Chapter 9 - Railcar Extrication Flashcards Preview

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Flashcards in Chapter 9 - Railcar Extrication Deck (21)
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1
Q

The most common type of locomotives are:

A

Diesel only
Diesel/Electric
Electric Only
Steam

2
Q

Diesel/Electric locomotives can weigh from ___ tons up to _______ tons, develop as much as _____ horsepower, and carry between ____ to _____ gallons of diesel fuel inside or under the locomotive. Locomotives have a top speed of up to ___ mph.

A

130 up to 175,000 tons
4,250 horsepower
1,800 to 2,200 gallons
125 mph

3
Q

Electric Locomotives operate with a power from ______ volt AC to ______ volt AC catenary system of wires suspended about the tracks.

A

12,000

25,000

4
Q

The third rail carries ___ volts DC and must be avoided by all but trained Amtrak personnel.

A

600

5
Q

Depending on the layout of the locomotive passenger cars, they can seat anywhere from ___ to ___ passengers

A

44 to 85

6
Q

All Amtrak cars are equipped with ___-volt electrical circuits charges by power from the locomotive, commonly called “_______”.

A

480-volt

Head-End Power

7
Q

Most Amtrak cars have exterior skins made of ____-inch stainless steel.

A

3/32-inch

8
Q

Only trained Amtrak crew members can safely perform the following actions:

A
> De-Energize head-end power
> Lower locomotive pantographs
> Disengage third-rail shoes
> Ground electrical equipment when required
> Remove or install power cables
9
Q

Locomotive walls are made from ___ thick steel, the roof is made from ___ inch steel.

A

3/8 inch

1/8 inch

10
Q

The pantograph mounted on top of the locomotive maintains contact with the trolley wires to conduct ______ volts to ______ volts AC, ___ Hz, to the locomotive motors.

A

12,000 to 25,000 volts AC

25 Hz

11
Q

Caternary poles are ___-inch square steel H-sections weighing ___ pounds per foot. They range from ___ to ____ feet.

A

14-inch
84 lbs
70 to 170 feet

12
Q

All wires and hardware of the caternary system are energized to ______ volts

A

12,000 volts

13
Q

Do not permit any metallic object within __ feet or the ______ volt caternary system or the _____ volt signal power lines.

A

3 feet
12,000 volt
6,900 volt

14
Q

Do not permit and metallic object with __ feet of the _______ volt transmission lines.

A

8 ft

138,000 volt

15
Q

Third-rail electrical-power distribution systems generally distribute ___-volt DC current.

A

600-volt

16
Q

Diesel/Electric locomotives can carry up to _____ gallons of diesel fuel in tanks located inside the locomotive or underneath it.

A

2,200 gallons.

17
Q

to shut off the fuel supply to the engine, push and hold the emergency fuel shutoff for __ to ___ seconds. The engine will stop running within about ____ minute.

A

8 to 10 seconds.

one minute

18
Q

Unless affected by slope or similar environmental influences, a railcar on its side is ________.

A

Very Stable

19
Q

Because a railcar is top heavy when resting on its roof, this position can be ________.

A

Very unstable

20
Q

Because the majority of the weight of most railcars is concentrated in the lower third of their structure, railcars that are upright and still on their tracks are ________.

A

Relatively stable.

21
Q

_______ is a polycarbonate plastic ____ times stronger than glass and ___ times stronger than Plexiglas

A

Lexan
250 times
30 times