Transportation Engg. & Geomatics Engg FOR GATE

Transportation Engg. & Geomatics Engg Questions With Full Solutions

Q.1) If it is found that tyre walls of a vehicle are in tension then rigidity factor is?
a. greater than 1
b. equal to 1
c. less than 1
d. can not be determined







Correct Ans. C (less than 1)

Solution--

Q.2) The ruling minimum radius of horizontal curve of a national highway in a plain terrain
for a ruling design speed of 120 kmph with e = 0.07 and f = 0.15 is (in meter)?
a. 377
b. 467
c. 516
d. 567






Correct Ans. C

Solution

Q.3) Which of the following cannot be achieved by remote sensing?

a. Detection of forest fires
b. Detection of pollutants
c. Detection of earthquake
d. Land use pattern







Correct Ans. c ( Detection of earthquake)




Q.4) Road geometrics are designed for the speed of
a. 15th percentile
b. 85th percentile
c. 98th percentile
d. 100th percentile






Correct Ans. C (. 98th percentile)


Q.5) What is the percentage temperature correction on the runway is
a. 17.94%
b. 18.24%
c. 19.70%
d. 21.40%





Correct Ans. C (19.70%)

Solution

Q.6) EDM in a total station measures directly?
a. Vertical angles
b. Horizontal angles
c. Slope distances
d. Horizontal distances





Correct Ans. C (Slope distances)



Q.7) The size of theodolite is defined by ?
a. the diameter of the graduated circle of lower plate
b. the diameter of the graduated circle of upper plate
c. the height of theodolite
d. the length of the telescope





Correct Ans. A ( the diameter of the graduated circle of lower plate)



Q.8) Which of the following factors affect the geometric design of road?
1. Topography 2. Traffic factors
3. Design hourly volume
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. All of these





Correct Ans. D (All of these)


Q.9) The reduced bearing of a 20 m long line segment is N30° E. The departure of the line is
______ m.?






Correct Ans. 10 (9.99 - 10.0)


Solution--

Transportation Engg. & Geomatics Engg Questions With Full Solutions


Q.10) The width of expansion gap is 2.5 cm in a cement concrete pavement. The spacing
between expansion joint for a maximum rise in temperature of 30°C is _________ m.
[Take coefficient of thermal expansion of concrete as 10 × 10–6 /°C]?







Correct Ans.41.67 (41- 42)



Solution--

Q.11 Maximum parking density can be achieved on a street parking by keeping vehicles at
an angle of ____________ degrees from the street wall.?






 Correct Ans. 90 (89.99 - 90.01)

Solution----.Maximum density can be achieved by keeping vehicle perpendicular to street wall.






Q.12) If 25,000 vehicles crosses a road in a day and 5000 vehicles cross the road between 9
am to 10 am then hourly expansion factor is ____________?.





Correct Ans. 5 (4.99 - 5.01)

Solution-
HOURLY EXPANSION FACTOR =25000/5000  =5Ans







Q.13) The length of a line measured with a 20 m chain was found to be 250 . The true length
of the line if the chain was 10 cm too long, will be ___________ m ?





Correct Answer- 251.25 (250 - 251.50)

Solution-

Transportation Engg. & Geomatics Engg Questions With Full Solutions


Q.14) On a hill road a ruling gradient of 5% is provided and has a radius of horizontal curve
of 50 m. Design speed on the road is 50 kmph. The compensated gradient of the curve
is _________ %.







Correct Ans.4 (3.99 - 4.01)

Solution-

Q.15) In a compacted cylindrical bituminous mix
then percentage voids in the sample is ___________.





Correct Ans.9.43 (9.4 - 9.5)

Solution-

Q.16) A plan drawn to a scale of 1 : 4000 was measured by mistake by a scale of 1 : 5000. The
percentage error in the measured area will be ___________





Correct Ans. 56.25 (55.50 - 57.40)

Solution-

Q.17) An offset is 15 m long and the scale of plotting is 1 cm = 30 m. If the accuracy in linear
measurement is 1 in 20 combined permissible error is 0.025, then what will be the
permissible error in the angular measurement?
a. 12°
b. 8°
c. 4°
d. 0°


Solution-

Correct Ans. (D)



Q.18) Which of the following graphs for Marshall stability chart is/are CORRECT?

a. 1, 2 and 3
b. 1 only
c. 1 and 2
d. 1 and 3



Correct Ans. (A)
With increase in bitumen content void content decreases.




