4.sub-base
Camber is provided in the road for
1.Getting least stopping distance
2.Getting better sighting distance
3. Effective drainage
4.Counteracting the centrifugal force
Critical load position in a rigid pavement design is taken as
1. interior loading
2.interior, edge and corner loading
3.edge loading
4.corner loading
Dowel bars are used in rigid pavements
1.to prevent warping
2.to take care of temperature stresses
3.to distribute pressure on base
4. all the above
Enoscope is used to find
1.spot speed
2.space mean speed
3.time mean speed
4.average speed
For designing highways, IRC recommends the coefficient of friction as
1.0.12
2.15
3.18
4.0.24
For earthen roads in heavy rainfall area common camber is
1.1 in 05
2.1 in 25
3.1 in 33
4.1 in 60
For highways width of formation in plan area is
1. 9 m
2.12 m
3.15 m
4.18 m
For rapid curing cutbacks, the oil used is
1. heavy diesel
2.light diesel
3.kerosene oil
4.gasoline
From CBR chart recommended by IRC thickness obtained is
1.Including wearing coat and 20 mm aggregates courses
2. Including wearing coat but excluding 20 mm aggregate coat
3. Excluding wearing coat but including 20 mm aggregate course
4. Excluding wearing coat and 20 mm aggregate courses
In case of hill roads, the extra widening is generally provided
1.fully on the inner side of the curve
2.fully on the outer side of the curve
3.equally on inner and outer sides of the curve
4.one fourth on inner side and three fourth on outer side of the curve
In steep terrain ruling gradient is limited to
1. 1 in 12.5
2.1 in 17
3.1 in 20
4.1 in 25
IRC recommends spacing between two consecutive expansion joints should not be more than
1.90 m
2.110 m
3.120 m
4.140 m
Joints in concrete roads are filled with
1. cork bound with bitumen
2. impregnated fibre boards
3. impervious elastic materials
4.any of the above
Length of a vehicle affects
1. clearance to be provided under structures such as over bridges, under bridges etc
2. width of shoulders and parking facilities
3.extra width of pavement and minimum turning radius
4.width of traffic lanes
Length of the transition curve is decided on the basis of
1. higher of the above
2.rate of change of radial acceleration
3. time rate
4.rate of superelevation
Longitudinal joints in rigid pavements
1.take care of the unequal settlement of the sub grade
2.help in laying out concrete in convenient widths
3.divide the pavements into lanes
4.all the above
Minimum of 8 m width and 2 m wide shoulders on the following roads are recommended
1. EH, NH and SH
2.NH and SH
3.EH, NH
4.MDR
Most suitable material for highway embankment is
1. organic soil
2.silts
3.clays
4.granular soil
Mostly used road in India is
1.Concrete road
2.Black top road
3.WBM road
4.Earthen road
Percentage of free carbon in bitumen is
1.equal to that in tar
2. less than that in tar
3.more than that in tar
4.none of the above
Recommended right of way for highways in open areas is
1.30 m
2.40 m
3.45 m
4.60 m
Sight distance at intersection should be equal to
1.Enabling the approaching vehicle to change speed
2.Enabling approaching vehicle to stop
3.Enabling the stopped vehicle to cross a main road
4.Highest the value of a, b and c
The camber of road should be approximately equal to
1.half of the longitudinal gradient
2.longitudinal gradient
3.two times the longitudinal gradient
4.three times the longitudinal gradient
The factor influencing camber is
1.amount of rainfall
2. nature of subsoil
3.type of wearing coat provided
4. topography of the area
The general requirement in constructing a reinforced concrete road is to place a single layer of reinforcement
1.at the middle
2.near the bottom of the slab
3.near the top of the slab
4.equally distributed at the top and bottom
The instrument used to study spot speed in traffic engineering is
1. Enometer
2.Enoscope
3.Speed recorder
4.Speedometer
The length of vehicle controls the design of
1.Overtaking distance
2.Camber
3.Gradient
4.All the above
The longest road constructed during the time of Shershah Suri was from
1.Lahore to Agra
2.Lahore to Patna
3.Lahore to Delhi
4.Lahore to Kolkata
The main object of a preliminary survey
1.to estimate cost of alternative alignment
2.to finalise the best alignment
3. to collect the necessary physical information and details of topography, drainage and soil properties
4.All of the above
The most economical lighting layout which is suitable for narrow roads is
1.single side lighting
2.central lighting system
3.staggered system
4.none of the above
The order in which a road is built is
1. sub-soil, sub-grade, sub-base, base
2.sub-base, base, sub-grade, sub-soil
3.sub-soil, base, sub-grade, sub-base
4.base, sub-soil, sub-grade, sub-soil
The road connecting a city to highway is called
1.collector street
2. local street
3.sub arterial street
4.arterial street
The sequence of survey in a road project is
1.topographic, preliminary, reconnaissance and detailed
2.preliminary, reconnaissance, topographic and detailed
3.reconnaissance, topographic, preliminary and detailed
4.topographic, reconnaissance, preliminary and detailed
To overtake a vehicle going at 40 kmph on two lane highway OSD is
1. 150 m
2.165 m
3.200 m
4.250 m
Traffic volume is
1.number of vehicles passing through a section of road in either direction in unit time
2. maximum number of vehicles passing a given road section in unit time in one direction
3.number of vehicles per unit length of road
4.None of the above
Transition curves are required to
1. improve aesthetic appearance of the road
2. enable driver to turns steering gradually
3.enable gradual introduction of superelevation
4.All of the above
Warning signs are on plates of _____ shape.
1.Circular
2.Rectangular
3.Diamond
4.Square
When bituminous surfacing is done on already existing black road the type of treatment to be given is
1.apply seal coat
2. tack coat
3.prime coat
4.spraying emulsion
Which of the following premix method is used for base course?
1. bituminous bound macadam
2.sheet asphalt
3.bituminous carpet
4.mastic asphalt
Which one of the following is not a informatory sign?
1.Name of destination
2.Name of road
3.Speed limit
4.Cross road ahead
Which one of the following is not a type of transition curve used?
1. cubic parabola
2.lemniscate
3.clothoid
4.parabolic