Description : ferent grades are joined together by a (A) Compound curve (B) Transition curve (C) Reverse curve (D) Vertical curve
Last Answer : (D) Vertical curve
Description : The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known (A) A simple curve (B) A compound curve (C) A reverse curve (D) A vertical curve
Last Answer : (C) A reverse curve
Description : The type of curves generally provided on highways, is (A) Critical curve (B) Transition curve (C) Vertical curve (D) All the above
Last Answer : Answer: Option D
Description : In case of a hair pin bend of a highway, (A) Minimum radius of inner curve is 14 m (B) Minimum radius of transition is 15 m (C) Circular compound curve may be provided (D) All the above
Description : Give the classification of curve and Define 1.Transition curve 2. Reverse curve
Last Answer : Classification of curve is as follows1) Horizontal curve a) Simple curve b) Compound curve c) Reverse curve d) Transition curve e) Lemniscate curve 2) Vertical curve a) Summit curve ... their centers lie on opposites sides of the curve . They have one common tangent.
Description : Pick up the incorrect statement from the following. On highways circular curves may be (A) Simple curves (B) Compound curves (C) Reverse curves (D) Vertical curves
Description : If the radii of a compound curve and a reverse curve are respectively the same, the length of common tangent (A) Of compound curve will be more (B) Of reverse curve will be more (C) Of both curves will be equal (D) None of these
Last Answer : Answer: Option C
Description : Pick up the correct statement from the following: (A) Long tangent sections exceeding 3 km in length should be avoided (B) Curve length should be at least 150 metres for a deflection angle of 5 ... decrease in the deflection angle, 30 metre length of curve to be increased (D) All the above
Description : Define compound curve and reverse curve
Last Answer : Compound Curve: A compound curve consists of two arc of different radius curving in the same direction. The centers of the two arc situated on the same side of the curve. Reverse Curve: A ... opposite direction with a common tangent. The two centers are on the opposite sides of a common tangent.
Description : If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum perpendicular offset for the transition curve, is (A) 0.70 m (B) 1.70 m (C) 2.70 m (D) 3.70 m
Last Answer : (C) 2.70 m
Description : An ideal transition curve is (A) Cubic parabola (B) Cubic spiral (C) Clothoid spiral (D) True spiral
Last Answer : (C) Clothoid spiral
Description : If the rate of gain of radial acceleration is 0.3 m per sec3 and full centrifugal ratio is developed. On the curve the ratio of the length of the transition curve of same radius on road and railway, is (A) 2.828 (B) 3.828 (C) 1.828 (D) 0.828
Last Answer : (A) 2.828
Description : Perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to (A) Shift (B) Twice the shift (C) Thrice the shift (D) Four times the shift
Last Answer : (D) Four times the shift
Description : If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum deflection angle to locate its junction point, is (A) 1°43' 08" (B) 1°43' 18" (C) 1°43' 28" (D) 1°43' 38"
Last Answer : (C) 1°43' 28"
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
Last Answer : (B) Gradual increase of super-elevation from zero at the tangent point to the specified amount at the junction of the transition curve with main curve
Description : If R is the radius of a main curve and L is the length of the transition curve, the shift of the curve, is (A) L/24 R (B) L2 /24 R (C) L3 /24 R (D) L4 /24 R
Last Answer : Answer: Option B
Description : Full amount of extra width of a pavement on the curve, is provided at (A) Beginning of the transition curve (B) Centre of the transition curve (C) Beginning of the circular curve (D) Centre of the circular curve
Description : The standard equation of a cubic parabolic transition curve provided on roads, is (A) y = x3 /6 RL (B) y = x/6 RL (C) y = l²/6 RL (D) y = l3 /6 RL
Last Answer : Answer: Option A
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
Description : The radius of curvature provided along a transition curve, is (A) Minimum at the beginning (B) Same throughout its length (C) Equal to the radius of circular curve (D) Varying from infinity to the radius of circular curve
Description : In an ideal transition curve, the radius of curvature (A) Is constant (B) At any point is directly proportional to its distance from the point of commencement (C) Is inversely proportional to the radius of main curve (D) Is directly proportional to the radius of main curve
Description : The standard equation of a cubical spiral transition curve provided on roads, is (A) y = l²/6RL (B) y = x3 /6RL (C) y = x2 /6RL (D) y = x/6RL
Description : If a Lemniscate curve of transition throughout is introduced to connect two parallel roads, the maximum polar angle of the curve, is (A) 10° (B) 15° (C) 20° (D) 30°
