Release air brakes - Study guides, Class notes & Summaries
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HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY GUIDE LATEST UPDATED
- Exam (elaborations) • 10 pages • 2023
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HEAVY TRUCK BRAKES MICHIGAN MECHANIC 
STUDY GUIDE LATEST UPDATED 
AN ENGINE BRAKE (JACOBS BRAKE) - ANSWER ️️ A. IS A SELF-ENERGIZING 
SERVO TYPE. 
B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. 
C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF 
PRESSURE. 
D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION STROKE 
TO RELEASE THE COMPRESSED AIR. (CORRECT AWNSER) 
IN THE SYSTEM SHOWN BELOW, THE PART AT C IS: - ANSWER ️️ A. AN 
INVERSION VALVE. (POSSIBLE CORRECT A...
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Class E driver Georgia practice exam test
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Class E driver Georgia practice exam 
test 
Modulating valve-CORRECT ANSWER-Control handle on the dashboard that may be 
used to apply spring brakes gradually 
Some vehicles have a separate air tank can be used to release the-CORRECT 
ANSWER-Spring brake 
You need at least what tread in the from tires and what thread I. Other tires-CORRECT 
ANSWER-4/32inch in front 
2/32inch in back 
Steering wheel play of what degree can make it hard to steer-CORRECT ANSWER-10 
degrees or two inches 
If m...
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HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY GUIDE exam questions and answers
- Exam (elaborations) • 27 pages • 2024
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AN ENGINE BRAKE (JACOBS BRAKE) 
A. IS A SELF-ENERGIZING SERVO TYPE. 
B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. 
C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF PRESSURE. 
D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION STROKE TO RELEASE THE COMPRESSED AIR. (CORRECT AWNSER) 
 
 
 
IN THE SYSTEM SHOWN BELOW, THE PART AT C IS: 
A. AN INVERSION VALVE. (POSSIBLE CORRECT AWNSER) 
B. A SAFETY VALVE. 
C. A MODULATOR VALVE. (NOT CORRECT AWNSER) 
D. A RELAY VALVE. 
 
 ...
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CDL Class A License Questions and Answers 100% Pass
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CDL Class A License Questions and Answers 100% Pass What is the most important reason for doing a vehicle inspection? Saftey for yourself and for other road users. 
What things should you check during a trip? 1. Instruments 2. Air Pressure Gauge 3. Temperature Gauges 4. Pressure Gauges 5. Ammeter/Voltmeter 6. Mirrors 7. Tires 8.Cargo 9. Lights 
Name 7 key steering system parts? 1. Tie Rod 2. Steering Column 3. Gear Box 
4. Resevoir 5. Steering Knuckle 6. Draglink 7. Spindle 
Name some suspension...
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CSX CONDUCTOR FINAL EXAM QUESTIONS WITH 100% CORRECT ANSWERS LATEST UPDATECSX CONDUCTOR FINAL EXAM QUESTIONS WITH 100% CORRECT ANSWERS LATEST UPDATE
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CSX CONDUCTOR FINAL EXAM QUESTIONS WITH 100% CORRECT ANSWERS LATEST UPDATE 
Who is Responsible for making Pay Claims? -ANSW- Ranking Employee or Employee to be paid 
What is the Hand Signal for Reduce Speed? -ANSW- Arm out horizontal over the track Which of the following are allowed by the Rulebook? -ANSW- Always take the safe course What is the Hand Signal for Release Air Brakes? -ANSW- Hand held overhead when Equipment is Standing
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CSX Conductor FINAL REVIEW Exam Questions With Verified Answers
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CSX Conductor FINAL REVIEW Exam 
Questions With Verified Answers 
Who is Responsible for making Pay Claims? - answerRanking Employee or Employee to be 
paid 
What is the Hand Signal for Reduce Speed? - answerArm out horizontal over the track 
Which of the following are allowed by the Rulebook? - answerAlways take the safe course 
What is the Hand Signal for Release Air Brakes? - answerHand held overhead when 
Equipment is Standing 
Who authorizes a Utility Employee to join an Assigned Crew? - an...
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AIR BRAKES TEST QUESTIONS AND ANSWERS ALREADY PASSED
- Exam (elaborations) • 31 pages • 2024
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AIR BRAKES TEST QUESTIONS AND 
ANSWERS ALREADY PASSED 
 
1) Why must air tanks be drained? 
a) For pre trip inspection purposes 
b) To check for leaks 
c) To release oil and water buildup 
d) To activate the low air pressure alarm c) To release oil and water buildup 
 
2) What is a supply pressure gauge used for? 
a) To check tire pressure 
b) To check tank pressure 
c) To activate the low pressure alarm 
d) To check for leaks b) To check tank pressure 
 
4) What are spring brakes? 
a) Hydraulic...
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ARFF test questions with correct answers
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Where should the first fire streams be directed when attacking an aircraft fire - correct answer Areas where evacuation is underway 
 
Which fixed wing aircraft component carries the majority of the aircraft fuel - correct answer Wings 
 
When may aircraft brakes and wheels reach their maximum temperatures - correct answer 20 to 30 minutes after the aircraft comes to a stop 
 
Which type of fuel's or gasoline, jet fuel & diesel - correct answer Hydrocarbons 
 
Which of the following statements ...
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CLP Test Questions & Answers 2024/2025
- Exam (elaborations) • 45 pages • 2024
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CLP Test Questions & Answers 2024/2025 
 
 
If Trailer breaks away from Tractor, what keeps air in tractor? 
 
a) Tractor Protection Valve 
b) QR Valve 
c) Self adjusting slack adjustor - ANSWERSa) Tractor Protection Valve 
 
Front wheel braking is good under all conditions. True or False? - ANSWERSTrue 
 
What is a dual air brake system? 
 
a) 2 separate air brake systems that use a single set of controls 
b) Parking brake system 
c) Emergency brake system - ANSWERSa) 2 separate air brake syste...
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CDL AIR BRAKES QUESTIONS AND ANSWERS ALREADY PASSED
- Exam (elaborations) • 18 pages • 2024
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CDL AIR BRAKES QUESTIONS AND 
ANSWERS ALREADY PASSED 
 
When your vehicle is empty, start braking: Sooner than when loaded 
 
Modern air brake systems combine three different systems. They are the service brakes, the 
parking brakes and the : Emergency brake 
 
What does the air compressor governor do? It controls when air is pumped into the air tanks 
 
Oil and water that collects in air tanks can make brakes fail. If you do not have automatic tank 
drains, when should you drain the air tanks? ...
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