November 3, 2026

Test 2 – Highway Alignment

Question 1 ప్రశ్న 1

A proposed highway can follow either a direct route across flood-prone lowlands or a slightly longer route on stable ground with safer curves and reliable drainage. Which principle should guide selection of an ideal alignment?

A Always choose the geometric shortest line because construction and road-user costs cannot affect route selection. B Choose the line with the fewest bends even if its gradient exceeds feasible design requirements. C Select a reasonably direct, safe, constructible and economical alignment after considering drainage, life-cycle costs and environmental effects. D Select the alignment requiring the maximum earthwork to obtain the greatest construction activity.

Question 2 ప్రశ్న 2

Two feasible routes link the same towns, but the project must provide access to an identified major river-crossing site and a key regional transport interchange. How should these locations be treated in alignment planning?

A Treat them as positive obligatory or control points, subject to verification of their engineering suitability and network function. B Treat them as prohibited areas that an alignment must always bypass regardless of project objectives. C Ignore them during route selection and locate the bridge only after earthwork construction. D Treat them as fixed pavement-layer thickness requirements rather than locations along a route.

Question 3 ప్రశ్న 3

A nearly straight alignment would pass through a notified protected habitat and an unstable landslide scar, whereas a practicable diversion can avoid both. How should these features influence the route choice?

A They must be treated as advantageous positive control points because a highway should intersect every distinct terrain feature. B They may be ignored if the shorter alignment saves at least one kilometre. C They require only a thicker wearing course and have no bearing on alignment selection. D They are adverse or negative control features that should be avoided where practicable, with statutory and geotechnical requirements assessed.

Question 4 ప్రశ్న 4

A proposed highway crosses a major river where a bridge longer than 300 m is expected. Under the route-selection guidance of IRC:SP:19-2020, what should generally receive primary consideration?

A The shortest possible road line, regardless of foundation, waterway and scour conditions. B The bridge site and its hydraulic and structural suitability, while coordinating safe geometric approaches to that site. C An alignment exactly parallel to the river at the crossing, regardless of the required bridge span. D A mandatory right-angle crossing at any location, without studying bank stability or flood behaviour.

Question 5 ప్రశ్న 5

Two alternative centre lines cross a small stream requiring a structure shorter than 60 m. Under IRC:SP:19-2020, which relationship generally governs the initial choice, while still requiring adequate hydraulic design?

A The stream must always force a major realignment even if a short culvert can safely accommodate it. B Bridge siting always governs the entire highway irrespective of the crossing length. C The selected highway alignment normally guides the location of the small bridge or cross-drainage structure. D A crossing may omit hydraulic capacity checks if its length is below 60 m.

Question 6 ప్రశ్న 6

A river can be crossed at Site P on a relatively straight, stable reach with a near-normal approach to flow, or at Site Q on the outside of an actively eroding meander despite a slightly shorter road. Which preliminary selection is better justified?

A Prefer Site P for further hydraulic and foundation investigation, while checking approach geometry and environmental effects. B Select Site Q solely because its road centre line is shorter, irrespective of bank erosion. C Select either site from its surface road width alone because river morphology does not influence bridges. D Select Site Q because maximum skew and active bank erosion automatically reduce scour risk.

Question 7 ప్రశ్న 7

The bridge location preferred by the hydraulic team would require a sharp reverse curve immediately beyond an abutment under the preliminary road design. What is the best next engineering action?

A Approve the bridge as drawn and defer all approach sight-distance checks until opening to traffic. B Use pavement markings alone to remove the geometric consequences of the reverse curve. C Cancel the highway project without assessing other bridge and approach alternatives. D Jointly refine bridge siting and approach alignment to satisfy hydraulic, geometric, safety and total-cost requirements.

Question 8 ప్రశ్న 8

A hill-road option climbs almost directly up a steep slope, while another follows the hillside contour to keep the gradient manageable at the cost of additional route length. Assuming the hillside route is geologically stable, which alignment principle favours it?

A The shortest plan distance must always prevail even if the proposed gradient is unserviceable. B A contour-following alignment can limit gradient and excessive earthwork, provided its curves, drainage and slope stability are satisfactory. C Hill roads must always be aligned perpendicular to every contour for the entire length. D Contour alignment eliminates the need for cross-drainage structures and slope protection.

Question 9 ప్రశ్న 9

Reconnaissance identifies Route A across a known active landslide belt and Route B on a geologically stable ridge, with comparable traffic service and feasible road geometry. Which finding should carry greatest weight at this stage?

