Here I am giving you name of some entrance examination to get a better job in railway recruitment board below :

Special Class Railway Apprentice (SCRA) Exam
Railway Officers Examination-
Railway Traffic Service (IRTS),
Indian Railways Accounts Service (IRAS),
Indian Railway Service of Engineers (IRSE),
Indian Railway Service of Electrical Engineers (IRSEE),
Indian Railway Services of Signal Engineers (IRSSE),
Indian Railway Store Service (IRSS),
RPF Sub-Inspectors / Constables Examination
Railway TT/TC exam
Railway LOCO pilot exam
Railway ASM post examination
Railway police force examination

Indian Railway Store services
Railway Protection Force Sub Inspector posts.
Junior Executive
System Analyst
Stenographer
Computer maintenance officer
Indian Railway Traffic service
Indian Railway Service of Engineers
Indian Railway service of Signal engineers

Railway Jobs for B.Tech ECE
(i) Indian Railway Service of Signal Engineers.
(ii) Indian Railway Stores Service (Telecommunication/ Electronics Engineering Posts).
(iii) Section engineer
(iv) Junior Engineer

Railway Recruitment Board Exam Syllabus for Exam of all posts

Subjects:- 1. General Awareness
2. Arithmetic
3.Technical Ability
4. Reasoning Ability
5. General Intelligence

1. General Awareness : This part of question paper gauges the candidates is up to date with surrounding and includes the following:
Current Affairs (National and International)
Major Financial/Economic News
Budget and Five Year Plans
Who is Who
Sports
Books and Authors
Awards and Honours
Science - Inventions and Discoveries
Abbreviations
Important Days
International and National Organisations

2. Arithmetic Ability : This part of exam is usually checks the quantitative and mathematical skills of the candidates and following is the topics from which the questions asked:
Number System
HCF, LCM
Simplification
Decimal Fractions
Ratio and Proportions
Unitary Method
Percentage
Time and Distance
Time and Work
Profit and Loss
Average
Simple and Compound Interest
Mensuration (2D and 3D)
Algebra
Data Interpretation

3. Technical Ability - This is generally the questions that includes the knowledge of the candidates about the profession and some technical questions which may be tricky.

4. Test of Reasoning/Mental Ability/Aptitude: This part usually tries to test the reasoning abilities and Gauges aptitude of the person. It includes the following:

VERBAL
Number Series
Alphabet Series
Test of Direction Sense
Coding-Decoding
Number Ranking
Arithmetical Reasoning
Problem on Age Calculation
Blood Relations
Analogy
Decision Making etc.

NON-VERBAL
Non Verbal Series
Mirror Images
Cubes and Dice
Grouping Identical Figures
Embedded Figures etc

General Intelligence