Railway And Airport Engineering Practice Questions

The maximum degree of the curve that can be used for railways in a mountainous region is

A horizontal curve of radius $1080 \mathrm{~m}$ (with transition curves on either side) in a Broad Gauge railway track is designed and constructed for an equilibrium speed of $70 \mathrm{kmph}$ . However, a few years after construction, the Railway Authorities decided to run express trains on this track. The maxium allowable cant deficiency is $10 \mathrm{~cm}$ . The maximum restricted speed (in $\mathrm{kmph}$ ) of the express trains running on this track is _____ (rounded off to the nearest integer)

The longitudinal sections of a runway have gradients as shown in the table.

Consider the reduced level $(\mathrm{RL})$ at the starting point of the runway as $100 \mathrm{~m}$ . The effective gradient of the runway is

As per the International Civil Aviation Organization (ICAO), the basic runway length is increased $b \times (\%)$ for every y $(m)$ raise in elevation from the Mean Sea Level (MSL) The values of $x$ and $y$ respectively, are

The number of trains and their corresponding speeds for a curved Broad Gauge section with $437 \mathrm{~m}$ radius are 20 trains at a speed of 40 kmph 15 trains at a speed of 50 kmph 12 trains at a speed of 60 kmph 8 trains at a speed of 70 kmph 3 trains at a speed of 80 kmph If the gauge (centre to centre distance between the rail heads) is taken as $1750 \mathrm{~mm}$ , the required equilibrium cant (in $\mathrm{mm}$ ) will be ____ (rounded off to the nearest integer)

The longitudinal section of a runway provides the following data:

The effective gradient of the runway (in %, round off to two decimal places) is _____________

For a $2^{\circ}$ curve on a high speed Broad Gauge (BG) rail section, the maximum sanctioned speed is 100 km/h and the equilibrium speed is 80 km/h. Consider dynamic gauge of BG rail as 1750 mm. The degree of curve is defined as the angle subtended at its center by a 30.5 m arc. The cant deficiency for the curve (in mm,round off to integer) is ________________

For the hottest month of the year at the proposed airport site, the monthly mean of the average daily temperature is 39 $^{\circ}C$ . The monthly mean of the maximum daily temperature is 48 $^{\circ}C$ for the same month of the year. From the given information, the calculated Airport Reference Temperature (in $^{\circ}C$ ), is

The appropriate design length of a clearway is calculated on the basis of 'Normal Takeoff' condition. Which one of the following options correctly depicts the length of the clearway?

A broad gauge railway line passes through a horizontal curved section (radius = 875 m) of length 200 m. The allowable speed on this portion is 100 km/h. For calculating the cant, consider the gauge as centre-to-centre distance between the rail heads, equal to 1750 mm. The maximum permissible cant (in mm, round off to 1 decimal place) with respect to the centre-to-centre distance between the rail heads is_____

For a broad gauge railway track on a horizontal curve of radius R (in m), the equilibrium cant e required for a train moving at a speed of V (in km per hour) is

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 $^{\circ}$ 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