A The landslide susceptibility and expected stabilization, disruption and maintenance risks support detailed evaluation of Route B. B The landslide risk may be ignored once the pavement surface is specified as concrete. C Route A must be chosen solely because its ground elevations vary more rapidly. D Both alignments have identical geotechnical risk because they connect the same terminals.

Question 10 ప్రశ్న 10

A hill alignment needs a hairpin bend to gain elevation. Two possible bend locations have similar route length, but one has adequate space for widening, visibility and drainage and the other lies on a narrow unstable spur. Which choice is stronger?

A Choose the narrow spur because a smaller available radius guarantees lower earthwork and safer operation. B Avoid examining hairpin geometry because the highway centre line is fixed during map study. C Prefer the site allowing safe turning geometry, sight distance, slope treatment and drainage after detailed investigation. D Locate the bend exactly at the steepest slope to minimize the need for retaining works.

Question 11 ప్రశ్న 11

The shortest alignment across a plain passes through a marsh with low subgrade strength and poor natural drainage. A nearby route on higher ground is slightly longer. Which consideration most strongly favours investigating the higher-ground route?

A Wet ground always improves pavement strength by increasing moisture content. B Weak saturated ground can lead to expensive ground improvement, settlement and drainage works over the road's life. C A marsh crossing eliminates the need for culverts because standing water has no flow. D The ground-water table affects construction only, never subsequent pavement service.

Question 12 ప్రశ్న 12

A highway corridor must cross a broad seasonal floodplain. One proposal blocks several natural drainage channels with a continuous embankment, while another includes suitably located waterway openings and flood-resilient formation levels. Which proposal is the sounder basis for design?

A The solid embankment because restricting floodwater always increases upstream drainage efficiency. B The solid embankment because the number of waterways is unrelated to flood afflux or erosion. C Either proposal without hydrological investigation because the road is normally dry in summer. D The option maintaining adequate cross-drainage and flood passage, subject to hydraulic, erosion and embankment design checks.

Question 13 ప్రశ్న 13

One corridor crosses deep expansive clay and requires major subgrade treatment, while another has well-drained competent soil and similar geometric and traffic functions. What is the most appropriate alignment-selection approach?

A Compare geotechnical treatment, earthwork, drainage and maintenance costs before preferring the apparently shorter corridor. B Assume expansive soil has no engineering effect once a wearing course is constructed. C Choose the expansive-soil corridor because maximum seasonal heave improves riding comfort. D Ignore the subsurface conditions until after the final centre line is legally acquired.

Question 14 ప్రశ్న 14

An existing road through a market town has severe congestion and many pedestrian conflicts. A proposed bypass would divert through traffic while maintaining well-designed connections for the town's essential trips. Which factor best supports consideration of the bypass?

A All vehicles should be diverted permanently even when their destination is inside the town. B The bypass should be rejected because traffic demand never affects highway alignment. C Origin-destination patterns, safety, through-traffic travel time and retained local accessibility should be assessed together. D The preferred bypass is necessarily the one farthest from every existing road, regardless of cost or ecological effects.

Question 15 ప్రశ్న 15

Two alignment alternatives have similar length, but Route P contains a sharp curve immediately after a crest that restricts stopping sight distance. Route Q avoids this combination with feasible earthwork. Which engineering judgement is strongest?

A Select Route P because a crest curve automatically increases forward visibility around the bend. B Prefer evaluating Route Q for safer coordinated horizontal and vertical geometry and adequate stopping sight distance. C Assume pavement thickness can compensate for insufficient sight distance. D Ignore curve coordination because safety is determined solely by the number of lanes.

Question 16 ప్రశ్న 16

An alignment crosses the same busy railway twice and intersects a major pipeline, while a comparable diversion avoids one railway crossing but requires an engineered pipeline crossing. Which procedure is most appropriate?

A Choose the twice-crossing route automatically because more conflict points always reduce travel delay. B Ignore railway safety because the project concerns road geometry, not other transport modes. C Select the diversion solely on its satellite-image length and omit utility coordination. D Compare grade-separation needs, railway-interface risk, utility protection or relocation, delay and total project cost before finalizing.

Question 17 ప్రశ్న 17

Two road corridors are geometrically feasible, but one bisects productive farm holdings and displaces more households. The second mainly follows property boundaries with somewhat greater length. Which additional factors should decisively inform their comparison?

A Only the tender price of the pavement layers, excluding land and social costs. B Only the shortest distance, because farm severance never alters access or livelihoods. C Land acquisition, severance of holdings, resettlement, access continuity and full economic and environmental implications. D Only the number of roadside signs needed after construction.

