In today's world, we are faced with the problem of pollution. It is caused by the traffic vehicles and is a serious problem. In order to solve this problem, we need to build new roads and railways. The Government is also planning to construct new railway lines in order to increase the speed of the trains. These new railway lines will be built in a green environment so that the pollution will be reduced.

RRB Junior Engineer is an entrance exam that is held by the Railways. The exam is designed to find the best candidates for the post of Junior Engineer. It is held in three phases. In the first phase, there are 100 questions. In the second phase, there are 64 questions and in the last phase, there are 40 questions.