Description : Roughness index of roads, is expressed as (A) Size of the stone on the pavement (B) Number of patches on the pavement (C) Cumulative deformation of surface per horizontal distance (D) Type of the road surface
Last Answer : Answer: Option C
Description : Design of horizontal curves on highways, is based on (A) Design speed of vehicles (B) Permissible friction on the road surface (C) Permissible centrifugal ratio (D) All the above
Last Answer : Answer: Option D
Description : While calculating the overtaking sight distance, the height of the object above road surface, is assumed (A) 50 cm (B) 75 cm (C) 100 cm (D) 120 cm
Description : The ideal angle of banking provided on roads a.Depends on (velocity)2 of vehicle b.Depends on the nature of road surface c.Depend on coefficient of friction between the road and the vehicle cantact point d.Depends on weight of the vehicle e.All above
Last Answer : a. Depends on (velocity)2 of vehicle
Description : The type of transition curves generally provided on hill roads, is (A) Circular (B) Cubic parabola (C) Lemniscate (D) Spiral
Description : If L is the length of vehicles in metres, C is the clear distance between two consecutive vehicles (stopping sight distance), V is the speed of vehicles in km/hour, the maximum number N of vehicles/hour, is (A) N = 1000 V / (L + C ... ) / 1000 V (C) N = 1000 L / (C + V) (D) N = 1000 C / (L + V)
Last Answer : Answer: Option A
Description : Non-passing sight distance along a road is the longest distance at which the driver of a moving vehicle, may see an obstacle on the pavement (A) 10 cm high (B) 25 cm high (C) 50 cm high (D) 100 cm high
Description : Widening of the roads on curves in hilly region, is done (A) On the outer side (B) On the inner side (C) On the outer and inner sides equally (D) Less on outer side and more on inner side
Last Answer : Answer: Option B
Description : Hill roads are (A) Provided camber along spur curves (B) Provided camber along valley curves (C) Seldom provided a camber (D) None of these
Description : While calculating the sight distances, the driver's eye above road surface, is assumed (A) 90 cm (B) 100 cm (C) 110 cm (D) 120 cm
Description : The safe stopping sight distance D, may be computed from the equation (A) D = 0.278 Vt + V²/254f (B) D = 0.254 Vt + V²/278f (C) D = 0.254 Vt + V²/225f (D) D = 0.225 Vt + V²/254f
Description : The most commonly adopted method to provide super-elevation on roads, is by pivoting the road surface about (A) Outer edge so that the inner edge is lowered (B) Crown so that outer edge is raised and inner edge is lowered (C) Inner edge so that outer edge is raised (D) None of these
Last Answer : If you drive at a speed of 50 km on paved and good roads, the safe distance will be 25 meters.
Description : The distance between the towns is only 30 kms as the crow flies. (1) when measured in a straight line (2) when measured in a random manner (3) when measured between the two highest points (4) when the curves of the road are included in the measurement
Last Answer : 1) when measured in a straight line
Description : The absolute minimum sight distance required for stopping a vehicle moving with a speed of 80 kmph, is (A) 120 m (B) 200 m (C) 640 m (D) None of these
Description : Design of horizontal and vertical alignments, super-elevation, sight distance and grades, is worst affected by (A) Width of the vehicle (B) Length of the vehicle (C) Height of the vehicle (D) Speed of the vehicle
Description : Roads are bent inwards on curves. Why?
Last Answer : Ans: The roads are bent inwards on the curves and at the turns because the bents avoid falling outside and prevent the accidents. OR When an object turns in a circle it is influenced by a centrifugal ... in a way that these bent inward at the turns to avoid falling outside and to prevent accidents.
Description : Roads are bent inwards on curves.
Last Answer : 1- The centrifugal force experienced by the vehicle is lowered by the raised end, so the vehicle doesn’t skit or goes off from the road. 2- The centripetal force is supplemented by the gravitaional forces from below.
Description : List various types of curves provided on Hill Roads.
Last Answer : Types of curves provided on hill roads: - 1) Hair pin curves 2) Salient curves 3) Re-entrant curves
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
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
Description : Side drains on both sides of a hill road, are essential when the road is (A) Along the spur curves (B) Along the re-entrant curves (C) In cutting (D) None of these
Description : Stopping distance of vehicles : When brakes are applied to a moving vehicle, the distance it travels before stopping is called stopping distance. It is an important factor for road safety and depends on ... the brake with the deceleration of 5m/s2. Find the stopping distance of the car -Science
Last Answer : Here u=72 km/hr = 72×10003600m/s=2072×10003600m/s=20 m/s , v=0 a= -5 m/s2 Now using the relation v2=u2+2asv2=u2+2as 0=(20)2+2×(−5)×s0=(20)2+2×(−5)×s s=40ms=40m
Description : Following type of pavement is generally known as flexible pavement (A) Water-bound macadam roads (B) Stabilised soil roads (C) Road constructed with various layers of building material well compacted (D) All the above
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 : Pick up the correct statement from the following: A. Inlets are provided on the road surface at the lowest point for draining rain water B. Inlets are generally provided at an interval of ... along straight roads C. Inlets having horizontal openings, are called horizontal inlets D. All the above
Last Answer : ANS: D
Last Answer : 50 yards or 150 feet.
