Recent activity in Transportation Infrastructure / GO Civil

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1

GATE2014-1-51
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 $g=9.81 \: m/s^2$), is _____ seconds.

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 (a...

Chandanachandu

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Chandanachandu recategorized May 29, 2021

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2

GATE2014-2-24
A road is being designed for a speed of $110$ km/hr on a horizontal curve with a super elevation of $8 \%$. If the coefficient of side friction is $0.10$, the minimum radius of the curve (in m) required for safe vehicular movement is $115.0$ $152.3$ $264.3$ $528.5$

A road is being designed for a speed of $110$ km/hr on a horizontal curve with a super elevation of $8 \%$. If the coefficient of side friction is $0.10$, the minimum rad...

Chandanachandu

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Chandanachandu recategorized May 29, 2021

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3

GATE Civil 2013 | Question: 24
For two major roads with divided carriageway crossing at right angle, a full clover leaf interchange with four indirect ramps is provided. Following statements are made on turning movement of vehicles to all directions from both roads. Identify the ... left is not possible, but diverging to left is possible Neither merging from left nor diverging to left is possible

For two major roads with divided carriageway crossing at right angle, a full clover leaf interchange with four indirect ramps is provided. Following statements are made o...

Chandanachandu

100 points

Chandanachandu recategorized May 29, 2021

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4

GATE Civil 2012 | Question: 45
The following data are related to a horizontal curved portion of a two-lane highway: length of curve $200$ m, radius of curve $=300$ m and with of pavement $=7.5$ m. In order to provide a stopping sight distance (SSD) of $80$ m, the set back distance (in m) required from the centre line of the inner lane of the pavement is $2.54$ $4.55$ $7.10$ $7.96$

The following data are related to a horizontal curved portion of a two-lane highway: length of curve $200$ m, radius of curve $=300$ m and with of pavement $=7.5$ m. In o...

Chandanachandu

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Chandanachandu recategorized May 29, 2021

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5

GATE Civil 2012 | Question: 24
Road roughness is measured using Benkelman beam Bump integrator Dynamic cone penetrometer Falling weight deflectometer

Road roughness is measured usingBenkelman beamBump integratorDynamic cone penetrometerFalling weight deflectometer

Chandanachandu

100 points

Chandanachandu recategorized May 29, 2021

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6

GATE2016-1-53
A two lane, one-way road with radius of $50$ m is predominantly carrying lorries with wheelbase of $5$ m. The speed of lorries is restricted to be between $60$ kmph and $80$ kmph. The mechanical widening and psychological widening required at $60$ kmph are designated as $w_{me,60}$ and $w_{ps,60}$, ... $1.19 \:m, 0.50 \:m, 0.89 \:m, \text{ and } 0.50 \:m$

A two lane, one-way road with radius of $50$ m is predominantly carrying lorries with wheelbase of $5$ m. The speed of lorries is restricted to be between $60$ kmph and $...

Chandanachandu

100 points

Chandanachandu recategorized May 27, 2021

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7

GATE2017 CE-2-37
For the construction of a highway, a cut is to be made as shown in the figure. The soil exhibits $c'=20$ kPa, $\phi'=18^{\circ}$, and the undrained shear strength $=80$ kPa. The unit weight of water is $9.81 kN/m^3$. The unit weights of the soil above and below the ground water ... conditions, respectively, would be $1.6$ and $0.9$ $0.9$ and $1.6$ $0.6$ and $1.2$ $1.2$ and $0.6$

For the construction of a highway, a cut is to be made as shown in the figure.The soil exhibits $c’=20$ kPa, $\phi’=18^{\circ}$, and the undrained shear strength $=80...

Chandanachandu

100 points

Chandanachandu recategorized May 25, 2021

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8

GATE2017 CE-1: 16
A super-elevation $e$ is provided on a circular horizontal curve such that a vehicle can be stopped on the curve without sliding. Assuming a design speed $v$ and maximum coefficient of side friction $f_{max}$, which one of the following criteria should be satisfied? $e \leq f_{max}$ $e > f_{max}$ no limit on $e$ can be set $e = \dfrac{1-(f_{max})^2}{f_{max}}$

A super-elevation $e$ is provided on a circular horizontal curve such that a vehicle can be stopped on the curve without sliding. Assuming a design speed $v$ and maximum ...

Chandanachandu

100 points

Chandanachandu recategorized May 25, 2021

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9

GATE2018 CE-1: 15
The speed-density relationship for a road section is shown in the figure. The shape of the flow-density relationship is piecewise linear parabolic initially linear than parabolic initially parabolic than linear

The speed-density relationship for a road section is shown in the figure.The shape of the flow-density relationship ispiecewise linearparabolicinitially linear than parab...

