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Test: Highway Geometric Design -2 - Civil Engineering (CE) MCQ


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10 Questions MCQ Test GATE Civil Engineering (CE) 2025 Mock Test Series - Test: Highway Geometric Design -2

Test: Highway Geometric Design -2 for Civil Engineering (CE) 2024 is part of GATE Civil Engineering (CE) 2025 Mock Test Series preparation. The Test: Highway Geometric Design -2 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Highway Geometric Design -2 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Highway Geometric Design -2 below.
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Test: Highway Geometric Design -2 - Question 1

The mechanical extra widening required for 10.5 m wide pavement on a horizontal curve of radius R metre is given by 

where l is the length of wheel base of vehicle in metres.

Detailed Solution for Test: Highway Geometric Design -2 - Question 1

Mechanical widening 
where, n = no. of lanes
For 10.5 m wide pavement,
n=3

Test: Highway Geometric Design -2 - Question 2

The reaction time for calculation of stopping distance may be assumed as

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Test: Highway Geometric Design -2 - Question 3

The maximum design gradient for vertical profile of a road is

Detailed Solution for Test: Highway Geometric Design -2 - Question 3

Ruling gradient is the maximum gradient within, which the designer attempts to design the vertical profile of a road.

Test: Highway Geometric Design -2 - Question 4

On sag (or valley) curves the available sight distance is determined based on

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Test: Highway Geometric Design -2 - Question 5

The maximum; width of a vehicle as recommended by IRC is

Test: Highway Geometric Design -2 - Question 6

Transition curves are provided on the approach to horizontal curves in order to

Test: Highway Geometric Design -2 - Question 7

Transition curve is provided in horizontal alignment

Test: Highway Geometric Design -2 - Question 8

The ideal form of curve for the summit curve is

Detailed Solution for Test: Highway Geometric Design -2 - Question 8

Vertical curve:

Vertical alignment is the elevation of the centerline of the road. It may be in the form of a circular arc or a parabola

The vertical curve is divided into two categories

1) Summit curve:

It is a crest curve with convexity upward.

The deviation angle between the two interacting gradients is equal o the algebraic difference between them.

When an ascending gradient meets with descending gradients the deviation angle will be maximum

N = n1 – (-n2) = n1 + n2

Ideal shape of summit curve is circular. 

But Square parabola is the best shape of the summit curve due to good riding qualities, simplicity of calculation, and uniform rate of change of grade.

2) Valley curve:

The maximum possible deviation angle is obtained when a descending gradient meets with an ascending gradient.

The overtaking sight distance is not included in the valley curve.

The cubic parabola is generally preferred.

The headlight sight distance available at the valley curve should be at least equal to the stopping sight distance.

Test: Highway Geometric Design -2 - Question 9

The off-tracking of a vehicle having a wheel base of 6.0 m and negotiating a curved path of mean radius 25 m is

Detailed Solution for Test: Highway Geometric Design -2 - Question 9

Test: Highway Geometric Design -2 - Question 10

The important factor considered in the design of summit curves on highways is

Detailed Solution for Test: Highway Geometric Design -2 - Question 10

When a fast moving vehicle travels along a summit curve, the centrifugal force will act upwards, against gravity and hence a part of the pressure on the tyres and spring of the vehicle suspensions in relieved. So there is no problem of discomfort to passengers on summit curves, particularly because the deviation angles on roads are quite small. The only problem is designing summit curves is to provide adequate sight distances. The stopping sight distance or the absolute minimum sight distance should invariably be provided at all sections of the road system and so aiso on summit curves.

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