Check DDA JE Syllabus 2025, including subject-wise topics, exam pattern, exam strategies, and other crucial information on this page.

Railway Recruitment Board exams requires a strong foundation in Mathematics. Both RRB Group D and RRB NTPC exams test candidates on topics like Arithmetic, Algebra, Mensuration, and Trigonometry.

Topology has real implications in the world. For example, topological techniques can be brought to bear on calculating the trajectories of spacecraft, and missions have been saved by the efforts of ...

Functions and modules for creating metric (ISO) and English (UTS) standard screws and nuts. Included is a function for calculating the standard dimensions of screws including the tolerance values that ...

Cross threading occurs when the bolt is misaligned with the threads in the nut. It can destroy the threads, or cause the nut to jam. The standard beveled end process makes cross threading a ...