Transportation Engg. & Geomatics Engg Questions With Full Solutions



Q.19) For designing a 2 phase fixed type signal at intersection having North-South and East-
West road where only straight ahead traffic is permitted, the following data is available,

Total time lost per cycle is 9 sec. The cycle length (seconds) as per Webster’s method
is?



a. 53
b. 62
c. 107
d. 115





Correct Ans. (B)





Q.20) Which of the following statements is/are correct for an uncontrolled right angle
intersection of two, 2 lane roads on which traffic is allowed in both directions?

1. Ratio of merging conflict points to crossing conflict points is 2.
2. Ratio of weaving conflict points to merging conflict point is (2/3).
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2




Correct Ans. (A)


Solution-

  NO.Of Point Of Conflict:-
                                               Crossing-04
                                               Merging-08
                                               Weaving-12



Q.21) On a 2 lane highway road, there is a horizontal curve of radius 360 m and length 180 m.
If stopping sight distance is 90 m then set back distance from center line of inner lane
required is?
(Assume pavement width = 7 m)
a. 1.87 m
b. 2.82 m
c. 3.70 m
d. 4.57 m





Correct Ans. (B)

Solution-

Q.22) The data given below are obtained for design of a flexible pavement.
Initial traffic = 2000 cvpd
Traffic growth rate = 10% per annum
Design life= 15 years
Vehicle damage factor = 2.8
Distribution factor = 0.75
The design traffic in terms of million standard axles to be catered would be?

a. 8 msa
b. 18.40 msa
c. 48.70 msa
d. 56.36 msa





Correct Ans. (C)



Transportation Engg. & Geomatics Engg Questions With Full Solutions


Q.23) Horizontal transition curves are provided on roads to?
1. Introduce centrifugal force gradually.
2. Provide sufficient overtaking distance.
3. Improve aesthetic appearance.
a. 1, 2 and 3
b. 1 and 2
c. 2 and 3
d. 1 only




 Correct Ans- D
Overtaking criterion is not considered in horizontal transition curve design.




Q.24) A bubble tube of a level has a sensitiveness of 24″ per 2 mm division. The error in the
reading on a staff held at a distance of 110 m from the level when the bubble is
deflected by two divisions from the centre will be ?

a. 19.96 mm
b. 21.18 mm
c. 23.67 mm
d. 25.59 mm






 Correct Ans-(D) 25.59 mm




Q.25) A vehicle is moving on a descending gradient with a velocity of 60 kmph. Suddenly
driver observes an obstacle and applies brakes having efficiency of 80%, stops after
covering a distance of 260 m. If longitudinal friction on road is 0.40 then descending
gradient is _________% (Magnitude only)








 Correct Ans-25.6 (25.0 - 26.1)





Q.26) In a closed traverse XYZ, the following readings were taken:
If station X is free from local attraction, the corrected bearing (in degree) of ZY is
_________?








 Correct Ans-295 (294.99 - 295.01)









Q.27) The speed density (u – k) relationship on a single lane road with unidirectional flow is u
= 65 – 0.8 K where u is in km/hr and K is in Veh/km. The capacity of the road is
___________ veh/hr.?






 Correct Ans- 1320 (1319 - 1321)








Q.28) For a highway section, following vehicular data was observed:
The space mean speed of vehicles is _________ km/hr.






 Correct Ans-40.91 (40 - 42)







Q.29) An observation car is moving on a one way road of 12 km stretch. This ride takes 35
minutes to reach destination point which includes stoppage of car for 10 minutes. If car
was overtaken by 70 vehicles and overtakes 25 vehicles and during stoppage observer
counts 40 vehicles, then average speed of vehicle stream on the road is _____________
km/hr.





