syllabus as per gate 2019 - mvs academymvsacademy.in/wp-content/uploads/2018/10/book-9.pdfsyllabus...

MVS ACADEMY CIVIL ENGINEERING GATE – 2019

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Syllabus as per GATE – 2019

Transportation Infrastructure:

83. Highway alignment and engineering surveys;

84. Geometric design of highways - cross-sectional elements, sight distances, horizontal

and vertical alignments;

85. Geometric design of railway track;

86. Airport runway length, taxiway and exit taxiway design.

Highway Pavements:

87. Highway materials - desirable properties and quality control tests; Design of bituminous

paving mixes;

88. Design factors for flexible and rigid pavements;

89. Design of flexible pavement using IRC: 37-2012; Design of rigid pavements using

IRC: 58-2011; Distresses in concrete pavements.

Traffic Engineering:

90. Traffic studies on flow, speed, travel time - delay and O-D study, PCU, peak hour

factor, parking study, accident study and analysis, statistical analysis of traffic data;

91. Microscopic and macroscopic parameters of traffic flow, fundamental relationships;

92. Control devices, signal design by Webster’s method;

93. Types of intersections and channelization; Highway capacity and level of service of

rural highways and urban roads.


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Few Typical Questions with Solutions given module wise list for reference:

MODULE – 83

1) Nagpur road plan formula were prepared by assuming

A) rectangular or block road pattern

B) radial or star and block road pattern

C) radial or star and circular road pattern

D) radial or star and grid road pattern

Ans: D

2) The sequence of four stages of survey in a highway alignment is

A) reconnaissance, map study, preliminary survey and detailed survey

B) map study, preliminary survey, recon-naissance and detailed survey

C) map study, reconnaissance, preliminary survey and detailed survey

D) preliminary survey, map study, recon-naissance and detailed survey

Ans: C

3) Select the correct statement.

A) Nagpur road plan formulae take into account the towns with very large

population.

B) Nagpur road plan has a target road length of 32 km per 100 square km.

C) Second 20-year plan has provided 1600 km of expressways out of the proposed

National highway.

D) Second 20-year plan allowed deduction of length of railway track in the area

while calculating the length of roads.

Ans: C

Explanation:

Nagpur road plan has a target road length of 16 km per 100 square km.


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4) The Star and Grid pattern of road network was adopted in

A) Nagpur Road Plan

B) Luck now Road Plan

C) Bombay Road Plan

D) Delhi Road Plan

Ans: A

MODULE - 84

5) In an area of heavy rainfall, a state Highway of high-type bituminous surface with

four lanes (14.0 m wide) is to be constructed. What will be the height of the crown of

the road relative to the edges for a composite camber? (i.e. middle half as parabola

and the rest as straight line)

A) 14 cm B) 21 cm C) 28 cm D) 7 cm

Ans: A

Solution:

In heavy rainfall area on high type bitumen surface camber is 1 in 50

6) A sign is required to be put up asking drivers to slow down to 30 km/h before entering

Zone Y (see figure). On this road, vehicles require 174 m to slow down to 30 km/h

(the distance of 174 m includes the distance travelled during the perception-reaction

time of drivers). The sign can be read by 6/6 vision drivers from a distance of 48 m.

The sign is placed at a distance of x m from the start of Zone Y so that even a 6/9

vision driver can slow down to 30 km/h before entering the zone. The minimum value

of x is _______________ m.


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Ans: 142

Solution:

The value of for 6/6 vision driver

The value of for 6/9 vision driver

7) What is the value of the resultant retardation in when a longitudinal friction

coefficient of 0.4 is allowed for stopping the vehicle on road?

A) 0.98 B) 1.95 C) 2.93 D) 3.93

Ans: D

Solution:

8) The perception-reaction time for a vehicle travelling at 90 km/h, given the coefficient

of longitudinal friction of 0.35 and the stopping sight distance of 170 m (assume

is _______ seconds.

Ans: 3.15

Solution:

(

)

9) Width of carriage way for a single lane is recommended to

A) 7.5 B) 7.0 C) 3.75 D) 5.5


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Ans: C

10) The design speed on a road is 60 kmph.Assuming the driver reaction time of 2.5

seconds and coefficient of friction of pavement surface as 0.35, the required stopping

distance for two-way traffic on a single lane road is

A) 82.1 m B) 102.4 m C) 164.2 m D) 186.4 m

Ans: C

Solution:

82.1m

As traffic is two in single lane, SSD required is twice of the above value.