Chandanachandu

100 points

Chandanachandu recategorized May 22, 2021

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10

GATE2019 CE-2: 23
A vehicle is moving on a road of grade $+4 \%$ at a speed of $20 \: m/s$. Consider the coefficient of rolling friction as $0.46$ and acceleration due to gravity as $10 \: m/s^2$. On applying brakes to reach a speed of $10 \: m/s$, the required braking distance (in m, round off to nearest integer) along the horizontal, is ______

A vehicle is moving on a road of grade $+4 \%$ at a speed of $20 \: m/s$. Consider the coefficient of rolling friction as $0.46$ and acceleration due to gravity as $10 \:...

Chandanachandu

100 points

Chandanachandu retagged May 18, 2021

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11

GATE2019 CE-1: 11
The coefficient of average rolling friction of a road road is $f_r$ and its grade is $+G\%$. If the grade of this road is doubled, what will be the percentage change in the braking distance (for the design vehicle to come to a stop) measured along the horizontal (assume all other parameters ... $\dfrac{0.02 \: G}{f_r+0.01 \:G} \times 100 \\$ $\dfrac{2f_r}{f_r+0.01 \:G} \times 100$

The coefficient of average rolling friction of a road road is $f_r$ and its grade is $+G\%$. If the grade of this road is doubled, what will be the percentage change in t...

Chandanachandu

100 points

Chandanachandu recategorized May 17, 2021

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12

GATE2020 CE-2-33
For the hottest month of the year at the proposed airport site, the monthly mean of the average daily temperature is $39^{\circ}C$. The monthly mean of the maximum daily temperature is $48^{\circ}C$ for the same month of the year. From the given information, the calculated Airport Reference Temperature $\text{(in}\: ^{\circ}C),$ is $36$ $39$ $42$ $48$

For the hottest month of the year at the proposed airport site, the monthly mean of the average daily temperature is $39^{\circ}C$. The monthly mean of the maximum daily ...

Chandanachandu

100 points

Chandanachandu edited May 14, 2021

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13

GATE2020 CE-2-45
The design speed of a two-lane two-way road is $60\: km/h$ and the longitudinal coefficient of friction is $0.36$. The reaction time of a driver is $2.5$ seconds. Consider acceleration due to gravity as $9.8 m/s^2$. The intermediate sight distance (in $m,$ round off to the nearest integer) required for the road is ________.

The design speed of a two-lane two-way road is $60\: km/h$ and the longitudinal coefficient of friction is $0.36$. The reaction time of a driver is $2.5$ seconds. Conside...

Chandanachandu

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Chandanachandu recategorized May 10, 2021

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14

GATE2020-CE-1-33
The appropriate design length of a clearway is calculated on the basis of ‘Normal Take-off’ condition. Which one of the following options correctly depicts the length of the clearway? (Note: None of the options are drawn to scale)

The appropriate design length of a clearway is calculated on the basis of ‘Normal Take-off’ condition. Which one of the following options correctly depicts the length...

Chandanachandu

100 points

Chandanachandu recategorized May 8, 2021

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15

GATE Civil 2021 Set 2 | Question: 54
The stopping sight distance $\text{(SSD)}$ for a level highway is $\text{140 m}$ for the design speed of $\text{90 km/h}$. The acceleration due to gravity and deceleration rate are $\text{9.81 m/s$^{2}$}$ and $\text{3. ... /reaction time (in $\text{s}, \textit{round off to two decimal places}$) used in the $\text{SSD}$ calculation is ________________________

The stopping sight distance $\text{(SSD)}$ for a level highway is $\text{140 m}$ for the design speed of $\text{90 km/h}$. The acceleration due to gravity and deceleratio...

Chandanachandu

100 points

Chandanachandu recategorized Apr 25, 2021

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16

GATE Civil 2021 Set 2 | Question: 55
For a $2^{\circ}$ curve on a high speed Broad Gauge $\text{(BG)}$ rail section, the maximum sanctioned speed is $\text{100 km/h}$ and the equilibrium speed is $\text{80 km/h}$. Consider dynamic gauge of $\text{BG}$ ... $\text{30.5 m}$ arc. The cant deficiency for the curve (in $\text{mm}, \textit{round off to integer}$) is ________________________

For a $2^{\circ}$ curve on a high speed Broad Gauge $\text{(BG)}$ rail section, the maximum sanctioned speed is $\text{100 km/h}$ and the equilibrium speed is $\text{80 k...