 Correct Ans-15.6 (15 - 16.2)





Q.30) A verticle summit curve is formed at the intersection of 2% and –4% gradients. If the
design speed on the road is 60 kmph and longitudinal coefficient of friction is 0.40 then
length of summit curve as per SSD critieria provided should be _______________ m.
[Take reaction time = 2.5 sec]





 Correct Ans-81.02 (79 - 82)






Q.31) Following observations were made for an axle load survey on a road
If the standard axle load is 80 kN and 2100 vehicles passes everyday then the vehicle
damage factor is __________.?






 Correct Ans-0.15 (0.14 to 0.16)




Transportation Engg. & Geomatics Engg Questions With Full Solutions

Q.32) A vane of 3.0 m above the foot of a staff was sighted at a point 3000 m away from the
instrument. The observed angle of elevation was 2° 30′. The reduced level of the
trunnion axis being 200 m. The reduced level of the staff station will be __________ m.
Also assume correction for curvature and refraction.?








Correct Ans- 327.37 (325 - 330)





Q.33 On a broad gauge 3° curve, the equilibrium cant is provided for a speed of 75 km/hr.
The value of maximum allowable speed after allowing a maximum cant deficiency,
is__________ kmph.?








 Correct Ans. 94.46 (94 - 95)



Solution-

Share on Whatsapp

Thanks For Visiting

Have A Nice Day

High Alumina cement

 What is  high Alumina cement(HAC)?




High Alumina cement(HAC) is manufactured by mixing of Bauxite( aluminium ore) and lime at a certain temperature(1600)

The initial setting time of high Alumina cement is about 3.5 - 4 Hrs and final setting time is about 5 Hours

The setting of High Alumina cement is generally affected by the addition of plaster of Paris, lime, Portland cement and organic matter thus no additive should be used.

High Alumina cement is very reactive and has very high compressive strength.

Characteristics of High Alumina Cement are:-

1)Hardening property of High Alumina cement is fast.

2)The initial setting time of high Alumina cement is about
3.5 -4 Hrs
3)It has high durability in sulphuric acid.

4)The pH level of High Alumina cement is  low.

5)High resistant to chemical corrosion.

6)it forms ceramic bond at high temperatures so It acts as a bonding material when added in refractory castables

7)The refractive index of this cement is high.

Uses

1) High Alumina cement is mostly used in marine construction and sewer infrastructure

because of it's rapid hardening capacity.

2) High Alumina cement is also used in Refractory concretes where requires more strength at very high temperature.

3)High Alumina cement is also used in Pre Cast Concrete

Composition percentage of constituents. IN High Alumina cement(HAC)

Share on Whatsapp

Thanks For Visiting

Have A Nice Day

Environmental engineering GATE MCQ

Environmental Engg Mcqs

Quiz

 