2 82.1 164.2 m

11) Overtaking and overtaken vehicles are at 70 and 40 kmph respectively.

Find (i) OSD (ii) desirable length of overtaking zone. Given

A) 191.4,1080 B) 191.4,980 C) 278,834 D) 182.8,1260

Ans: C

Solution:

√

√

( =110.46m

12) The rate of super-elevation for a horizontal curve of radius 500 m in a national

highway for a design speed of 100 kmph is:

A) 0.04 B) 0.063 C) 0.07 D) 0.70


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Ans: C

Solution:

(

)

Limiting elevation is 0.07

13) A valley curve has a descending gradient of 1 in 40 followed by an ascending gradient

of 1 in 50. The length of the valley curve required for a design speed of 80 km/hour

for comfort condition is

A) 199 m B) 116 m C) 58 m D) 37 m

Ans: C

Solution:

(

)

(

)

14) A descending gradient of 4% meets an ascending gradient of 1 in 40 where a valley

curve of length 200 m is to be formed. What will be the distance of the lowest point

on the valley curve from its first tangent point?

A) 100 m B) 111 m C) 125 m D) 118 m

Ans: B

Solution:


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(

)

√

√

MODULE – 85

15) If the ruling gradient is 1 in 150 on a particular section of B.G. and at the same time a

curve of 4 degree is situated on this ruling gradient, what should be the allowable

ruling gradient? (up to 3 decimal points accuracy)

Ans: 0.0051

Solution:

Compensation for 4 degrees =

Actual gradient

Compensated gradient

16) If the curve lead of a broad gauge railway turnout is 16.76 m, the angle of crossing of

the turnout will be given by

A)

B)

C)

D)

Ans: D

17) Grade compensation on curves in Indian Railways for BG is

A) 0.40% per degree of curve

B) 0.06% per degree of curve


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C) 0.04% per degree of curve

D) 0.02% per degree of curve

Ans: C

18) The distance between the running faces of the stock- rail and gauge face of tongue rail

measured at the heel of the switch is known as

A) Flange way clearance

B) Throw of switch

C) Heel divergence

D) Flare

Ans: C

19) Which one of the following is the correct expression for the versine (h) of a curve?

A) h

B) h

C) h

D) h

Ans: C

MODULE – 86

20) The airport site has an elevation of 270 m. The length of runway under standard

condition is 1620 m. Find the corrected runway length after applying correction for

elevation?

Ans: 1722

Solution:

Correction for elevation

Corrected runway length =

21) Monthly mean of average daily temperature of hottest month is 30 and airport

reference temperature is 35 . Find monthly mean of maximum daily temperature of

hottest month considered?

A) 250 B) 450 C) 550 D) 760

Ans: 45


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Solution:

Airport reference temperature –

–

22) Monthly mean of average daily temperature of hottest month is 26 and monthly

mean of maximum daily temprature of hottest month is 32 . If the basic runway

length is 2000 m and its elevation is 300 m. find the corrected runway length?

Ans: 2460

Solution:

Correction for elevation

Corrected runway length =

23) What shall be the radius of an exit taxiway with design exit speed of 90 kmph and

coefficient of friction 0.13?

A) 550 m B) 500 m C) 475 m D) 449 m

Ans: B

Solution:

MODULE – 87

24) The following observations are made while testing aggregate for its suitability in

pavement construction:

(i) Mass of oven-dry aggregate in air = 1000g

(ii) Mass of saturated surface-dry aggregate in air = 1025g

(iii) Mass of saturated surface-dry aggregate under water = 625 g

Based on the above observations, the correct statement is

A) bulk specific gravity of aggregate = 2.5 and water absorption = 2.5%

B) bulk specific gravity of aggregate = 2.5 and water absorption = 2.4%

C) apparent specific gravity of aggregate = 2.5 and water absorption = 2.5%

D) apparent specific gravity of aggregate = 2.5 and water absorption = 2.4%


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Ans: A

Solution:

Apparent specific gravity

Bulk specific gravity

Water absorption

25) During a forensic investigation of pavement failure, an engineer reconstructed the

graphs P, Q, R and S, using partial and damaged old reports.

