Suspension and steering Latest Questions and
Answers 100% Correct
What are the various parts of a tire and how a tire is constructed?
the body and belt plies, bead, sidewall, inner liner, and tread rubber. A tire builder assembles the
inner liner and body plies around the beads before assembling it togetherwith the belt and tread.
After the tire is assembled, it is placed in a press where high temperature and chemical reaction
cure the rubber and the sidewall and tread designs are formed.
What is meant by the "aspect ratio" of a tire?
section height/ section width
List the factors that should be considered when purchasing tires.
purchase the same type and size of tire and no wider or narrower than 10 mm from the original;
it is best to purchase all four tires at the same time so that rotating the tires is not a problem.
Explain the three major areas of the Uniform Tire Quality Grading System.
tread wear, traction and temperature resistance.
What is the difference between wheel back spacing and offset?
Offset is the distance from the wheels mounting surface to its center line. Back spacing is the
distance from the wheels mounting surface to the back end of the rim.
a defective tire can cause which of the followinga. Pulling to one sideb. Erratic steeringc.
Darting or jumpingd. Any of the above
all of them
,The part of the tire that is under just the tread of a radial tire is called thea. beadb. body
(carcass ply)c. beltd. inner liner
belt
A tire is labeled 215/60R x 15 92T ; the T indicatesa. Speed ratingb. Tread wear ratingc.
Load ratingd. Temperature resistance rating
Speed rating
Tire quality grading system includesa. tread wearb. braking traction performancec.
temperatured. all of the above
all of the above
Which size lug nut would fit a metric wheel stud?a. 7/16 - 20 LHb. 1/2 x 20c. M 12 x 1.5d.
7/16 - 20RH
M12x1.5
Radial tires can cause a vehicle to pull to one side while driving. This is called "radial tire
pull" and is often due toa. the angle of the body (carcass) pilesb. tire conicityc. tread
designd. bead design
tire conicity
What precautions should the driver of a vehicle equipped with run-flat tires adhere to?a.
should not be inflated to more than 10 PSIb. Should not be driven over 50 at 55 MPH with
zero PSI of inflation pressurec. rapid cornering should be avoided if the tire has zero air
pressured. Both b and c
,both b and c
When selecting new tires for a vehicle, all are an important consideration excepta. tire
sizeb. size of the lettering on the sidewallc. speed ratingd. tire width
size of lettering on sidewall
What do the letters JJ mean in a wheel designation size labeled 14 x 7JJ?a. the offset of the
rimb. the bolt circle codec. the back spacing of the rimd. the shape of the flange area
shape of the flange area
Wheel back spacing is also calleda. rear spacingb. positive offsetc. negative offsetd. offset
rear spacing
How does the use of wheel speed sensors detect a tire with low inflation pressure?
A low tire will rotate faster than a properly inflated tire and this difference can be detected by the
wheel speed sensors.
What is the difference between faults when the TPMS warning lamp is on compared with
when it is flashing?
flashing TPMS warning light indicates that a fault has been detected. If the TPMS warning lamp
is on, this means that low tire pressure has been detected.
What is the difference between indirect and direct tire-pressure monitoring system?
Direct uses individual pressure sensors located in each wheel to measure the inflation pressure.
Indirect uses wheel speed sensors to detect differences in the speed of the wheels.
TPMS pressure sensors can be made by what manufacturer?
, Beru ,Lear, Pacific, Schrader, Siemens, TRW
5. What are the three modes of sensor operation?
Active mode, Sleep mode and Alert mode
What is the purpose of the TPMS system?a. to detect a tire that has a tire with low inflation
pressureb. to inflate a low tire if neededc. to flash a warning light if a tire with low inflation
pressure is detectedd. all of the above
detect a tire that has low inflation pressure
Technician A says that the tire pressure will drop 1 PSI for every 10 degrees drop in
temperature. Technician B says that the two type of TPMS pressure sensors are snap-in
and clamp-in. Which technician is correct?
Both
The FMVSS 138 law (TREAD Act) requires that the driver be notified if the the pressure
drops how much
25%
indirect tire-pressure monitoring system. Technician A says that it was used by some
vehicle manufacturers. Technician B says that it uses the speeds of the RF and LR tires and
compares the rotating speeds of the LF and RR tires to detect a low tire
Both
What mode a direct pressure sensor enter when the vehicle is stopped?
