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2024 trucking rodeo test Questions and Answers $17.99   Add to cart

Exam (elaborations)

2024 trucking rodeo test Questions and Answers

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  • 2024 trucking rode
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  • 2024 Trucking Rode

2024 trucking rodeo test Questions and Answers

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  • September 11, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • 2024 trucking rode
  • 2024 trucking rode
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leonardmuriithi061
2024 trucking rodeo test Questions and Answers

When a truck has no air pressure in its tanks, which warning devices are activated
when the ignition key is turned on? - ANSWER A buzzer, a dash gauge and a red
light

What legislation mandates every required standard of a highway truck air brake
system? - ANSWER FMVSS 121

If a truck is FMVSS 121 compliant, which of the following air reservoirs must be
incorporated into the air brake circuit? - ANSWER Supply, primary and secondary
tanks

In a truck air brake system which sub circuit is primarily responsible for actuating
front axle service brakes when the system is functioning normally? - ANSWER
Secondary circuit

When a FMVSS 121 compliant tractor trailer combination is moving down the
highway at a speed of 50 mph, which circuit must be charged with air? - ANSWER
Hold off circuit

What best describes the functions of a tractor protection valve? - ANSWER
Pressure protects the tractor air supply in the event of loss of pressure in a trailer
Routes trailer supply air and service application signal to the trailer pneumatic
circuits
Blocks service signal air to the trailer until trailer air supply is activated

If you have yo make an adjustment to air system cut off pressure where should the
adjustment be made? - ANSWER The governor

How is the relay section of an FMVSS 121 compliant duel circuit foot valve activated
when the air brake is functioning properly? - ANSWER Pneumatically

What is the function of a quick release gladhand when used? - ANSWER Speeds
service brake release timing

What best accounts for brake feel in an air brake system? - ANSWER Resistance
of application pressure versus for pressure

What is the potential energy of an air brake system? - ANSWER Compressed air

When a tractor spring brake assembly is charged with air on both its service and
hold off chambers what results is known as? - ANSWER Compounding

What is true about hold off pressure in current truck and trailer air brake systems? -
ANSWER Its regulated at 90 psi.

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