Description : The efficiency of the brakes of a vehicle depends upon (A) Condition of road surface (B) Condition of the tyres (C) Presence of the show moisture (D) All the above
Description : Road makers along roads from the edge of a kerb should not be less than (A) 40 cm (B) 45 cm (C) 50 cm (D) 60 cm
Description : At a road junction, 16 cross conflict points are severe, if (A) Both are one-way roads (B) Both are two-way roads (C) One is two-way road and other is one-way road (D) None of these
Description : At a road junction, 7 cross conflict points are severe if (A) Both are one-way roads (B) Both are two-way roads (C) One is two-way road and other is one-way road (D) None of these
Description : To prevent a head-on-collision of vehicles travelling in opposite directions along four-lane roads (A) Markings on the road are provided (B) Physical dividers are provided (C) Area dividers are provided (D) Medians of wide area are provided
Description : The width of different roads as recommended in Nagpur plan by the Indian Road Conference for hilly region, is (A) Same for National Highways (B) Different for National Highways (C) Same for State Highways (D) Same for Major District roads
Description : In hill roads the side drains arc provided (A) Only on the hill side of road (B) Only on the opposite side of hill (C) On both sides of roa (D) None of the above
Description : Enlist the type of curves in road and railway alignment.
Last Answer : The type curves in road and railway alignment : 1) Horizontal Curves a) Simple curve b) Compound curve c) Reverse curve d) Transition curve 2) Vertical Curves a) Summit curve b) Valley curve
Description : Horizontal curves on highways are provided (A) To break the monotony of driving (B) To discourage the tendency to increase speed (C) To decrease the mental strain on drivers (D) All the above
Description : What is the maximum line-of-sight distance between a paging antenna 250 ft high and a pager receiver 3.5ft of the ground? A. 25 km B.25mi C. 70.73 km D. 70.73 mi
Last Answer : B.25mi
Description : The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to (A) The distance between the zero of ... Thrice the distance between the zero of graduation and the foot of the staff (D) None of the above
Last Answer : (B) Twice the distance between the zero of graduation and the foot of the staff
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 : If N is the algebraic difference of grades, S is the minimum sight distance in metres, the length (L) of a summit curve is (A) NS/4 (B) NS²/4 (C) N²S/4 (D) (NS)²/4
Description : If N is the net difference of grades, S is the minimum overtaken sight distance in metres, the length (L) of a summit curve, is (A) NS/4 (B) NS²/4 (C) NS²/4.8 (D) NS²/9.6
Description : The distance travelled by a moving vehicle during perception and brake reaction times, is known as (A) Sight distance (B) Stopping distance (C) Lag distance (D) None of these
Description : For night travel, the length of a valley curve should be such that the head light beam distance is the same as (A) Stopping sight distance (B) Overtaking sight distance (C) Sum of (a) and (b) (D) Difference of (a) and (b)
Description : Length of vehicles does not affect (A) Extra widening (B) Minimum radius of turning (C) Passing sight distance (D) Width of shoulders
Description : The maximum average depth due to one day storm over an area of 100 km² is 100 mm. DepthArea-Duration (DAD) curves indicate the same area of 100 km² the maximum average depth for a 3 hour storm will be (A) 100 mm (B) More than 100 mm (C) Less than 100 mm (D) None of the above
Description : Floating gradients are generally provided (A) Along maximum gradients (B) Along minimum gradients (C) At summit curves (D) At valley curves
Description : To ensure that bullock carts may not overturn on curves, the maximum value of super-elevation, recommended by I.R.C., is (A) 1 in 10 (B) 1 in 12 (C) 1 in 15 (D) 1 in 20
Description : Speed breaker has to be provided on road approaches of level crossing at maximum feasible distance within Railway boundary but not exceeding a) 10 meters b) 15 meters c) 20 meters* d) 200 meters
Last Answer : c) 20 meters*
Description : The slope on the road generally provided on the curves is known as a.Angle of repose b.Angle of friction c.Angle of banking d.Angle of reaction e.None of the above
Last Answer : c. Angle of banking
Description : Minimum stopping distance for moving vehicles on road with a design speed of 80 km/hour, is (A) 80 m (B) 100 m (C) 120 m (D) 150 m