Theoretically plausible correct graphs according to the 'Marshall Mixture design

output' are

A) P, Q, R B) P, Q, S C) Q, R, S D) R, S, P

Ans: B

Explanation:

Voids filled with bitumen increases with bitumen content

26) In Marshall Method of mix design, the coarse aggregate, fine aggregate, fines and

bitumen having respective values of specific gravity 2.60, 2.70, 2.65 and 1.01, are

mixed in the relative proportions (% by weight) of 55.0, 35.8, 3.7 and 5.5

respectively. The theoretical specific gravity of the mix and the effective specific

gravity of the aggregates in the mix respectively are:


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A) 2.42 and 2.63 B) 2.42 and 2.78 C) 2.42 and 2.93 D) 2.64 and 2.78

Ans: A

Solution:

27) Match the information related to tests on aggregates given in Group-I with that in

Group-II.

Group-I Group-II

P. Resistance to impact 1. Hardness

Q. Resistance to wear 2. Strength

R. Resistance to weathering action 3. Toughness

S. Resistance to crushing 4. Soundness

A) P-1, Q-3, R-4, S-2

B) P-3, Q-1, R-4, S-2

C) P-4, Q-1, R-3, S-2

D) P-3, Q-4, R-2, S-1

Ans: B

28) Bitumen is derived from

A) Destructive distillation of coal tar

B) Destructive distillation of petroleum

C) Fractional distillation of petroleum

D) Naturally occurring ores

Ans: C

29) The consistency and flow resistance of bitumen can be determined from the following

A) Ductility test


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B) Penetration test

C) Softening point test

D) Viscosity test

Ans: D

MODULE – 88

30) The minimum value of CBR(%) required for granular sub-base as per Ministry of

Surface Transport (MOST) specification is

A) 5 B) 10 C) 15 D) 20

Ans: D

31) In the context of flexible pavement design, the ratio of contact pressure to tyre

pressure is called the Rigidity Factor. This factor is less than unity when the tyre

pressure is

A) Less than 0.56 N/mm2

B) Equal to 0.56 N/mm2

C) Equal to 0.7 N/mm2

D) More than 0.7 M/mm2

Ans: D

MODULE – 89

32) The radii of relative stiffness of the rigid pavement P and Q are denoted by and

respectively. The geometric and material properties of the concrete slab and

underlying soil are given below.

The ratio (up to one decimal place) of is _____.


Page 13

Ans: 2

Solution:

(

( )

(

)

33) It is proposed to widen and strengthen an existing 2-lane NH section as a divided

highway. The existing traffic in one direction is 2500 commercial vehicles (CV) per

day. The construction will take 1 year. The design CBR of soil subgrade is found to

be 4 percent. Given: traffic growth rate for CV = 8 percent, vehicle damage factor =

3.5 (standard axles per CV), design life = 10 years and traffic distribution factor =

0.75. The cumulative standard axles (MSA) computed are

A) 35 B) 37 C) 65 D) 70

Ans: B

Solution:

= 365A[( ]

VDF LDF

A = 2500 1.08 = 2700

= 365 2700 *(

+ 3.5 0.75 = 37 Msa

34) The radius of relatives stiffness for a 20 cm thick slab with E 3 × kg/ and

poisson’s ratio 0.15, resting on a subgrade having modulus of 5 kg/ is

A) 10 cm B) 80 cm C) 120 cm D) 320 cm

Ans: B

Solution:

*

( +

*

( +


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35) Select the strength parameter of concrete used in design of plain jointed cement

concrete pavements from the following choices:

A) Tensile strength

B) Compressive strength

C) Flexural strength

D) Shear strength

Ans: B

36) Base course is used in Rigid pavements for

A) Prevention of sub grade settlement

B) Prevention of slab cracking

C) Prevention of pumping

D) Prevention thermal expansion

Ans: C

MODULE – 90

37) In a one-lane one-way homogeneous traffic stream, the observed average headway is

3.0 s. The flow (expressed in vehicles/hr) in this traffic stream is________

Ans: 1200

Solution:

