1424188
Descripción
Test por Chad Burkhart, actualizado hace más de 1 año
|
Creado por Chad Burkhart
hace más de 9 años
|
|
Pregunta 1
Pregunta
Front-wheel drive axles do not change their effective length during operation
Respuesta
- True
- False
Pregunta 2
Pregunta
2. Fixed constant velocity joints are commonly called tripod-type joints.
Respuesta
- True
- False
Pregunta 3
Pregunta
3. CV-joints are referred to by position, by function, and by design
Respuesta
- True
- False
Pregunta 4
Pregunta
Most front-wheel drive bearings are pressed onto the wheel-hub assembly
Respuesta
- True
- False
Pregunta 5
Pregunta
The Rzeppa CV-joint has 6 to 10 ball bearings
Respuesta
- True
- False
Pregunta 6
Pregunta
CV-joints are used in front-wheel drive axles.
Respuesta
- True
- False
Pregunta 7
Pregunta
The front-drive axle is connected to the drive wheel hub by a short splined drive shaft
Respuesta
- True
- False
Pregunta 8
Pregunta
CV-joints are called constant velocity joints because their rotational speed changes with the operational angle.
Respuesta
- True
- False
Pregunta 9
Pregunta
Most front-drive vehicles use two rows of ball or tapered roller wheel bearings
Respuesta
- True
- False
Pregunta 10
Pregunta
Many front-wheel drive vehicles use sealed wheel bearings in the front hubs
Respuesta
- True
- False
Pregunta 11
Pregunta
11. Part-time four-wheel drive is usually disconnected by the driver when driving on pavement due to a likelihood of a driveline windup situation
Respuesta
- True
- False
Pregunta 12
Pregunta
12. Four-wheel drive front hubs may have automatic disconnects
Respuesta
- True
- False
Pregunta 13
Pregunta
Excessive noise from the transfer case could be caused by worn bearings or internal gear damage
Respuesta
- True
- False
Pregunta 14
Pregunta
Four-wheel drive front hubs may be plain, without any disconnects
Respuesta
- True
- False
Pregunta 15
Pregunta
4WD vehicles must be stopped to be shifted into four-wheel drive
Respuesta
- True
- False
Pregunta 16
Pregunta
A part-time transfer case may provide a neutral gear position.
Respuesta
- True
- False
Pregunta 17
Pregunta
A transfer case is an extra gear box behind the main transmission
Respuesta
- True
- False
Pregunta 18
Pregunta
Full-time four-wheel drive may have an internal differential
Respuesta
- True
- False
Pregunta 19
Pregunta
19. There are a minimum of two drive shafts connected to a transfer case.
Respuesta
- True
- False
Pregunta 20
Pregunta
Most transfer cases use drive chains
Respuesta
- True
- False
Pregunta 21
Pregunta
A transfer case is mounted between the transmission and the engine
Respuesta
- True
- False
Pregunta 22
Pregunta
The Society of Automotive Engineers (SAE) recommends specifications and practices for the automotive industry and offers terms to label the various systems of 4WD and AWD
Respuesta
- True
- False
Pregunta 23
Pregunta
The inability of a part-time 4WD to be shifted out of 4WD into 2WD may be caused by driveline windup
(spline lock).
Respuesta
- True
- False
Pregunta 24
Pregunta
Universal joints or CV are used at the outer ends of the front axle shafts in a four-wheel drive vehicle to
allow normal braking action.
Respuesta
- True
- False
Pregunta 25
Pregunta
Fuel economy may be reduced by leaving front hubs locked while driving in 2WD
Respuesta
- True
- False
Pregunta 26
Pregunta
26. Chain drive in a transfer case is usually found in front-wheel drive passenger cars.
y
Respuesta
- True
- False
Pregunta 27
Pregunta
A transfer case is an extra gear box behind the main transmission.
Respuesta
- True
- False
Pregunta 28
Pregunta
AWD constantly provides power to front- and rear-drive axles
Respuesta
- True
- False
Pregunta 29
Pregunta
4WD constantly provides power to all four drive wheels.
