Question

SORU 1/ QUESTION 1: Demiryolu üstyapısı bileşenlerinin adlarını yerlerine yazın (6 puan) /Write the names of the railway superstructure in proper places (6 pts). + SORU 2 / QUESTION 2: Bir demiryolu arabasının tekerleklerinin, karayolu arabalarının tekerleklerinden farkları nelerdir (15 puan)? /What are the main differences between the wheels of a railway and a highway vehicle (15 pts)?

Railway Construction

Answer 1

1) i) Rails ii) Sleeper ja) Barelast 2) . . wheels of Rail vehicle are usually mounted on a solid axle, so they turn at the same speed when a main vehicle twins, the outer wheel has to travel further than the inner wheel on a road vehicle, this is usually achieved by allowing the wheels to move independently, and fixing the front wheels in a barticular arrange- ment. 9n railways, the movement of Steel wheels on Steel sails has basic advantage of low falling gesistance this reduces haulage costs because of low tractive resistance In road vehicles, the tractive resistance of a pneumatic tyre on metalled roads is almost five times compared to that of wheel on rails. In railways, the surface of wheels are made in cone shape at an inclination of 1 in 20, and the same slope is provided in the rails. This is known as coning of wheels. coning of the wheels keep the train in its cent- cial bosition and does not allow Sidwise movement on a straight track. It also reduce wear and tear. . . .

. In road vehicles, front wheels have the reim thet is convenc in Shabe for Steering burpose and the rear wheels are concave in shape because in case of highway vehicles, they carsey e borge Joach Highway whide wheels are basi wasically made of aluminium alloys also known as alloy wheels Bailways wheels are made of Steel alloys also Known as steel wheels.