The strength of "Mechanical Engineering: Conventional and Objective Type" by R.K. Jain lies in its breadth. It covers almost every sub-discipline a mechanical engineer needs to know:
First, always start with a brief review of your textbooks or class notes. Jumping straight into MCQs without a theoretical foundation can lead to rote memorization, which fails when questions are slightly tweaked.
While many students search for the R.K. Jain mechanical engineering objective questions PDF for convenience, the method of study is more important than the format.