Union Pacific (Air Brakes) Exam 83
Questions With All Correct Answers
2025 Latest Update
What government agency regulates the inspection and testing of brake equipment on
railroad locomotives and cars? CORRECT ANSWERS Federal Railroad Administration
(FRA)
What rule details the safety inspection of freight cars? CORRECT ANSWERS Rule
1.33, Inspection of Freight Cars
Who can perform inspections and brake tests? CORRECT ANSWERS Qualified
Person, Qualified Mechanical Inspector, or Qualified Maintenance Person as specified
by federal regulations.
After fundamental training on freight car inspections and air brake tests, would a
trainman be considered a "Qualified Person?" CORRECT ANSWERS Yes
During the safety inspection, is an inspection on both sides of the train required?
CORRECT ANSWERS Yes
Can cars placed in a train be moved prior to a safety inspection? CORRECT
ANSWERS No
Can inspections by "Qualified Mechanical Inspectors" extend the distance a train may
travel before additional inspections and tests are required? CORRECT ANSWERS Yes
(Extended Haul Train)
What must you do before coupling air hoses together? CORRECT ANSWERS Shake
debris out of hoses and blow all condensation from locomotive brake pipe or yard air
line.
What should be done to prevent an air hose from dragging whenever the train is
moved? CORRECT ANSWERS Air hoses inspected for condition, properly coupled,
and all parts of brake equipment secured.
Unless brakes fail en route, how many cars must have operative brakes? CORRECT
ANSWERS All cars : 100%
What percentage of operative brake equipment must trains have under all
circumstances? CORRECT ANSWERS At least 85%
, Who must be notified when a car's brake equipment fails en route? CORRECT
ANSWERS Leave information for relieving crew, and notify Dispatcher or Mechanical
Help Desk.
What ITEM is referenced to determine the number of operative brakes in train?
CORRECT ANSWERS SSI, Item 2-F, Maximum Speeds:
Tons Per Operative Brake (TPOB)
How must en route car brake failure be documented ? CORRECT ANSWERS Must be
tagged, (*"Bad Order" tag*), on both sides of car and noted on train documentation.
Who is in charge while the air brake test is being conducted? CORRECT ANSWERS
Employee performing the air brake test.
Before conducting the air brake test, what must the person performing the air brake test
ensure? CORRECT ANSWERS All employees are safely positioned before beginning
test.
What is the air pressure regulating valve, also known as, the brake pipe pressure, for
yard and freight service set to? CORRECT ANSWERS 90 psi
What three methods are used to determine the air pressure at the rear of a train?
CORRECT ANSWERS Accurate gauge, E.O.T. (End-of-Train), and a distributed power
locomotive.
When an air brake test requires an inspection to determine that the brakes apply and
release on the rear car of the train, what action(s) would fulfill this requirement?
CORRECT ANSWERS When either an EOT or power consist attached to the rear of the
train indicates the following: A decrease in pressure of 5 PSI (Brakes Applied) and an
increase in pressure of 5 PSI (Brakes Released). **Application and Release Test**
What is the initial, (preferred), method to test brake pipe leakage? CORRECT
ANSWERS Air Flow Method, (AFM)
What equipment must the locomotive be equipped with, if using the Air Flow Method?
CORRECT ANSWERS AFM Indicator with a direct reading of air flow in increments no
greater than 10 CFM, (Cubic Feet per Minute)
The brake system for freight trains must be charged to what minimum requirement at
the REAR before an air test can begin? CORRECT ANSWERS 75 PSI
Using the Air Flow Method, (AFM), how many CFM cannot be exceeded for test to be
complete? CORRECT ANSWERS *60 CFM*, if air flow exceeds this measurement then
the train must be inspected for leakage.
Questions With All Correct Answers
2025 Latest Update
What government agency regulates the inspection and testing of brake equipment on
railroad locomotives and cars? CORRECT ANSWERS Federal Railroad Administration
(FRA)
What rule details the safety inspection of freight cars? CORRECT ANSWERS Rule
1.33, Inspection of Freight Cars
Who can perform inspections and brake tests? CORRECT ANSWERS Qualified
Person, Qualified Mechanical Inspector, or Qualified Maintenance Person as specified
by federal regulations.
After fundamental training on freight car inspections and air brake tests, would a
trainman be considered a "Qualified Person?" CORRECT ANSWERS Yes
During the safety inspection, is an inspection on both sides of the train required?
CORRECT ANSWERS Yes
Can cars placed in a train be moved prior to a safety inspection? CORRECT
ANSWERS No
Can inspections by "Qualified Mechanical Inspectors" extend the distance a train may
travel before additional inspections and tests are required? CORRECT ANSWERS Yes
(Extended Haul Train)
What must you do before coupling air hoses together? CORRECT ANSWERS Shake
debris out of hoses and blow all condensation from locomotive brake pipe or yard air
line.
What should be done to prevent an air hose from dragging whenever the train is
moved? CORRECT ANSWERS Air hoses inspected for condition, properly coupled,
and all parts of brake equipment secured.
Unless brakes fail en route, how many cars must have operative brakes? CORRECT
ANSWERS All cars : 100%
What percentage of operative brake equipment must trains have under all
circumstances? CORRECT ANSWERS At least 85%
, Who must be notified when a car's brake equipment fails en route? CORRECT
ANSWERS Leave information for relieving crew, and notify Dispatcher or Mechanical
Help Desk.
What ITEM is referenced to determine the number of operative brakes in train?
CORRECT ANSWERS SSI, Item 2-F, Maximum Speeds:
Tons Per Operative Brake (TPOB)
How must en route car brake failure be documented ? CORRECT ANSWERS Must be
tagged, (*"Bad Order" tag*), on both sides of car and noted on train documentation.
Who is in charge while the air brake test is being conducted? CORRECT ANSWERS
Employee performing the air brake test.
Before conducting the air brake test, what must the person performing the air brake test
ensure? CORRECT ANSWERS All employees are safely positioned before beginning
test.
What is the air pressure regulating valve, also known as, the brake pipe pressure, for
yard and freight service set to? CORRECT ANSWERS 90 psi
What three methods are used to determine the air pressure at the rear of a train?
CORRECT ANSWERS Accurate gauge, E.O.T. (End-of-Train), and a distributed power
locomotive.
When an air brake test requires an inspection to determine that the brakes apply and
release on the rear car of the train, what action(s) would fulfill this requirement?
CORRECT ANSWERS When either an EOT or power consist attached to the rear of the
train indicates the following: A decrease in pressure of 5 PSI (Brakes Applied) and an
increase in pressure of 5 PSI (Brakes Released). **Application and Release Test**
What is the initial, (preferred), method to test brake pipe leakage? CORRECT
ANSWERS Air Flow Method, (AFM)
What equipment must the locomotive be equipped with, if using the Air Flow Method?
CORRECT ANSWERS AFM Indicator with a direct reading of air flow in increments no
greater than 10 CFM, (Cubic Feet per Minute)
The brake system for freight trains must be charged to what minimum requirement at
the REAR before an air test can begin? CORRECT ANSWERS 75 PSI
Using the Air Flow Method, (AFM), how many CFM cannot be exceeded for test to be
complete? CORRECT ANSWERS *60 CFM*, if air flow exceeds this measurement then
the train must be inspected for leakage.
