Session 4 Signal Apprentice School Bnsf

Front 1

Front (Term)

What type of signals are at interlockers

Back 1

Absolute

Front 2

List four examples of non-vital codes in electrocode?

Back 2

Back (Definition)

01 05 06 M

Leading to trailing

Front 3

Front (Term)

How are vital codes measured in electrocode?

Back 3

Back (Definition)

Leading to leading

Front 4

What battery voltage does electrocode send to the tracks to run correctly?

Back 4

10-13 volts.

Front 5

Shunt foulings or not fail safe and need to be tested on the mainline. Shunt must be ____ of normal

Back 5

10% NTE. .1

Front 6

Does shunt fouling detect a short or an open?

Back 6

Short

Front 7

Insulated joint stagger on mainline

Back 7

19'6"

Front 8

Insulated joint stagger on mainline

Back 8

19'6"

Front 9

Insulated joint stagger on turnout

Back 9

4'6"

Front 10

How often do you need to do a grounds test at a crossing and what release value are you looking for?

Back 10

75%

30 days

Front 11

How often do grounds test need to be performed at an intermediate signal

Back 11

90 days

Front 12

At what distance is a quick release circuit placed in front of hand throw switch on mainline

Back 12

50'

Front 13

How often do you need to test a 9B if it is a forced drop type switch lock

Back 13

4years

2 if not forced type switch lock

Front 14

How often does an electric switch lock need to be inspected

Back 14

90 days

Front 15

And electric switch lock will need to indicate at what measurement

Back 15

1/4"

Front 16

In a switch circuit which relay will tell you the exact position of the switch

Back 16

NWPR OR RWPR

the repeater

Front 17

What does NWCR or RWCR indicate

Back 17

If switch is in correspondence

Front 18

Will an m23b lock in indicate while in hand

Back 18

No

Front 19

Front (Term)

Will a GRS lock and indicate while in hand

Back 19

Back (Definition)

No

Front 20

Front (Term)

Will an m23a lock and indicate while in hand

Back 20

Back (Definition)

Yeswill

Front 21

What does sectional release allow for in route locking

Back 21

Quicker follow up moves

Front 22

How many flashes per minute must a light at the highway grade crossing flash

Back 22

35-65

Front 23

At a highway grade crossing how many seconds should the lights flash for before the gates drop

Back 23

3 seconds

Front 24

At a highway grade crossing how many seconds should the lights flash for before the gates drop

Back 24

3 seconds

Front 25

At a highway grade crossing how much time should pass before the gates fully to descend

Back 25

10-15 seconds

Front 26

Once I had a highway grade crossing system activates how long before the gates are descended

Back 26

20 seconds

Front 27

Rounders on front mast

Back 27

30-15

Front 28

Roundouls on back

Back 28

70-0

Front 29

HGXR LIGHTS ON front CANTILEVER

Back 29

20-32

Front 30

HGXR BACK OF CANTILEVER

Back 30

20-32

Front 31

What is the purpose of the gate circuit controller

Back 31

Open and close contacts on relays

Front 32

In a predictor what affects the phase angle

Back 32

Ballast.

Front 33

In a predictor what affects the phase angle

Back 33

Ballast.

Front 34

RX increase or decrease as train approaches

Back 34

Decreases

Front 35

Yellow/green

Back 35

Advanced approach 50 mph

Front 36

Yellow/flashing green

Back 36

Approach limited 60 mph

Front 37

Dark/yellow

Back 37

Approach. 30 prepared to stop

Front 38

What signal controls the bowl tracks

Back 38

Trim

Front 39

Coupling speed

Back 39

3-4

Front 40

What is needed to clean scanner lenses

Back 40

Anti fog solution. No rainex

Front 41

Warm bearing detectors alert desk at what temperature and how many before the desk calls

Back 41

100-169

3 times

Front 42

And integrity he test fail temps are between blank and blank

Back 42

0-99

Front 43

Front (Term)

How far below the top of rail should transducers be installed

Back 43

Back (Definition)

1 3/4 inch. +or- 1/8 inch

Front 44

Why would you get a hot journal nothing found alarm

Back 44

Loose connection

Front 45

How far should transducers be spaced

Back 45

24" center to center

Front 46

At what gauge are movable rails on a bridge measured at

Back 46

3/8. Fail at 3/8

Front 47

PTC was designed to prevent

Back 47

Train to train collisions overspeed on train roadway worker limits protect the train from going through a switch left in the wrong position prevent movement past limits

Front 48

List the four main components that are required for PTC

Back 48

One office two communication three locomotive four wayside

Front 49

List the three types of hardware required for communication of the PTC system

Back 49

1 radio

2 WIU

3 IMG-2

Front 50

Bnsf started prior to PTC implementation a different type of system what was it called

Back 50

ETMS electronic train management system

Front 51

Signal and track employees have four responsibilities outlined in EI 25 what are they

Back 51

Ensure that new signal and track assets are located maintain signal and track as set locations report any changes in signal and track affect locations with the CMP perform audits of signal and track assets as described in EEI 25

Front 52

On what tracks PTC have to be installed according to FRA

Back 52

More than four passenger trains a day

15,000,000 tons

any TIC and PIH

Front 53

When is a bridge considered properly locked

Back 53

When locking bar is within 1 inch of fully driven

Front 54

List the five different types of rail joints on movable bridges

Back 54

1 mitered

2 fixed easer

3 sliding easer

4 Conley 2

5 Conley 3

Front 55

List the three different types of bridges

Back 55

1. Buscule

2. Lift span

3. Swing span

Front 56

How often are bridges tested

Back 56

Once a year except for sliding easer bar that is inspected monthly

Front 57

What are the three types of end bearings used on the bridges

Back 57

1. End lifts

2. Rollers

3. Wedges

Front 58

Name four locations where it is acceptable to have the same polarity on each side of an insulated joint

Back 58

Number one DC track circuit battery to battery locations number to DC circuit Electrico track if circuit has lots of shot number three DC track relays in the center of a crossover that has to track circuits number four at insulated joints in the center of crossovers that are designed with Shunt fouling

Front 59

How often are Bond wires in the interlocking inspected

Back 59

Monthly

Front 60

How often are Bond wires outside of an interlocking inspected

Back 60

6 months

Front 61

On and M 23 how often is the clutch inspected

Back 61

2 years

Installation or modified.

Front 62

Can you use an emery cloth on a DC motor commutator

Back 62

NO

Front 63

What is the signal instruction for batteries

Back 63

10.1

Front 64

When does an ATS inductor need to be installed

Back 64

When trains travel faster than 79 mph

Front 65

How often is an ATS and Inductor gauged.

Back 65

Monthly

Front 66

ATS inductors are to be installed how many feet from the signal it governs

Back 66

50

Front 67

An inert ATS Inductor. is either always open or always closed

Back 67

Open

Front 68

ATS inductor insulation must be tested how often

Back 68

6 months

Front 69

What does a stick really prevent at a highway grade crossing

Back 69

Receding ring

Front 70

On a tunable joint coupler what part allows AC through

Back 70

Capacitor

Front 71

What will happen on a hotbox detector both polarities or backwards

Back 71

You will have the wrong temperature

Front 72

Name one gay man in 2015 signal class.

Back 72

SETH HALE
Seth Hale
Seth hale