Description : If the radius of a main curve is 300 m and length of the transition curve is 100 m, the angle with tangent to locate the junction point, is (A) 1° 11' (B) 2° 11' (C) 3° 11' (D) 4° 11'
Description : The length of a transition curve, is governed by (A) Rate of change of radial acceleration (B) Rate of change of super-elevation (C) Both (a) and (b) (D) Neither (a) nor (b)
Description : The ideal shape of a transition curve, is (A) Clothoid (B) Cubic spiral (C) Cubic parabola (D) Lamniscate
Description : An ideal horizontal transition curve is a (a) Parabola (b) Circle (c) Clothoid spiral (d) Hyperbola
Last Answer : (c) Clothoid spiral
Description : The total value of extra widening required at a horizontal curve on a two lane hill road of radius 42 m for a design speed of 50 kmph and for vehicles with wheel base 6 m, is (A) 0.500 m (B) 0.589 m (C) 1.089 m (D) 0.089 m
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
Description : Length of vehicles does not affect (A) Extra widening (B) Minimum radius of turning (C) Passing sight distance (D) Width of shoulders
Description : At intersection of roads, the traffic volume study is carried out to ascertain the number of vehicles (A) Moving along straights (B) Turning left (C) Turning right (D) All the above
Description : Curves in the same direction separated by short tangents, are called (A) Simple circular curves (B) Compound curves (C) Transition curves (D) Broken-back curves
Description : If +0.8% grade meets -0.7% grade and the rate of change of grade for 30 m distance is 0.05, the length of the vertical curve will be (A) 600 m (B) 700 m (C) 800 m (D) 900 m
Last Answer : (D) 900 m
Description : An ideal vertical curve to join two gradients, is (A) Circular (B) Parabolic (C) Elliptical (D) Hyperbolic
Last Answer : (B) Parabolic
Description : Pick up the correct statement from the following: (A) If the slope of the curve of a mass diagram in the direction of increasing abscissa is downward, it indicates an embankment (B) The ... and the next forward maximum ordinate represents the whole volume of a cutting (D) All the above
Last Answer : (D) All the above
Description : If N is deviation angle the length L of a parabolic vertical curve for overtaking sight distance S, is (A) NS²/9.6 if L > S (B) NS²/9.6 if L < S (C) 2S - 9.6/N if L < S (D) Both (A) and (C)
Description : The shape of a vertical curve, is (A) Parabolic (B) Elliptical (C) Circular (D) Spiral
Description : An ideal vertical curve is (A) True spiral (B) Cubic spiral (C) Cubic parabola (D) None of these
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
Description : If the rate of change of grade permitted along a vertical curve is r and total change of grade is g%, the length L of the curve to be provided, is (A) L = (r × 100/g) m (B) L = (g × 100/r) m (C) L = (r + g) × 100m (D) L = [100/(r + g)] m
Description : Pick up the incorrect statement from the following. The width of the right-of-way is decided so as to accommodate (A) Formation width (B) Side slopes (C) Horizontal curve (D) Vertical curve
Description : The maximum distance of the apex of a vertical curve of length L from the point of intersection of two grades + g1%, and - g2% (g1 > g2), is (A) L(g - g (B) L(g - g (C) L(g g (D) L(g - g
Description : If N is deviation angle, the length L, of a parabolic vertical curve for safe stopping distance S, is (A) NS²/4.4 if L > S (B) 2S - 4.4/N if L < S (C) 2S - 4.4/N if L > S (D) Both (a) and (b)
Description : On a grading curve, the gap grading is represented by (A) A horizontal line (B) A vertical line (C) N.W. inclined line (D) N.E. inclined line
Description : The vertical distance between the springing line and highest point of the inner curve of an arch is known as (A) Intrados (B) Rise (C) Spandril (D) Extrados
Description : A 3% downgrade curve is followed by a 1% upgrade curve and rate of change of grade adopted is 0.1% per 20 m length. The length of the respective vertical curve is : (a) 800 m (b) 200 m (c) 100 m (d) 400 m
Last Answer : (a) 800 m
Description : Indicate which of the statement is incorrect with regard to coning of Wheels a)coning of wheels help the vehicle to negotiate a curve smoothly b) It helps in smooth riding c) It increases ... enables the outer wheel of vehicle to take a longer distance e) it restricts the swaying of vehicles
Last Answer : c) It increases wear and Tear of wheel flanges*
Description : The minimum ratio of the radii of two circular curves of a compound curve, is kept (A) 1.25 (B) 1.5 (C) 1.75 (D) 2.0
Description : For the construction of thin R.C.C. structures, the type of cement to be avoided, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement
Description : Consider the following statements: 1. Buried service lines should be avoided in an expansive soil region. 2. A swelling pressure less than 20 kN/m2 is not of much consequence. 3. If soil is not black in colour, it is unlikely to be an ... (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only
Last Answer : (b) 1 & 2 only