HEAVY VEHICLE DRIVE TRAIN
SOLVED TO PASS!!
Which of the following driving practices can cause abnormal wear to clutch
components? - ANSWERstanding starts in high gear ratio, riding the clitch pedal,
and using the clutch to hold a truck on an incline.
what is the function of the clutch brake? - ANSWERsmooth shifts into first and
reverse
what is the function of coaxial springs in a clutch friction plate? -
ANSWERdampening of driveline torsionals, dampening of engine torsionals,
reducing clutch chatter
what is generally considered to be the major cause of clutch failure? -
ANSWERexcess heat
what is recommended advice for selecting the appropriate starting gear? -
ANSWERselect a gear ratio that allows you to start moving with the engine at idle
rpm
technician A says that clutch shaft pilot bearings should be replaced each time a
clutch pack is replaced. Technician B says that the pilot bearing should always be
inspected when a clutch pack is replaced. who is correct? - ANSWERTech a
when a gear with 14 teeth drives a gear with 21 teeth, how will speed and torque
output be changed? - ANSWERtorque increases, speed decreases
if a drive gear is required to rotate a driven gear in the same direction of rotation,
which of the following is a requirement? - ANSWERidler gear gear is required
between the drive and driven gears.
when one gear is in mesh and turning another, which of the following describes type
of contact that results? - ANSWERsliding action and rolling action
a gear of 12 inches (305 mm) in diameter is driving a second of 24 inches (610mm)
in diameter. Which of the following will result from the driven gear? -
ANSWERincreased torque, reduced speed
when the output speed exceeds the input speed of a gear set, this is known as -
ANSWERover drive
what is the function of synchronizers in a truck transmission? - ANSWERbring the
rotational speed of two rotating components to a single speed, locks two rotating
compenents together, and reduce gear clashing
SOLVED TO PASS!!
Which of the following driving practices can cause abnormal wear to clutch
components? - ANSWERstanding starts in high gear ratio, riding the clitch pedal,
and using the clutch to hold a truck on an incline.
what is the function of the clutch brake? - ANSWERsmooth shifts into first and
reverse
what is the function of coaxial springs in a clutch friction plate? -
ANSWERdampening of driveline torsionals, dampening of engine torsionals,
reducing clutch chatter
what is generally considered to be the major cause of clutch failure? -
ANSWERexcess heat
what is recommended advice for selecting the appropriate starting gear? -
ANSWERselect a gear ratio that allows you to start moving with the engine at idle
rpm
technician A says that clutch shaft pilot bearings should be replaced each time a
clutch pack is replaced. Technician B says that the pilot bearing should always be
inspected when a clutch pack is replaced. who is correct? - ANSWERTech a
when a gear with 14 teeth drives a gear with 21 teeth, how will speed and torque
output be changed? - ANSWERtorque increases, speed decreases
if a drive gear is required to rotate a driven gear in the same direction of rotation,
which of the following is a requirement? - ANSWERidler gear gear is required
between the drive and driven gears.
when one gear is in mesh and turning another, which of the following describes type
of contact that results? - ANSWERsliding action and rolling action
a gear of 12 inches (305 mm) in diameter is driving a second of 24 inches (610mm)
in diameter. Which of the following will result from the driven gear? -
ANSWERincreased torque, reduced speed
when the output speed exceeds the input speed of a gear set, this is known as -
ANSWERover drive
what is the function of synchronizers in a truck transmission? - ANSWERbring the
rotational speed of two rotating components to a single speed, locks two rotating
compenents together, and reduce gear clashing
