BNSF Session 4 Questions With Correct Answers 100%

If you have a track relay the two common resistance of the coil are ________ Ohms and _________ and are usually supplied with ________ volts? - Answer-2 Ohms, 4 Ohms, and 1-2Volts If you have a line relay the two common resistances of the coil are ________ Ohms and ________ Ohms and are usually supplied with _________ volts? - Answer-500 Ohms, 1000 Ohms, and 10-14 Volts In CTC territory, a hand throw switch is not sufficient protection, what else do we need to install to prevent the hand throw switch from being operated until safe to do so. - Answer-Electric Switch Lock What does the letter "N" designate, regarding contact adjustment, on a circuit print of a switch circuit controller? - Answer-Front & Heal contacts made from full normal up to but not including 1/4 inch from full normal What portion of a GRS 9B electric switch lock must be extracted from the lock rod before the switch points can move? - Answer-Plunger To expedite train departure from the mainline BNSF installs a mainline _____________ circuit ahead of the switch point for an EWL. - Answer-Release Before adjusting any power operated switch machine the points should be closed with moderate pressure to the stock rail, if the point is gapped where would this adjustment be made to correct this? - Answer-Basket On a POSM, nomenclature can vary but if there is a NWCR and RWCR what are these relays used to repeat? - Answer-The switch position corresponds with the dispatcher's request On a POSM, nomenclature can vary but if the is a NWPR and RWPR what does the RWPR indicate. - Answer-The switch is lined reverse When adjusting a power operated switch machine, always adjust the rods in the following order? - Answer-Far PD, Far Lock, Near PD, Near LockThe relay which requests the route for any train based on "first come first serve" is the? - AnswerApproach Track Relay The relay which requests and establishes the route? - Answer-Route Relay and the Route Repeater Relay The relay which changes the signal aspect is the? - Answer-Home Relay The relay which prevents a signal clearing behind a train as it leaves the interlocker is the? - Answer-Stick Relay A _____________ _____ _________ of 5 seconds or less shall not permit an established rout to be changed at an automatic interlocking - Answer-loss of shunt (FRA 236.309) ___________ locking prevents opposing signals from clearing once a train has a proceed signal in the route. - Answer-Traffic Locking (FRA 236.769) Approach or time locking shall be provided for all interlocker signals capable of displaying aspects more favorable than? - Answer-Proceed at restricted speed (FRA 236.305) Nemonic for Interlocking: Owning Real Expensive Luxury Cars Lets People Realize URRich - Answer-Occupy the Track Request the Track Establish the Route Lock the Route Clear the Signal Light the Signal Pick the Stick Release the Route Unlock the Route Release the Stick With regards to interlocking "Occupancy" involves what relay(s): - Answer-Relays down: ATR, TR, AR, APR With regards to interlocking "Request the Route" involves what relay(s): - Answer-Relay up: RR With regards to interlocking "Establish the Route" involves what relay(s): - Answer-Relay up: RPR With regards to interlocking "Locking the Route" involves what relay(s): - Answer-Relay down: ASR With regards to interlocking "Clear the signal" involves what relay(s): - Answer-Relays up: HR, HPR, -- 75CTR With regards to interlocking "Light the Signal(s)" involves what relay(s): - Answer-Relays up: LOR, CFTPR