Respuesta
- True
- False
Pregunta 30
Pregunta
4WD systems cannot be manually controlled.
Respuesta
- True
- False
Pregunta 31
Pregunta
The purpose of the interaxle differential is to compensate for differences in front-wheel and rear-wheel
speeds such as when turning a comer
Respuesta
- True
- False
Pregunta 32
Pregunta
Limited slip allows torque to be delivered to the wheel with the least traction
Respuesta
- True
- False
Pregunta 33
Pregunta
Most all-wheel-drive systems give the driver the option of 2WD or 4WD.
Respuesta
- True
- False
Pregunta 34
Pregunta
34. A viscous coupling must be used with a center differential
Respuesta
- True
- False
Pregunta 35
Pregunta
Some high-performance AWD cars use a vacuum system to lock the center or rear differential.
Respuesta
- True
- False
Pregunta 36
Pregunta
The viscous clutch cannot be repaired, so must be replaced if it is damaged
Respuesta
- True
- False
Pregunta 37
Pregunta
Diagnosis of some 4WD systems may require the use of a scan tool to access (DTCs) diagnostic trouble codes.
Respuesta
- True
- False
Pregunta 38
Pregunta
A volt-ohmmeter may be needed to help diagnose electrical or electronic 4WD systems
Respuesta
- True
- False
Pregunta 39
Pregunta
All-wheel drive vehicles do not require any sort of center differential
Respuesta
- True
- False
Pregunta 40
Pregunta
40. 4WD means the system is permanently AWD
Respuesta
- True
- False
Pregunta 41
Pregunta
When shifting from 4WD Auto to 4WD Low, the vehicle must be brought to a stop
Respuesta
- True
- False
Pregunta 42
Pregunta
Silicone oil is used in viscous couplings because it has low shearing resistance with low volumetric change
when its temperature increases.
Respuesta
- True
- False
Pregunta 43
Pregunta
The blinking frequency of the 4WD indicator lamp may be used to indicate a problem with an electronic system.
Respuesta
- True
- False
Pregunta 44
Pregunta
A slipping forward clutch may cause a delay in the shift of all forward gears
Respuesta
- True
- False
Pregunta 45
Pregunta
All transmissions have a throttle valve linkage that controls forced downshifts
Respuesta
- True
- False
Pregunta 46
Pregunta
A clunking noise during acceleration may be the result of a worn CV joint.
Respuesta
- True
- False
Pregunta 47
Pregunta
Engine performance can affect torque convertor clutch operation
Respuesta
- True
- False
Pregunta 48
Pregunta
n order to properly diagnose a transmission complaint, it is essential that you gather as much information from the customer as possible.
Respuesta
- True
- False
Pregunta 49
Pregunta
49. Driving a vehicle with a very low level of ATF is not harmful to the transmission
Respuesta
- True
- False
Pregunta 50
Pregunta
It is not important to use the recommended ATF in the transmission
Respuesta
- True
- False
Pregunta 51
Pregunta
51. Front-drive axle CV-joints must accommodate changes in .
Respuesta
-
effective length of drive axle
-
steering wheels left to right
-
suspension height
-
all of the above
Pregunta 52
Pregunta
To find problems in independent suspension drive axles, one must check for
Respuesta
-
excessive looseness
-
lack of lubrication
-
damaged boots
-
all of the above
Pregunta 53
Pregunta
53. Constant velocity universal joints that include a slip joint may be
Respuesta
-
double offset or cross groove design
-
tripod design
-
both of the above
-
none of the above
Pregunta 54
Pregunta
54. CV-joints are used in late model cars. Technician A says they are called constant velocity joints because their rotational speed does not change with their operational angle. Technician B says all FWD and some 4WD vehicles use CV-joints on the front-drive axles. Who is correct?
Respuesta
-
A only
-
B only
-
both A and B
-
neither A nor B
Pregunta 55
Pregunta
55. All front-wheel drive automobiles have CV-joints. Technician A says most use a fixed inboard joint. Technician B says all use at least one plunging joint on each axle. Who is correct?
