Aumt Brake Final Exam |Complete Questions with Graded A+ Answers
3 views 0 purchase
Course
HEAVY TRUCK BRAKES
Institution
HEAVY TRUCK BRAKES
Aumt Brake Final Exam |Complete Questions with Graded A+ Answers
Tech A says that parking brakes on drum brake vehicles use separate brake shoes for backup in an emergency. Tech B says that parking brakes on drum brake vehicles mechanically operate the standard drum brake shoes. Who iscorrect?
Te...
Aumt Brake Final Exam |Complete Questions
with Graded A+ Answers
Tech A says that parking brakes on drum brake vehicles use separate brake shoes for backup in an
emergency. Tech B says that parking brakes on drum brake vehicles mechanically operate the
standard drum brake shoes. Who iscorrect?
Tech B
Which of these drum brake systems uses servo action in both directions?
Duo-servo drum brake systems
Tech A says that brake shoe linings saturated with brake fluid from a leaky wheel cylinder can be
cleaned with brake cleaner and reused as long as they aren't worn out. Tech B says that brake shoes
should be replaced in axle sets. Who is correct?
Tech B
Tech A says that a metal-on-metal grinding noise in drum brakes generally requires replacing the
brake shoes and resurfacing or replacing the drums. Tech B says that one way to help identify
whether a problem is coming from the front or rear brakes is to test-drive the vehicle in a safe place
at a relatively low speed and lightly apply the parking brake. Who is correct?
both A and B
Tech A says that most brake drums are designed to be machined if minor surface issues are present.
Tech B says that brake drums can be reused if they are machined larger than specifications, as long as
the surface is smooth. Who is correct?
Tech A
All of the following statements with respect to a wheel cylinder and piston are true EXCEPT:
It is standard practice to hone out deep pits in the wheel cylinder bore.
The component of the drum brake system attached to the backing plate is the:
wheel cylinder
Tech A says to use an air hose to clean the backing plate of dust and contamination. Tech B says to
use a water-based cleaning solution to clean the backing plate of dust and contamination. Who is
correct?
Tech B
Among the tools used to diagnose and repair drum brake systems, the wheel cylinder piston clamp is
used to:
hold the pistons in the wheel cylinder while the brake shoes are removed.
Choose the correct statement:
The backing plate has holes stamped in it.
, Tech A says that duo-servo brake shoes are only anchored on the top. Tech B says that duo-servo
brakes typically use single-piston wheel cylinders. Who is correct?
Tech A
Tech A says that both secondary shoes should be installed on the passenger side of the vehicle. Tech B
says that the lining on the primary shoe is typically shorter in length than the lining on the secondary
shoe. Who is correct?
Tech B
When the driver releases the brake pedal, the brake shoes are withdrawn by the:
return spring
Which of the following brake tools is used to adjust brake shoes when the drum is installed?
brake spoon
Tech A says that when performing a brake job on the rear axle of an older vehicle, inspection finds
brake fluid under the dust boot; the wheel cylinder should be replaced. Tech B says that when a drum
brake return spring has failed, springs on both rear wheels need to be replaced. Who is correct?
both A and B
Tech A says that riveted lining is usually for heavy-duty or high-performance vehicles. Tech B says that
bonded lining is glued to the metal brake shoe. Who is correct?
Both A and B
Choose the correct statement:
Riveted linings are used on heavier duty or high-performance vehicles.
All of the following statements with respect to brake systems are true EXCEPT:
trailing shoes are self-energizing.
Tech A says that a cleaned-up self-adjuster can be installed on either side of the vehicle. Tech B says
that grease seals are meant to be reusable. Who is correct?
Neither A nor B
The component that prevents a direct path for water spray and dirt to enter the brake drum is the:
Labyrinth seal.
Tech A says that an antilock brake system (ABS) allows the front wheels to be steered during a panic
stop. Tech B says that ABS sensors apply or release hydraulic pressure to the wheel brake units during
ABS brake events. Who is correct?
Tech A
If we triple the speed of an object, the kinetic energy will:
increase by nine times.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ACADEMICAIDSTORE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.39. You're not tied to anything after your purchase.
