Front

What is the device that connects front wheels to the axle?

Back

Steering knuckle

Answer explanation

The steering knuckle connects the front wheels to the axle, allowing for steering and suspension movement. It plays a crucial role in the vehicle's steering mechanism, unlike the other options listed.

Front

What type of axle is powered and can move the vehicle?

Back

Live axle

Answer explanation

A live axle is a powered axle that drives the vehicle's wheels, allowing movement. In contrast, a dead axle does not provide power, while steering and pusher axles serve different functions.

Front

__________ are used to limit the turning angle of the steering knuckle. Select one: Steering shims, Steering stops, Steering axles, Straight kingpins

Back

Steering stops

Answer explanation

Steering stops are components that limit the turning angle of the steering knuckle, preventing excessive rotation and potential damage. They ensure safe maneuverability by controlling the steering range.

Front

Where are pusher axles mounted? Select one: To the rear of the tag axle, In front of the lift axle, To the rear of the drive axles, In front of the drive axles

Back

In front of the drive axles

Answer explanation

Pusher axles are specifically designed to be mounted in front of the drive axles. This positioning helps distribute weight effectively and improves traction, making 'In front of the drive axles' the correct choice.

Front

By lowering the tag axle, this ________ the weight that the other axles are carrying.

Back

Reduces

Answer explanation

By lowering the tag axle, the load is distributed more evenly, which reduces the weight that the other axles must carry. Therefore, the correct answer is 'Reduces'.

Front

When turning to the left, the right side steer tire tilts __________.

Back

Inward at the top

Answer explanation

When turning left, the right side steer tire tilts inward at the top due to the steering geometry. This inward tilt helps maintain contact with the road and improves handling during the turn.

Front

Which of the following statements is incorrect about caster?
- Caster is viewed from the side of a vehicle.
- Caster is not a tire-wearing angle.
- Caster is the forward or rearward tilt of the steering axis.
- There can be ±1 degree difference in caster angle between left and right side.

Back

There can be ±1 degree difference in caster angle between left and right side.

Answer explanation

The statement about a ±1 degree difference in caster angle is incorrect. Ideally, caster angles should be equal on both sides for proper handling, and any significant difference can affect vehicle stability.

Front

A typical drag link's __________ length is critical to maintain the same number or turns from center to the steering stops.

Back

Center to center

Answer explanation

The correct answer is 'Center to center' because this length ensures that the steering mechanism has equal turns from the center position to the steering stops, maintaining proper alignment and handling.

Front

Who is correct regarding the definitions of neutral and positive frame angles in vehicles? Technician A says that a neutral frame angle is the condition where the vehicle’s rear is higher than the front. Technician B says that a positive frame angle is the condition where the vehicle’s rear is lower than the front.

Back

Neither Technician A nor Technician B

Answer explanation

Neither Technician A nor Technician B is correct. A neutral frame angle means the vehicle is level, while a positive frame angle indicates the rear is higher than the front, not lower.

Front

When the vehicle rolls down the road, __________.

Back

The tires toe-out

Answer explanation

When a vehicle rolls down the road, the tires tend to toe-out due to the forces acting on them, which helps improve stability and handling. This is why the correct answer is 'The tires toe-out'.