Chandanachandu

100 points

Chandanachandu recategorized Apr 25, 2021

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17

GATE Civil 2021 Set 1 | Question: 54
The longitudinal section of a runway provides the following data: $\begin{array}{|lc|cI|}\hline &\textbf{End-to-end runway $\textbf{(m)}$} & \textbf{Gradient $ ... $\%$, $\textit{round off to two decimal places}$) is ________________

The longitudinal section of a runway provides the following data:$$\begin{array}{|lc|cI|}\hline&\textbf{End-to-end runway $\textbf{(m)}$} & \textbf{Gradient $(\%)$} \\ \...

Chandanachandu

100 points

Chandanachandu recategorized Apr 23, 2021

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18

GATE Civil 2021 Set 1 | Question: 15
A highway designed for $\text{80 km/h}$ speed has a horizontal curve section with radius $\text{250 m}$. If the design lateral friction is assumed to develop fully, the required super elevation is $0.02$ $0.05$ $0.07$ $0.09$

A highway designed for $\text{80 km/h}$ speed has a horizontal curve section with radius $\text{250 m}$. If the design lateral friction is assumed to develop fully, the r...

Chandanachandu

100 points

Chandanachandu recategorized Apr 21, 2021

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19

GATE Civil 2021 Set 1 | Question: 14
The shape of the most commonly designed highway vertical curve is circular (single radius) circular (multiple radii) parabolic spiral

The shape of the most commonly designed highway vertical curve iscircular (single radius)circular (multiple radii)parabolicspiral

Chandanachandu

100 points

Chandanachandu recategorized Apr 21, 2021

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20

GATE2019 CE-2: 45
A broad gauge railway line passes through a horizontal curved section (radius $=875 \:m$) of length $200 \: m$. The allowable speed on this portion is $100 \: km/h$. For calculating the cant, consider the gauge as centre-to-centre distance between ... (in $mm$, round off to $1$ decimal place) with respect to the centre-to-centre distance between the rail heads is _____________

A broad gauge railway line passes through a horizontal curved section (radius $=875 \:m$) of length $200 \: m$. The allowable speed on this portion is $100 \: km/h$. For ...

soujanyareddy13

100 points

soujanyareddy13 recategorized Nov 18, 2020

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21

GATE2017 CE-2-11
For a broad gauge railway track on a horizontal curve of radius $R$ (in m), the equilibrium cant $e$ required for a train moving at a speed of $V$ (in km per hour) is $e= 1.676 \dfrac{V^2}{R} \\$ $e= 1.315 \dfrac{V^2}{R} \\$ $e= 0.80 \dfrac{V^2}{R} \\$ $e= 0.60 \dfrac{V^2}{R}$

For a broad gauge railway track on a horizontal curve of radius $R$ (in m), the equilibrium cant $e$ required for a train moving at a speed of $V$ (in km per hour) is$e= ...

soujanyareddy13

100 points

soujanyareddy13 recategorized Nov 18, 2020

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22

GATE2017 CE-2-54
The radii of relative stiffness of the rigid pavements P and Q are denoted by $l_P$ and $l_Q$, respectively. The geometric and material properties of the concrete slab and underlying soil are given below: The ratio (up to one decimal place) of $l_P/l_Q$ is _______

The radii of relative stiffness of the rigid pavements P and Q are denoted by $l_P$ and $l_Q$, respectively. The geometric and material properties of the concrete slab an...

soujanyareddy13

100 points

soujanyareddy13 recategorized Nov 18, 2020

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23

GATE2017 CE-1: 17
A runway is being constructed in a new airport as per the International Civil Aviation Organization (ICAO) recommendations. The elevation and the airport reference temperature of this airport are $535 \: m$ above the mean sea level and $22.65^{\circ}C$, respectively. Consider the ... length of runway corrected for the temperature is $2223 \: m$ $2250 \: m$ $2500 \: m$ $2750 \: m$

A runway is being constructed in a new airport as per the International Civil Aviation Organization (ICAO) recommendations. The elevation and the airport reference temper...

soujanyareddy13

100 points

soujanyareddy13 recategorized Nov 18, 2020

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24

GATE2017 CE-1: 18
The accuracy of an Electronic Distance Measuring Instrument (EDMI) is specified as $\pm (a \: mm + b \: ppm)$. Which one of the following statements is correct? Both $a$ and $b$ remain constant, irrespective of the distance being measured $a$ ... proportion to the distance being measured and $b$ remains constant Both $a$ and $b$ vary in proportion to the distance being measured

The accuracy of an Electronic Distance Measuring Instrument (EDMI) is specified as $\pm (a \: mm + b \: ppm)$. Which one of the following statements is correct?Both $a$ a...

soujanyareddy13

100 points

soujanyareddy13 recategorized Nov 18, 2020