Question 18 ప్రశ్న 18

A shorter alignment would fragment a wildlife movement corridor, while a feasible alternative can avoid much of that habitat at moderate additional cost. What is the most defensible preliminary decision?

A Examine habitat avoidance as a priority, evaluate the alternate route and any necessary mitigation, and apply relevant environmental-clearance requirements. B Always adopt the shorter route because wildlife movement cannot be affected by highway traffic. C Treat painting the pavement green as sufficient proof that habitat connectivity is preserved. D Reject all environmental investigations once the centre line has been marked on a map.

Question 19 ప్రశ్న 19

For a simplified comparison, two feasible highway alignments have the following costs in crore rupees: A has initial construction cost 180, annual maintenance 2 and annual road-user cost 16; B has initial construction cost 230, annual maintenance 1.5 and annual road-user cost 11. Over 20 years, assume no discounting, no salvage and constant annual costs. Which has the lower specified total cost?

A A, with 500 crore compared with B at 530 crore. B B, with 480 crore compared with A at 540 crore, a saving of 60 crore. C A, because its construction cost alone is 50 crore less, regardless of the subsequent costs. D The alternatives are equal because both carry traffic between the same terminal points.

Question 20 ప్రశ్న 20

A proposed 6.0 km hill-road stretch climbs from elevation 450 m to 660 m over a horizontal chainage difference of 6,000 m. Assuming a uniform grade, what are the approximate gradient percentage and the corresponding '1 in N' representation?

A 2.86% and 1 in 35. B 3.50% and 1 in 3.5. C 35.0% and 1 in 28.6. D 3.50% and 1 in 28.6.

Question 21 ప్రశ్న 21

Alignment X is 21 km long but passes through a built-up bottleneck and requires 43 minutes in a representative trip. Alignment Y is 24 km long, avoids the bottleneck and requires 30 minutes with adequate geometric safety. Which conclusion is supported?

A Y is 3 km longer but saves 13 minutes on the stated trip; its overall preference still requires cost, safety and environmental comparison. B X must be preferred because no longer route can reduce travel time. C Y is necessarily cheaper to construct and maintain because it has a lower travel time. D X and Y have identical user costs because they join the same origin and destination.

Question 22 ప్రశ్న 22

For an initial earthwork screening, Route A is 5 km with an estimated average excavation of 12,000 m3/km, and Route B is 6 km with 4,000 m3/km. All excavation is assumed to cost Rs. 500/m3, and other costs are intentionally excluded. Which statement is correct?

A Route A costs Rs. 1.2 crore and Route B costs Rs. 3.0 crore in excavation. B Both routes have equal excavation costs because the longer route has less excavation per kilometre. C Route B's excavation costs Rs. 1.2 crore versus Route A's Rs. 3.0 crore, but this is not enough alone to select the final alignment. D Route B costs Rs. 12 crore because excavation quantity and road length must be multiplied twice.

Question 23 ప్రశ్న 23

A screening exercise assigns weighted scores to feasible alignments after confirming that both satisfy mandatory safety and legal constraints. Weights are safety 50%, environment 30% and cost 20%. Route A scores (80, 70, 60) and Route B scores (70, 80, 90) on those respective criteria, with higher being better. Which result is correct?

A A scores 80 and B scores 90, so B wins by using only the cost criterion. B A scores 73 and B scores 70, so A ranks higher. C The weighted scores cannot be calculated from the information provided. D A scores 73 and B scores 77, so B ranks higher under the given weighting.

Question 24 ప్రశ్న 24

A hill-road route needs to gain 90 m of elevation over a horizontal alignment length of 1.8 km, assuming uniform grade. Which gradient and '1 in N' description are correct?

A 0.5% and 1 in 200. B 5.0% and 1 in 20. C 20% and 1 in 5. D 9.0% and 1 in 18.

Question 25 ప్రశ్న 25

A highway agency is choosing between upgrading an existing road through settlements and constructing a greenfield bypass. The existing route needs utility relocation and property acquisition, while the bypass crosses farmland and a minor wetland. Which decision process is most appropriate?

A Compare geometric and traffic performance, construction and road-user costs, land and utility impacts, environmental mitigation and safety before recommending one alternative. B Select the bypass solely because new roads never require environmental or land permissions. C Select the existing road solely because it has a shorter initial design period, without analysing future traffic. D Reject detailed comparison because alternative alignments between the same terminal points must be equally economical.

