If x% is the gradient of an alignment and y% is the gradient after proper super-elevation along a
curved portion of a highway, the differential grade along the curve, is
(A) (x + y) %
(B) (x - y) %
(C) (y - x) %
(D) (y + x) %

1 Answer

Answer :

Answer: Option C

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Description : If the rate of change of the super-elevation along a curved portion of a 7 metre wide road is 1 in 150 and the maximum super-elevation allowed is 1 in 15, the maximum length of the transition curve to be provided at either end, is (A) 65 m (B) 70 m (C) 75 m (D) 80 m

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Description : The difference in gradients after full super-elevation and the initial alignment of a road, is known as (A) Ruling gradient (B) Rising gradient (C) Compensated gradient (D) Differential gradient

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Description : According to ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength. a) X=30 Y=18 b) X=30 Y=30 c) X=18 Y=18 d) X=18 Y=30

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Description : Seats for Mathematics, Science and arts in a school are in the ratio 5:7:8. There is a proposal to increase these seats by X%, Y% and Z% respectively. And the ratio of increased seats is 2:3:4, which of the following is true? A) X = ... ; Z = 50 C) X = 40; Z = 75 D) X = 50; Z = 40 E) Y = 50; X = 75

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Description : Transition curves are introduced at either end of a circular curve, to obtain (A) Gradually decrease of curvature from zero at the tangent point to the specified quantity at the junction of the ... specified amount at the junction of the transition curve with main curve (D) None of these

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Description : If the designed speed on a circular curve of radius 1400 m is 80 km/hour, no super-elevation is provided, if the camber, is (A) 4 % (B) 3 % (C) 2 % (D) 1.7 %

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Description : When an up gradient of a highway meets a downgrade, the vertical curve provided, is known as (A) Valley curve (B) Sag curve (C) Summit curve (D) All the above

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Description : Maximum super-elevation on hill roads should not exceed (A) 5 % (B) 7 % (C) 8 % (D) 10 %

Last Answer : Answer: Option D

Description : The minimum super-elevation in rolling terrain in plains, is limited to (A) 4 % (B) 5 % (C) 6 % (D) 7 %

Last Answer : Answer: Option D

Description : Super-elevation on roads in snow bound areas, should generally not exceed (A) 15 % (B) 12 % (C) 10 % (D) 7 %

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Description : The reduced levels of points, 30 metres apart along the longitudinal section of a road portion between chainages 5 and 9 are shown in the given figure. If there is a uniform up-gradient of the road 120 in 1, the chainage ... 15) chains (B) (6 + 12) chains (C) (6 + 18) chains (D) None of these

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Description : If is the speed of a locomotive in km per hour, g is the acceleration due to gravity, is the distance between running faces of the rails and is the radius of the circular curve, the required super elevation is (A) gV²/GR (B) Rg/GV² (C) GR/gV² (D) GV²/gR

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Description : If V is speed in km/hour and R is radius of the curve, the super-elevation e is equal to (A) V²/125 R (B) V²/225 R (C) V²/325 R

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Description : If V is speed of a moving vehicle, r is radius of the curve, g is the acceleration due to gravity, W is the width of the carriageway, the super elevation is (A) WV/gr (B) W²V/gr (C) WV²/gr (D) WV/gr²

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Description : A district road with a bituminous pavement has a horizontal curve of 1000 m for a design speed of 75 km ph. The super-elevation is (A) 1 in 40 (B) 1 in 50 (C) 1 in 60 (D) 1 in 70

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Description : If the coefficient of friction on the road surface is 0.15 and a maximum super-elevation 1 in 15 is provided, the maximum speed of the vehicles on a curve of 100 metre radius, is (A) 32.44 km/hour (B) 42.44 kg/hour (C) 52.44 km/hour (D) 62.44 km/hour

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Description : Pick up the correct statement from the following: (A) During reconnaissance, the general route of the alignment is selected (B) After reconnaissance, a trace is cut for the alignment (C) Last stage is the detailed surveys for desired geometries' of the highway (D) All the above

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Description : no super elevation is provided on a road along curves, pot holes may develop at (A) Inner edge of the road (B) Outer edge of the road (C) Centre of the road (D) Nowhere on the road

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Description : The full width of land acquired before finalising a highway, alignment is known (A) Width of formation (B) Right of way (C) Carriage way (D) Roadway

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Description : The surface of zero elevation around the earth, which is slightly irregular and curved, is known as (A) Mean sea level (B) Geoid surface (C) Level surface (D) Horizontal surface

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Description : Determining the difference in elevation between two points on the surface of the earth, is known as (A) Levelling (B) Simple levelling (C) Differential levelling (D) Longitudinal levelling

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Description : First operation during the detailed survey of a hill road, is (A) Hydrological and soil surveys (B) Adjustment of alignment along with curves (C) Derivation of longitudinal and cross-sections (D) Fixation of Bench Marks

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Description : Tortuosity of a meandering river is the ratio of (A) Meander belt to meander length (B) Meander length to meander belt (C) Curved length along the channel to the direct axial length of the river reach (D) Direct axial length of the river reach to curved length along the channel

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Description : If D is the degree of a curve, the percentage reduction of gradient, is (A) 0.01 D (B) 0.02 D (C) 0.03 D (D) 0.04 D

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Description : If the ruling gradient is 1 in 150 on a particular section of a broad gauge track, the allowable ruling gradient on a 4° curve in the track will be : (a) 0.51% (b) 0.53% (c) 0.61% (d) 0.67%

Last Answer : (a) 0.51%

Description : When a pencil is partly immersed in water in a slanting position, the immersed portion appears (a) bent towards the bottom (b) bent towards the water surface (c) bent in a zigzag manner (d) curved downward

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Description : In highway construction on super-elevated curves, the rolling shall proceed from (A) Sides towards the centre (B) Centre towards the sides (C) Lower edge towards the upper edge (D) Upper edge towards the lower edge

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