38) The minimum value of 15 minute peak hour factor on a section of a road is

A) 0.10 B) 0.20 C) 0.25 D) 0.33

Ans: C

Solution:


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39) The speed and delay studies on a defined section of highway are conducted by

A) Radar gun C) Traffic counters

B) Moving car method D) Enoscope

Ans: B

40) A traffic stream in a particular direction of a two lane road is moving with a constant

speed of 50 kmph, with an average headway of 2.52 seconds. The longitudinal

distance between two consecutive vehicles is

A) 30 m B) 35 m C) 38 m D) 42 m

Ans: B

Solution:

2.52 = 35m

41) The road geometrics in India are designed for the

A) 98th highest hourly traffic volume

B) 85th highest hourly traffic volume

C) 50th highest hourly traffic volume

D) 30th highest hourly traffic volume

Ans: A

MODULE – 91

42) While traveling along and against the traffic stream, a moving observer measured the

relative flows as 50 vehicles/hr and 200 vehicles/hr, respectively. The average speeds

of the moving observer while traveling along and against the stream are 20 km/hr and

30 km/hr, respectively. The density of the traffic stream (expressed in vehicles/km) is

Ans: 3

Solution:


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Solving

43) On a section of a highway the speed-density relationship is linear and is given by

(

; where is in km/h and is in veh/km. The capacity (in veh/h) of this

section of the highway would be

A) 1200 B) 2400 C) 4800 D) 9600

Ans: B

Solution:

44) A linear relationship is observed between speed and density on a certain section of a

highway. The free flow speed is observed to be 80 km per hour and the jam density is

estimated as 100 vehicles per km length. Based on the above relationship, the

maximum flow expected on this section and the speed at the maximum flow will

respectively be

A) 8000 vehicles per hour and 80 km per hour

B) 8000 vehicles per hour and 25 km per hour

C) 2000 vehicles per hour and 80 km per hour

D) 2000 vehicles per hour and 40 km per hour

Ans: D

Solution:

=

=

= 2000

=

=

= 40


Page 17

MODULE – 92

45) The critical flow ratios for a three-phase signal are found to be 0.30, 0.25, and 0.25.

The total time lost in the cycle is 10 s. Pedestrian crossings at this junction are not

significant. The respective Green times (expressed in seconds and rounded off to the

nearest integer) for the three phases are

A) 34, 28, and 28 C) 40, 25, and 25

B) 40, 30, and 30 D) 50, 25, and 25

Ans: A

Solution:

(

(

(

(

46) As per IRC 67- 2001, a traffic sign indicating the Speed Limit on a road should be of

A) Circular Shape with White Background and Red Border

B) Triangular Shape with White Background and Red Border

C) Triangular Shape with Red Background and While Border

D) Circular Shape with Red Background and White Border

Ans: A

47) Find the critical lane volume for phase given below?

Ans: 700


Page 18

Solution:

(

)

MODULE – 93

48) If a two-lane national highway and a two-lane state highway intersect at right angles, the number of potential conflict points at the intersection, assuming that both the

roads are two-way is

A) 11 B) 17 C) 24 D) 32

Ans: C

Explanation:

49) A roundabout is provided with an average entry width of 8.4 m, width of weaving section as 14 m, and length of the weaving section between channelizing islands as 35

m. The crossing traffic and total traffic on the weaving section are 1000 and 2000

PCU per hour respectively. The nearest rounded capacity of the roundabout (in PCU

per hour is)

A) 3300 B) 3700 C) 4500 D) 5200

Ans: B

Solution:

L = 35m

e = 8.4


Page 19

(

)(

)

(

0.5

(

)(

= 3733

50) Design parameters for a signalized intersection are shown in the figure below. The

green time calculated for major and minor roads are 34 and 18s respectively. The

critical lane volume on the major road changes to 440 vehicles per hour per lane and

the critical lane volume on the minor road remain unchanged. The green time will

A) Increase for the major road and remain same for the minor road.

B) Increase for the major road and decrease for the minor road.

C) Decrease for both the roads.

D) Remain unchanged for both the roads.

Ans: B

Solution:

(

(

)


Page 20

(

(

(

)

(

(

syllabus as per gate 2019 - mvs academymvsacademy.in/wp-content/uploads/2018/10/book-9.pdfsyllabus...

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