Answer Key సమాధానాల పట్టిక

Question 1 ప్రశ్న 1

Answer: C. Select a reasonably direct, safe, constructible and economical alignment after considering drainage, life-cycle costs and environmental effects. సమాధానం: C.
Question 2 ప్రశ్న 2

Answer: A. Treat them as positive obligatory or control points, subject to verification of their engineering suitability and network function. సమాధానం: A.
Question 3 ప్రశ్న 3

Answer: D. They are adverse or negative control features that should be avoided where practicable, with statutory and geotechnical requirements assessed. సమాధానం: D.
Question 4 ప్రశ్న 4

Answer: B. The bridge site and its hydraulic and structural suitability, while coordinating safe geometric approaches to that site. సమాధానం: B.
Question 5 ప్రశ్న 5

Answer: C. The selected highway alignment normally guides the location of the small bridge or cross-drainage structure. సమాధానం: C.
Question 6 ప్రశ్న 6

Answer: A. Prefer Site P for further hydraulic and foundation investigation, while checking approach geometry and environmental effects. సమాధానం: A.
Question 7 ప్రశ్న 7

Answer: D. Jointly refine bridge siting and approach alignment to satisfy hydraulic, geometric, safety and total-cost requirements. సమాధానం: D.
Question 8 ప్రశ్న 8

Answer: B. A contour-following alignment can limit gradient and excessive earthwork, provided its curves, drainage and slope stability are satisfactory. సమాధానం: B.
Question 9 ప్రశ్న 9

Answer: A. The landslide susceptibility and expected stabilization, disruption and maintenance risks support detailed evaluation of Route B. సమాధానం: A.
Question 10 ప్రశ్న 10

Answer: C. Prefer the site allowing safe turning geometry, sight distance, slope treatment and drainage after detailed investigation. సమాధానం: C.
Question 11 ప్రశ్న 11

Answer: B. Weak saturated ground can lead to expensive ground improvement, settlement and drainage works over the road's life. సమాధానం: B.
Question 12 ప్రశ్న 12

Answer: D. The option maintaining adequate cross-drainage and flood passage, subject to hydraulic, erosion and embankment design checks. సమాధానం: D.
Question 13 ప్రశ్న 13

Answer: A. Compare geotechnical treatment, earthwork, drainage and maintenance costs before preferring the apparently shorter corridor. సమాధానం: A.
Question 14 ప్రశ్న 14

Answer: C. Origin-destination patterns, safety, through-traffic travel time and retained local accessibility should be assessed together. సమాధానం: C.
Question 15 ప్రశ్న 15

Answer: B. Prefer evaluating Route Q for safer coordinated horizontal and vertical geometry and adequate stopping sight distance. సమాధానం: B.
Question 16 ప్రశ్న 16

Answer: D. Compare grade-separation needs, railway-interface risk, utility protection or relocation, delay and total project cost before finalizing. సమాధానం: D.
Question 17 ప్రశ్న 17

Answer: C. Land acquisition, severance of holdings, resettlement, access continuity and full economic and environmental implications. సమాధానం: C.
Question 18 ప్రశ్న 18

Answer: A. Examine habitat avoidance as a priority, evaluate the alternate route and any necessary mitigation, and apply relevant environmental-clearance requirements. సమాధానం: A.
Question 19 ప్రశ్న 19

Answer: B. B, with 480 crore compared with A at 540 crore, a saving of 60 crore. సమాధానం: B.
Question 20 ప్రశ్న 20

Answer: D. 3.50% and 1 in 28.6. సమాధానం: D.
Question 21 ప్రశ్న 21

Answer: A. Y is 3 km longer but saves 13 minutes on the stated trip; its overall preference still requires cost, safety and environmental comparison. సమాధానం: A.
Question 22 ప్రశ్న 22

Answer: C. Route B's excavation costs Rs. 1.2 crore versus Route A's Rs. 3.0 crore, but this is not enough alone to select the final alignment. సమాధానం: C.
Question 23 ప్రశ్న 23

Answer: D. A scores 73 and B scores 77, so B ranks higher under the given weighting. సమాధానం: D.
Question 24 ప్రశ్న 24

Answer: B. 5.0% and 1 in 20. సమాధానం: B.
Question 25 ప్రశ్న 25

Answer: A. Compare geometric and traffic performance, construction and road-user costs, land and utility impacts, environmental mitigation and safety before recommending one alternative. సమాధానం: A.

Answer Key || సమాధానాల పట్టిక

Related Quizzes || సంబంధిత క్విజ్‌లు

Civil HMWSSB, Unit 7 - Transportation Engineering Quiz

TGPSC HMWSSB Quiz

Answer Key సమాధానాల పట్టిక

Related Quizzes సంబంధిత క్విజ్‌లు