Uncategorized Geometric Design GATE Exam Test by adminOctober 5, 2021October 5, 2021 5 Created on October 05, 2021 Geometric Design GATE Exam Test 1 / 10 Consider the following statement in the context of geometric design of roads.I. A simple parabolic curve is an acceptable shape for summit curves.II. Comfort to passengers is an important consideration in the design of summit curves.The correct option evaluating the above statements and their relationship is I is false, II is true I is true, II is false I is true, II is false 2 / 10 A horizontal circular curve with a centre line radius of 200 m is provided on a 2-lane, 2-way SH section. The width of the 2-lane road is 7.0 m. Design speed for this section is 80 km/h. The brake reaction time is 2.4 s and the coefficients of friction in longitudinal and lateral directions are 0.355 and 0.15, respectivelyThe safe stopping sight distance on the section (GATE 2008) 124 m 195 m 65 m 3 / 10 A road is provided with a horizontal circular curve having deflection angle of 55° and centre line radius of 250 m. A transition curve is to be provided at each end of the circular curve of such a length that the rate of gain of radial acceleration is 0.3 m/s3 at a speed of 50 km per hour. Length of the transition curve required at each of the ends is________. 35.73 m 33.33 m 2.57 m 4 / 10 On a circular curve, the rate of super-elevation is e. While negotiating the curve a vehicle comes to a stop. It is seen that the stopped vehicle does not slide inwards (in the radial direction). The coefficient of side friction is f. Which of the following is true? f < e < 2f e ≤ f e ≥ 2f 5 / 10 A crest vertical curve joins two gradients of +3% and –2% for a design speed of 80 km/h and the corresponding stopping sight distance of 120 m. The height of driver’s eye and the object above the road surface are 1.2 m and 0.15 m respectively. The curve length (which is less than stopping sight distance) tobe provided is 152 m 120 m 163 m 6 / 10 The design speed for a two lane road is 80 km/h, when a design vehicle with a wheel base of 6.6 m is negotiating a horizontal curve on that road, the off tracking is measured as 0.096 m. The required widening of carriageway of the two lane road on the curve is approximately 0.65 m 0.75 m 0.85 m 7 / 10 A horizontal circular curve with a centre line radius of 200 m is provided on a 2-lane, 2-way SH section. The width of the 2-lane road is 7.0 m. Design speed for this section is 80 km/h. The brake reaction time is 2.4 s and the coefficients of friction in longitudinal and lateral directions are 0.355 and 0.15, respectivelyThe set-back distance from the centre line of the inner lane is 8.1 m 9.703 m 9.7 m 8 / 10 A super speedway in New Delhi has among the highest super-elevation rates of any track on the Indian Grand Prix circuit. The track requires drivers to negotitate turns with a radius of 335 m and 33° banking. Given this information, the coefficient of side friction required in order to allow a vehicle to travel at 320 km/h along the curve is 1.755 2.530 0.176 9 / 10 A vehicle negotiating a transition curve with uniform speed v. If the radius of the horizontal curve and the allowable jerk are R and J respectively. The minimum length of transition curve is R3/vJ v3/RJ J3/Rv 10 / 10 A road is being designed for a speed of 110 km/h on a horizontal curve with a super-elevation of 8%. If the coefficient of side friction is 0.1, the minimum radius of the curve (in m) required for safe vehicular movement is 528.74 152 264.3 Your score is The average score is 34% LinkedIn Facebook Twitter 0% Restart quiz