FRA Signal Systems & Train Control 2

Question 1

Under FRA regulations, what is the maximum authorized speed for a passenger train operating on track equipped with only cab signals and no wayside signals?

Accepted Answer

110 mph

Answer

FRA regulations permit passenger trains to operate up to 110 mph on track with cab signal systems that meet the requirements of 49 CFR Part 236.

Question 2

What does a flashing lunar (white) indication on an absolute signal typically communicate to a train crew?

Accepted Answer

Proceed prepared to pass next signal at restricted speed

Answer

A flashing lunar indication is commonly used as a permissive aspect directing crews to proceed prepared to pass the next signal at restricted speed.

Question 3

According to 49 CFR Part 236, what minimum test frequency is required for the full signal system functional test on automatic block signal systems?

Accepted Answer

Annually

Answer

49 CFR Part 236 requires that full functional tests of automatic block signal systems be performed at least annually.

Question 4

Which component of a coded track circuit modulates the rail current to convey speed or signal information to the locomotive?

Accepted Answer

Code transmitter

Answer

The code transmitter interrupts or modulates track circuit current at specific rates to communicate different cab signal aspects to onboard receivers.

Question 5

A train enters a dark signal territory where wayside signals are not illuminated. What action is required?

Accepted Answer

Proceed at restricted speed, prepared to stop short of any obstruction

Answer

FRA rules and operating rules require that dark signals be treated as the most restrictive indication, typically requiring restricted speed.

(FRA) Federal Railroad Administration Certification Practice Test

(FRA) Federal Railroad Administration Certification Practice Test

FRA Signal Systems & Train Control 2