FRA Track & Roadway Safety 2

Question 1

Under FRA regulations, what is the maximum allowable track gage for Class 1 track?

Accepted Answer

4 feet 9 inches

Answer

FRA regulations allow a maximum track gage of 4 feet 9 inches for Class 1 track (56A inches plus 3/4 inch tolerance).

Question 2

Which FRA track class permits the highest freight train speeds?

Accepted Answer

Class 5

Answer

Class 5 track permits freight train speeds up to 80 mph, while Class 6 and above apply to passenger-only high-speed operations.

Question 3

A track geometry defect that causes one rail to be higher than the other in a curve is called:

Accepted Answer

Cross-level deviation

Answer

Cross-level deviation refers to a difference in the heights of the two rails that exceeds allowable tolerances.

Question 4

According to 49 CFR Part 213, how often must Class 3 and 4 track be inspected by a qualified inspector?

Accepted Answer

Twice per week

Answer

Class 3 and 4 tracks must be inspected at least twice per week by a qualified track inspector.

Question 5

What is the minimum depth of ballast required under the crosstie for Class 4 track?

Accepted Answer

12 inches

Answer

FRA regulations require a minimum ballast depth of 12 inches under the base of the tie for Class 4 track.

(FRA) Federal Railroad Administration Certification Practice Test