To qualify as Conductor on the LIRR, you have to know the book of rules from cover to cover, and how those rules apply to the safe operation of the Train, you have to know all rules, definitions, the names of all signals and what their indications mean. You also have to know all the special instructions in the timetable, and how and where they apply. That is the book of rules part of the test. After taking the book of rules test, you have to then take a test on the physical characteristics of the Railroad, and what rules are In effect on each branch. You have to be able to draw, and verbally describe the entire railroad. You are responsible to know where all stations, signals, sidings, switches, etc. are, and how many cars the stations and sidings hold. You also have to know what equipment restrictions there are on the railroad. After taking that test, you have to go for air brake instruction, and pass a test to have a working knowledge of the equipment, and how to troubleshoot broken down trains. After that you are scheduled for a test in Penn station, where Amrtrak gives instructions on the Norac rules in Penn station, and then you have to take a test on the Amtrak book of rules and Physical characteristics of Amtrak Zone A NY. These tests are usually scheduled a month or so apart, and if you fail any part of them, you continue in the process, and then go back and are re-examined in the area that you failed in. After 3 failures in any area, you are taken out of service with no pay, and after 7failures are terminated from employement. The time between starting work on the railroad and taking the test has varied, right now they are calling people up for the test after about 2 years employment as assistant conductors. The failure rate varies from class to class, the average of failures is probably as high as 25 per cent of all people who take the test. At one time we Had a Conductor Named Merideth who was also a criminal lawyer, she has since retired after 20 years and gone on to a full time law practice. She once told me the bar exam was easier then the Conductors exam. I don't know first hand, but that is what she told me.