Sleep
Answers 100% Correct
What are the various parts of a tire and how a tire is constructed?
the body and belt plies, bead, sidewall, inner liner, and tread rubber. A tire builder assembles the
inner liner and body plies around the beads before assembling it togetherwith the belt and tread.
After the tire is assembled, it is placed in a press where high temperature and chemical reaction
cure the rubber and the sidewall and tread designs are formed.
What is meant by the "aspect ratio" of a tire?
section height/ section width
List the factors that should be considered when purchasing tires.
purchase the same type and size of tire and no wider or narrower than 10 mm from the original;
it is best to purchase all four tires at the same time so that rotating the tires is not a problem.
Explain the three major areas of the Uniform Tire Quality Grading System.
tread wear, traction and temperature resistance.
What is the difference between wheel back spacing and offset?
Offset is the distance from the wheels mounting surface to its center line. Back spacing is the
distance from the wheels mounting surface to the back end of the rim.
a defective tire can cause which of the followinga. Pulling to one sideb. Erratic steeringc.
Darting or jumpingd. Any of the above
all of them
,The part of the tire that is under just the tread of a radial tire is called thea. beadb. body
(carcass ply)c. beltd. inner liner
belt
A tire is labeled 215/60R x 15 92T ; the T indicatesa. Speed ratingb. Tread wear ratingc.
Load ratingd. Temperature resistance rating
Speed rating
Tire quality grading system includesa. tread wearb. braking traction performancec.
temperatured. all of the above
all of the above
Which size lug nut would fit a metric wheel stud?a. 7/16 - 20 LHb. 1/2 x 20c. M 12 x 1.5d.
7/16 - 20RH
M12x1.5
Radial tires can cause a vehicle to pull to one side while driving. This is called "radial tire
pull" and is often due toa. the angle of the body (carcass) pilesb. tire conicityc. tread
designd. bead design
tire conicity
What precautions should the driver of a vehicle equipped with run-flat tires adhere to?a.
should not be inflated to more than 10 PSIb. Should not be driven over 50 at 55 MPH with
zero PSI of inflation pressurec. rapid cornering should be avoided if the tire has zero air
pressured. Both b and c
,both b and c
When selecting new tires for a vehicle, all are an important consideration excepta. tire
sizeb. size of the lettering on the sidewallc. speed ratingd. tire width
size of lettering on sidewall
What do the letters JJ mean in a wheel designation size labeled 14 x 7JJ?a. the offset of the
rimb. the bolt circle codec. the back spacing of the rimd. the shape of the flange area
shape of the flange area
Wheel back spacing is also calleda. rear spacingb. positive offsetc. negative offsetd. offset
rear spacing
How does the use of wheel speed sensors detect a tire with low inflation pressure?
A low tire will rotate faster than a properly inflated tire and this difference can be detected by the
wheel speed sensors.
What is the difference between faults when the TPMS warning lamp is on compared with
when it is flashing?
flashing TPMS warning light indicates that a fault has been detected. If the TPMS warning lamp
is on, this means that low tire pressure has been detected.
What is the difference between indirect and direct tire-pressure monitoring system?
Direct uses individual pressure sensors located in each wheel to measure the inflation pressure.
Indirect uses wheel speed sensors to detect differences in the speed of the wheels.
TPMS pressure sensors can be made by what manufacturer?
, Beru ,Lear, Pacific, Schrader, Siemens, TRW
5. What are the three modes of sensor operation?
Active mode, Sleep mode and Alert mode
What is the purpose of the TPMS system?a. to detect a tire that has a tire with low inflation
pressureb. to inflate a low tire if neededc. to flash a warning light if a tire with low inflation
pressure is detectedd. all of the above
detect a tire that has low inflation pressure
Technician A says that the tire pressure will drop 1 PSI for every 10 degrees drop in
temperature. Technician B says that the two type of TPMS pressure sensors are snap-in
and clamp-in. Which technician is correct?
Both
The FMVSS 138 law (TREAD Act) requires that the driver be notified if the the pressure
drops how much
25%
indirect tire-pressure monitoring system. Technician A says that it was used by some
vehicle manufacturers. Technician B says that it uses the speeds of the RF and LR tires and
compares the rotating speeds of the LF and RR tires to detect a low tire
Both
What mode a direct pressure sensor enter when the vehicle is stopped?
Sleep
