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SUSPENSION AND STEERING STUDY GUIDE
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SUSPENSION AND STEERING STUDY GUIDE
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SUSPENSIONAND STEERING
STUDY GUIDE
D - Answers -The height of the vehicle center of gravity is determined by the _____ of
the center of mass above the road surface.
A. width
B. Length
C. Depth
D. height
A - Answers -Rust can often cause the wheel to become stuck to the axle flange or hub
due to the snug fit between the wheel and hub (or axle flange). When this happens, tech
A says to first notify your supervisor and seek assistance. Tech B says to first use an
oxyacetylene torch to loosen the rusts grip on the parts. Who is correct?
Both - Answers -Most vehicle lug nuts and studs are right-hand threaded, which means
they tighten when turned clockwise. However, some vehicle manufacturers use left-
hand studs and lug nuts on the passenger side wheels. Tech A says this is because
some manufacturers believe left-hand lug nuts are less likely to loosen up when used to
the right (passenger) side of the vehicle. Tech B says this is important to remember so
lug nuts are not sheared off when trying to remove them. Who is correct?
D - Answers -During cornering, centrifugal force acts on a vehicle to produce:
A. Oversteer
B. Slip angle
C. Understeer
D. Side force
A - Answers -The tire must be an exact fit on the wheel to:
A. All answers are correct
, B. Ensure the tire and wheel will form a perfect seal to prevent air leakage
C. Prevent the tire from turning on the rim.
D. Transfer all the forces between the tire and wheel without slipping or chafing.
C - Answers -The purpose for a drop center in the wheel is to allow for:
A. Better heat dissipation.
B. Cooler looking wheels.
C. Tire mounting and dismounting.
D. The exact size.
B - Answers -Why do most wheels have holes in the wheel flange?
A. Holes allow for additional fasteners if needed.
B. Holes allow for air circulation and cooling.
C. Holes help balance the wheel.
D. Holes increase the strength of the wheel.
Neither - Answers -Tech A says that tires on most passenger vehicles are solid rubber
tires. Tech B says that tires on forklifts are always pneumatic (air-inflated) tires. Who is
correct?
A - Answers -Tech A says that all lug nuts must be torqued to specifications. Tech B
says that lug nuts can be tightened in any random sequence. Who is correct?
Both - Answers -Tech A says that observing tire wear patterns can assist in identifying
problems in steering system. Tech B says that observing tire wear patterns can also
assist in identifying problems in the suspension system. Who is correct?
C - Answers -The UTQG tire grading system, grades tires on all the following except:
A. Temperature grade
B. Tread wear grade
C. Toughness grade.
D. Traction grade
Both - Answers -When a modern passenger car tire's construction is examined, several
features are obvious. Tech says these features are the cords, inner liner, and tread.
Tech B says these features are the bead, plies, and sidewall. Who is correct?
Neither - Answers -Tech A says run-flat tires may be driven indefinitely at zero inflation
pressure. Tech B says run-flat tires generally have sidewall reinforcements. Who is
correct?
D - Answers -Which of the following is true?
A. Modern tires are built with single ply or cord under the thread.
B. Tire sidewalls are a special type of tire with tread.
C. Tire beads are small bumps in the tread to increase traction on slippery pavement.
D. Radial tires are used on virtually all modern cars.
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