Q1. A runway is being constructed in a new airport as per the International Civil Aviation
Organization (ICAO) recommendations. The elevation and the airport reference temperature
of this airport are 535 m above the mean sea level and 22.65°C, respectively. Consider the
effective gradient of runway as 1%. The length of runway required for a design-aircraft under
the standard conditions is 2000 m. Within the framework of applying sequential corrections as
per the ICAO recommendations, the length of runway corrected for the temperature is
Q2.A super-elevation e is provided on a circular horizontal curve such that a vehicle can be
stopped on the curve without sliding. Assuming a design speed v and maximum coefficient of
side friction fmax, which one of the following criteria should be satisfied?
Q3. The accuracy of an Electronic Distance Measuring Instrument (EDMI) is specified as
± (a mm + b ppm). Which one of the following statements is correct?
Answer : Option BExplaination / Solution:
Accuracy of EDMI is generally stated in terms of constant instrument error and measuring
error proportional to distance being measured.
± (a mm + b ppm)
The first part in this expression indicates a constant instrument error that is independent of
length of line measured. Second component is distance related error.
Q4.The queue length (in number of vehicles) versus
time (in seconds) plot for an approach to a
signalized intersection with the cycle length of 96
seconds is shown in the figure (not drawn to scale).
At time t = 0, the light has just turned red. The
effective green time is 36 seconds, during which
vehicles discharge at the saturation flow rate, s (in vph). Vehicles arrive at a uniform rate v (in vph), throughout the cycle. Which one of the following statements is TRUE?
Answer : Option BExplaination / Solution: No Explaination.
Q5.The radius of a horizontal circular curve on a highway is 120 m. The design speed is 60
km/hour, and the design coefficient of lateral friction between the tyre and the road surface is
0.15. The estimated value of superelevation required (if full lateral friction is assumed to
develop), and the value of coefficient of friction needed (if no superelevation is provided)
will, respectively, be
Q7.A two lane, one-way road with radius of 50 m is predominantly carrying lorries with
wheelbase of 5 m. The speed of lorries is restricted to be between 60 kmph and 80
kmph. The mechanical widening and psychological widening required at 60 kmph are
designated as wme,80 and wps,80, respectively. The mechanical widening and
psychological widening required at 80 kmph are designated as and wme,80 and wps,80, respectively. The correct values of wme,60, wps,60 respectively are
Q9.A road is being designed for a speed of 110 km/hr on a horizontal curve with a super
elevation of 8%. If the coefficient of side friction is 0.10, the minimum radius of the curve (in
m) required for safe vehicular movement is
Q10.On a section of a highway the speed-density relationship is linear and is given by v = [80-(2/3)k]; where v is in km/h and k is in veh/km. The capacity (in veh/h) of this section of the highway would be
Answer : Option BExplaination / Solution:
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0