Transportation Engineering Quiz Set-1 [2025]

Transverse slope given to road cross section for surface water removal is known as

At the curved road outer side of road is increased than inner side is called as

Most suitable material for highway embankments is

When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment to be given is

The desirable length of overtaking zone as per IRC recommendation is equal to

Stopping sight distance is always

Reaction time of a driver

If the stopping distance is 60 meters, then the minimum stopping sight distance for two lane, two way traffic is

The effect of grade on safe overtaking sight distance is

The ruling design speed on a National Highway in plain terrain as per IRC recommendations is

The transition curve used in the horizontal alignment of highways as per IRC recommendations is

For design, that length of transition curve should be taken which is

The maximum design gradient for vertical profile of a road is

The percentage compensation in gradient for ruling gradient of 4 % and horizontal curve of radius 760 m is

If ruling gradient is 1 in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be

The camber of road should be approximately equal to

Which of the following shapes is preferred in a valley curve?

The value of ruling gradient in plains as per IRC recommendation is

The formation width of a double lane National Highway in embankment is

On the recommendation of Nagpur conference, the minimum width of a village road may be

Maximum safe speed on roads depends on the

In case of summit curves, the deviation angle will be maximum when

If an ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the length of summit curve for a stopping sight distance of 80 m will be

Highway facilities are designed for

Select the correct statement

Length of a vehicle affects

As per IRC recommendations, the maximum limit of super elevation for mixed traffic in plain terrain is

For the design of super elevation for mixed traffic conditions, the speed is reduced by

On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be

For a constant value of coefficient of lateral friction, the value of required super-elevation increases with

To calculate the minimum value of ruling radius of horizontal curves in plains, the design speed is given by

Minimum thickness of the base of a flexible pavement is

Design of highway is based on

For water bound macadams the camber should be

The absolute minimum radius of curve for safe operation for a speed of 110kmph is

The attainment of super elevation by rotation of pavement about the inner edge of the pavement

Select the correct statement

The maximum width of a vehicle as recommended by IRC is

Desire lines are plotted in

Which of the following methods is preferred for collecting origin and destination data for a small area like a mass business center or a large intersection?

The diagram which shows the approximate path of vehicles and pedestrians involved in accidents is known as

With increase in speed of the traffic stream, the minimum spacing of vehicles

Which of the following is known as design capacity?

If the average center to center spacing of vehicles is 20 meters, then the basic capacity of a traffic lane at a speed of 50 kmph is

With increase in speed of the traffic stream, the maximum capacity of the lane

Equivalent factor of passenger car unit (PCU) for a passenger car as per IRC is

If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maximum capacity of a traffic lane at a speed of 10 m/sec is

Scientific planning of transportation system and mass transit facilities in cities should be based on

If is a dorry abrasion test the loss in weight 21 gms, then the coefficient of hardness is

For improvement road carrying fast traffic an average level of illumination recommended by IRC is

The top height of route marker above crown level is

The diagram which shows all important physical conditions of an accident location like roadway limits, bridges, trees and all details of roadway conditions is known as

When the speed of traffic flow becomes zero, then

On a right angled road intersection with two way traffic, the total number of conflict points is

The background colour of the informatory sign board is

Which of the following is indicated by a warning sign?

"Dead Slow" is a

The ductility value of bitumen for suitability in road construction should not be less than

The maximum limit of water absorption for aggregate suitable for road construction is

Which of the following represents hardest grade of bitumen?

Penetration test on bitumen is used for determining its

Bitumen of grade 80/100 means

The shape of the transition curve used by the Indian railway is

Thickness of a pavement is may be reduced considerably by

When two road with two lane, two way traffic, cross at an uncontrolled intersection the number of potential major conflict point would be

RC-2, MC-2 and SC-2 correspond to

The recommended grade of tar for grouting purpose is

Softening point of bitumen to be used for read construction at a place where maximum temperature is 40° C should be

For rapid curing cutbacks, the oil used is

The method of design of flexible pavement as recommended by IRC is

For developing thinly populated areas, the correct choice of gauge is

Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called

The slipping of driving wheels of locomotives on the rail surface causes

The formation width for a railway track depends on the

i) type of gauge
ii) number of tracks to be laid side by side
iii) slope of sides of embankment or cutting The correct answer is

The formation width for a single line meter gauge track in embankment as adopted on Indian Railways is

Creep is the

Anti creep bearing plates are provided on

Study the following statements regarding creep.
i) Creep is greater on curves than on tangent railway track,
ii) Creep in new rails is more than that in old rails,
iii) Creep is more on steep gradients than on level track. The correct answer is

The maximum degree of curvature for Meter Gauge is limited to

Staggered joints are generally provided

When the rail ends rest on a joint sleeper, the joint is termed as

Which of the following types of sleepers is preferred on joints?

Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275x25x13 cm with 75cm sleeper spacing is

Standard size of wooden sleeper for Broad Gauge track is

Composite sleeper index is the index of

Number of dog spikes normally used per rail seat on curved track is

The type of bearing plate used in all joints and on curves to give better bearing area to the rails is

Flat mild steel bearing plates are used

The nominal size of ballast used for points and crossings is

At points and crossings, the total number of sleepers for 1 in 12 turnouts in Broad Gauge is

Width of ballast section for Broad Gauge is

The type of spike used for fixing chairs of bull headed rails to wooden sleepers is

The sleepers resting directly on girder are fastened to the top flange of girder by

Number of keys used in CST-9 sleeper is

Pandrol clips cannot be used with

Loose jaws of steel trough sleepers are made of

The desirable rate of change of cant deficiency in case of Meter Gauge is

Number of cotters used in CST-9 sleepers is

The limiting value of cant excess for Broad Gauge is

A Broad Gauge branch line takes off as a contrary flexure from a main line If the super elevation required for branch line is 10 mm and cant deficiency is 75mm, the super elevation to be actually provided on the branch line will be

Switch angle depends on

i) heel divergence
ii) length of tongue rail
iii) flangeway clearance
iv) throw of switch
The correct answer is

Life of cement concrete road is take as

Super elevation is provided

Normally the limiting value of cant is

The pathogens can be killed by

In Air pollution RSPM stands for

Which of the following is not a water borne disease?

Ground water is usually free from

Dissolved oxygen in streams is

Which of the following is water disinfectant method?

Which of the following is not a unit of city water treatment plant?

As compared to geometrical increase method of forecasting population, arithmetical increase method gives

The population of a town in three consecutive years are 5000, 7000 and 8400
respectively. The population of the town in the fourth consecutive year according to geometrical increase method is

The suitable method of forecasting population for a young and rapidly increasing city is

In water treatment for removal of solids an unit is used as shown in the figure
which is called as

BOD in portable water may be

Fresh and septic sewage are respectively

The depression of water table in a well due to pumping will be maximum ...

where R is the radius of influence

The devices which are installed for drawing water from the sources are called

The type of valve, which is provided on the suction pipe in a tube-well, is

Turbidity is measured on

On standard silica scale, the turbidity in drinking water should be limited to

Residual chlorine in water is determined by

If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to

The design period for a water supply project is taken as

Floating debris from water is removed through

The rain is generally termed as acidic if pH value of rain water falls below

The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about

The major disadvantage of lime soda process of water softening is that

Which of the following compounds is widely used for algae control?

The specific gravity of sewage is

The slope of sewer shall be

As the result of stabilization of sewage effluent, the most approximate end product is

The specific gravity of sewage is

Most of the bacteria in sewage are

The design discharge for the combined sewer system shall be taken as

The design discharge for the separate sewer system shall be taken as

The minimum and maximum diameters of sewers shall preferably be

The main disadvantage of cement concrete sewers is

Most suitable section of sewer in separate sewage system is

The best sewer material to resist hydrogen sulphide corrosion is

Laying of sewers is usually done with the help of

The ratio of minimum hourly flow to the average flow of sewage is

An egg shaped section of sewer

The velocity of flow does not depend on

The hydraulic mean depth (HMD) for an egg-shaped sewer flowing two-third full is

The effect of increasing diameter of sewer on the self cleansing velocity is

The most commonly used sewer under culverts is

The type of sewer which is suitable for both combined and separate system is

The characteristics of fresh and septic sewage respectively are

Which of the following retards the self purification of stream?

Settling velocity increases with

The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by

Select the correct statement

The rate of BOD exerted at any time is

The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is

Facultative bacteria are able to work in

Sewerage system is designed for

Sewage treatment units are designed for

Laying of sewers is usually done with the help of

Corrosion in concrete sewers is caused by

If the sewage contains grease and fatty oils, these are removed in

Generally the detention period for grit chambers is kept as

Which of the following unit works in anaerobic conditions?

Sludge volume index is defined as the ratio of

The gas from sludge digestion tank is mainly composed of

A pipe which is installed in the house drainage to preserve the water seal of traps is called

If any human being comes in contact of 600 ppm of CO for 10 hours effect will be

Effect of over exposure to ozone on human being if one of the following

Percentage of Argon by volume in atmosphere is

The dead storage in a reservoir is provided for storage of

pH value of water indicates its

Which of the following will contain water with the maximum amount of turbidity