سوال ۱۵ کنکور ارشد مهندسی مکانیک ۱۴۰۳

PART C: Reading Comprehension

PASSAGE 1:

In the Philippines, the motorized tricycle is one of the most common means of public transportation. Motorized tricycles are exposed to a repetitive stop and go motion especially on the tricycle since the road scenario in most areas is characterized with moderate to heavy traffic most of the time. This states that the tricycle utilizes the braking system often, thus wasting energy due to braking. Heat energy loss is always present in the braking system of a vehicle; due to this phenomenon, a method was developed to recover and store the energy loss due to the friction in the brakes. With the use of the regenerative braking, the energy loss due to braking could be stored for another use.

Regenerative braking is a type of braking system that can recover and store the kinetic energy produced by the car and convert the recovered energy into either mechanical or electrical energy. In order to store the kinetic energy recovered by the braking system, a mechanical component called flywheel is used. The amount of the kinetic energy that may be gathered depends on the inertia and the speed of the rotating mass or flywheel; this energy is stored as a rotational energy. With the concept of the flywheel and the regenerative brakes, the mechanical kinetic energy recovery system (KERS) is utilized. KERS is a system that recovers and stores the kinetic energy that would be otherwise converted to heat energy during braking and use it for other applications in the vehicle.

Which of the following best describes the tone of the passage?