A free app for Android, by The Knowledge Express.
What is Speedy Railway Science?
Speedy Railway Science is a free educational Android app that contains a lot of useful science-related content for students of various railway exams, such as RRB NTPC, RRB Group D, and other competitive exams.
The app contains many topics, such as railway science, computer science, engineering, mathematics, physics, chemistry, and biology. For each topic, there are several subtopics that contain questions. These subtopics are divided into two sections: general knowledge (GK) and subject-specific (SS).
The app also contains a bank of over 200 questions. All of these questions are divided into two sections: easy and difficult.
