Steering and Suspension 1

Front

Who is correct regarding the observation of tire wear patterns in identifying problems in the steering and suspension systems? Technician A says it assists in identifying steering problems, while Technician B says it assists in identifying suspension problems.

Back

Both Technician A and Technician B

Answer explanation

Paying attention to the wheels and tires can also assist in identifying problems with other vehicle systems, particularly in steering and suspension systems.

Front

The purpose for a drop center in the wheel is to allow for:

Back

tire mounting and dismounting.

Answer explanation

The drop center is used for mounting and dismounting the tire onto the rim.

Front

A customer has a P235/45ZR17 tire. What does the P stand for?

Back

Passenger

Front

A customer has a 265/75R16 sized tire. What does 265 represent?

Back

Width of the tire in milimeters

Front

A customer has a 265/75R16 sized tire. What does the 75 represent?

Back

The aspect ratio

Front

A customer has a 265/75R16 sized tire. What does the R represent?

Back

Radial tire

Front

Tire aspect ratio is being discussed. Technician A states a tire's sidewall height (from rim to tread) is a percentage of the section width of the tire. Technician B states the higher the number, the taller the sidewall; the lower the number, the lower the sidewall. Who is correct?

Back

Both technicians

Front

A customer has a 265/75R16 sized tire. What does the 16 represent?

Back

The tire or wheel diameter

Front

Who is correct regarding run-flat tires: Technician A says they may be driven indefinitely at zero inflation pressure, while Technician B says they generally have sidewall reinforcements?

Back

Technician B

Answer explanation

Run flat tires enable a driver to continue a journey within specified speed and distance (about 50 mph and at least 50 miles.). The sidewall is constructed with reinforced rubber and is thicker than in conventional tires, enabling it to carry the vehicles weight at zero pressure.

Front

Who is correct regarding tire pressure monitoring systems (TPMS): Technician A says some TPMS have a sensor mounted in each wheel rim. Technician B says some TPMS use the wheel speed sensors in the ABS system to detect tire pressure?

Back

Both Technician A and Technician B

Answer explanation

A direct TPMS sensor directly measures the tire pressure via a sensor installed in each wheel. The most prevalent indirect tire pressure monitoring systems in use today utilize the ABS wheel speed sensors to measure the difference in the rotational speed of the four wheels. A wheel that is rotating faster than the others indicates that the tire has lower pressure than the other tires.