Exam 23: Heavy-Duty Truck Axles

Technician A says that hypoid gears drive forward on the convex side of the crown gear teeth.Technician B says that hypoid gearsets require EP rated mineral base lubes only and synthetics are not yet approved.Who is correct?

Technician A says that when a full-floating axle shaft is used,the axle shaft supports the weight of the truck on the wheel end.Technician B says that full-floating axle shafts can be removed from a truck without removing the wheel.Who is correct?

Which of the following describes amboid gearing?

Which part of a truck differential carrier assembly contains a spider and four pinions?

When a differential carrier is equipped with a lube pump,where is pressurized lubricant delivered to?

Which of the following best describes how differential action takes place during cornering?

Where would a tag axle usually be located on a highway truck?

What components are directly responsible for changing the direction of powerflow by 90 degrees in a drive axle carrier?

When the differential lock of a single-reduction axle is engaged,which of the following components must rotate at the same speed?

Which ONE of the following statements is TRUE?

What is the final drive component of a truck drive axle usually known as?

When a differential carrier is described as single reduction,where does the gear reduction actually take place?

In a typical interaxle differential,what do the differential pinions rotate on?

Technician A says that lift and tag axles can both be classified as dead axles.Technician B says that all steering axles are dead axles.Who is correct?

What component is used to connect the steering knuckles on a steer axle so they move together when turning effort is applied?

Technician A says that some trailers use hollow box-section beam axles.Technician B says that some trailers use hollow round-section beam axles.Who is correct?

Where would a pusher axle usually be located on a highway truck?

Which of the following truck drive axle configurations uses two gearsets to provide both an additional gear reduction and greater torque at the drive wheels?

Which of the following is an advantage of an air-lift axle?

When a drive wheel spinout occurs,why is the interaxle differential more susceptible to damage than the differential carriers?