1. Wilson’s disease is caused by
   1.   Lead
   2.   copper
   3.   iron
   4.   Manganese
2. The uniformity coefficient of slow sand filter is generally
   1.   3
   2.   1.6
   3.   1.65
   4.   1.75
3. Blue baby disease (methamoglobinemia) in children is caused by the presence of
   excess of ?
   1.   Fluoride
   2.   Lead
   3.   Chloride
   4.   Nitrates
4. A 2.5% solution of a sewage sample is kept at an incubation temperature of 20°C. If
   initial DO and final DO values after 5 days of incubation period are 9.36 mg/l and 6.20mg/l respectively, then the BOD will be?
   1.   a. 114.8 mg/l
   2.   119.3 mg/l
   3.   126.4 mg/l
   4.   128.7 mg/l
5. ________ G value with ________ time tend to produce small, dense flocs.?
   1.   a. Large, long
   2.   Low, long
   3.   Large, short
   4.   Low, short
6. Free ammonia indicates?
   1.   a. Quantity of nitrogen present in sewage before the decomposition of organic matter is
      started.
   2.   Presence of partly decomposed organic matter.
   3.   Presence of fully oxidized organic matter.
   4.   Very first stage of decomposition of organic matter.
7. What are the air pollutants responsible for acid rain in downwind areas for major
   industrial emission?
   1.   Methane and hydrogen sulphide
   2.   Carbon dioxide and hydrogen sulphide
   3.   Sulphur dioxide and oxides of nitrogen
   4.   Hydrogen sulphide and oxides of nitrogen
8. If a town is having a population of 90000 then according to Manual of Water Supply and
   Treatment, the fire demand will be ____________ kl.
   1.   948.68( 940 - 960)
   2.   988.68( 980 - 990)
   3.   648.68( 640 - 660)
   4.   548.68( 540 - 560)
9. Consider the following statements regarding population forecast:
   1. Arithmetic increase method gives a low value and is suitable for well settled and
   established community.
   2. Geometrical increase method gives much higher value and is mostly applicable for
   growing towns and cities having vast scope of expansion.
   3. The ‘S ’ shaped logistic curve for any city gives complete trend of growth of the city
   choose right from beginning to saturation limit of population of the city.
   Which of the above statements are CORRECT?
   1.   a. 1 and 2
   2.   2 and 3
   3.   1 and 3
   4.   All of the above
10. 600 m3/day of water is to be obtained from a proposed infiltration gallery, which is
    placed at 6 m depth from sub-surface water table. The coefficient of permeability of the
    soil aquifer is 100 m/day. What is the length of gallery if the drawdown in the gallery on
    pumping is not to exceed 4 m? The radius of influence may be assumed to be 100 m.
    1.   37.5 m
    2.   34.3 m
    3.   31.6 m
    4.   29.8 m
11. Consider the following statements:
    1. Hydraulically equivalent section means that two sections can carry same discharge,
    while flowing full,on the same grade and of same material.
    2. The drop manholes are provided in sewerage system when there is change in size of
    sewers.
    3. Bacterial action are responsible for crown corrosion.
    Which of the above statements are CORRECT?
    1.   1 and 2 only
    2.   2 and 3 only
    3.   . 1 and 3 only
    4.   All of these
12. A sample of water requires 113 ml of distilled water to render the odor barely
    detectable. What are the volume of sample and TON respectively?
    1.   87 and 1.77
    2.   113 and 1.77
    3.   113 and 2.3
    4.   87 and 2.3
13. JTU (Jackson Turbidity Unit) is based on ________ principle and FTU is based on
    ________ principle.
    1.   absorbing, scattering
    2.   scattering, absorbing
    3.   scattering, scattering
    4.   absorbing, absorbing
14. What are the daily flow capacity (m3/day) and the transmissivity (m2/day) of a sand
    stone aquifer if:
    The aquifer height is 15 m
    The aquifer width is 800 m
    The aquifer length is 2 km
    The head change over the length of 2 km is 3 m
    Hydraulic conductivity is 6 × 10–7 m/s.
    1.   0.84 and 0.78
    2.   . 0.88 and 0.68
    3.   0.94 and 0.78
    4.   0.94 and 0.68
15. . The presence of gas in water is indicated by:
    1.   Fizzing sound
    2.   Foam
    3.   Bubbles
    4.   Colour change
16. When some chemical is mixed with water, _________ is formed?
    1.   Floc
    2.   Solution
    3.   Bubbles
    4.   Foam
17. What are the main constituents of the environmental cycles?
    1.   Water cycle and food cycle
    2.   Water cycle and nutrient cycle
    3.   Nutrient cycle
    4.   Water cycle and air cycle
18. Failures within hydrosphere in oxygen cycle can result in the development of:
    1.   Hyperoxic zones
    2.   Hypoxic zones
    3.   Hydrolic zones
    4.   Hydroxic zones
19. Which of the below leads to
    disturbance of nitrogen fixation in the soil?
    1.   Urban waste
    2.   Industrial effluents
    3.   Pesticides
    4.   Fertilizers
20. Hydrogen Peroxide is generated from:?
    1.   Photochemical smog products
    2.   Automobile exhausts
    3.   Explosive manufacturing industry
    4.   Thermal power plants