Respuesta
-
A only
-
B only
-
both A and B
-
A nor B neither
Pregunta 56
Pregunta
56. Technician A says the most commonly used type of CV-joint is the ball type. Technician B says it is the Rzeppa type. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH A AND B
-
NEITEHR
Pregunta 57
Pregunta
Technician A says the inner race of the Rzeppa CV-joint is connected to the drive axle. Technician B says the
ball bearings rotate on a trunnion within the outer housing. Who is correct
Respuesta
-
A ONLY
-
B ONLY
-
BOTH A AND C
-
NEITHER
Pregunta 58
Pregunta
Technician A says the protective boot on a CV-joint prevents contamination of the joint's lubricant. Technician B says the boot prevents the joint's lubricant from being lost. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH A AND C
-
NEITHER
Pregunta 59
Pregunta
Technician A says most inner CV-joints are of the tripod design. Technician B says the tripod design CV-joint uses needle bearings. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH A AND B
-
NEITHER
Pregunta 60
Pregunta
The Rzeppa CV-joint has ball bearings.
Respuesta
-
3 to 6
-
6 to 10
-
10 to 12
-
13 to 15
Pregunta 61
Pregunta
The transfer case 2WD position
Respuesta
-
engages the four-wheel drive
-
ocks the transfer case differential
-
prevents off-road driving
-
should be used for dry pavement driving
Pregunta 62
Pregunta
62. Technician A says when the transfer case is in low, the overall gear ratio is numerically increased. Technician B says when the transfer case is in the high position, the vehicle operates in an overdrive mode due to the decrease in torque multiplication. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH A AND C
-
NEITHER
Pregunta 63
Pregunta
63. Universal joints or CV joints are used at the outer ends of the front axle shafts of a four-wheel drive vehicle
to allow normal .
Respuesta
-
a. spring action
-
b. steering action
-
braking action
-
none of the above
Pregunta 64
Pregunta
Excessive noise from the transfer case could be caused by .
Respuesta
-
low lubricant level
-
misaligned drive shafts
-
misaligned drive shafts
-
all of the above
Pregunta 65
Pregunta
Technician A says 4WD mode in part-time four-wheel drive systems is designed to be used only when driving off-road or on slippery surfaces. Technician B says 4WD units are dangerous on bad roads. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH A AND B
-
NEITHER
Pregunta 66
Pregunta
Technician A says seals that are incorrectly installed can cause a leak in a transfer case. Technician B says noises in a transfer case or a differential can be caused by bad bearings. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH A AND C
-
NEITHER
Pregunta 67
Pregunta
Technician A says if leakage is noticed in the steering damper, a new seal can be installed. Technician B says
a light film of fluid leakage is acceptable from the steering damper. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 68
Pregunta
Technician A says incorrect lift modifications are a common cause of abnormal handling or vibrations.
Technician B says the abnormal noises can be caused by altered drive shaft operating angles due to lift modifications. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 69
Pregunta
Technician A says an improperly adjusted shift linkage can cause problems in the shift mode sleeve. Technician B says a worn-out engine can cause problems in the shift mode sleeve. Who is correc
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 70
Pregunta
Technician A says a possible cause for a transfer case jumping out of gear is improperly adjusted shift
" linkage. Technician B says a possible cause for a transfer case jumping out of gear is a worn or broken
sliding clutch. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 71
Pregunta
Technician A says a transfer case is an extra gear box on the back of a transmission. Technician B says a transfer case is mounted between the engine and the transmission. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 72
Pregunta
Technician A says the purpose of a transfer case is to transfer power to an additional drive axle. Technician B
says most transfer cases have two speeds that affect the overall gear ratio of the vehicle. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 73
Pregunta
Part-time four-wheel drive
Respuesta
-
must be disconnected when driving off-road
-
cannot be disconnected by th e driver
-
is usually disconnected when driving on pavement
-
must be disconnected by a technician
Pregunta 74
Pregunta
Four-wheel drive front hubs may .
Respuesta
-
be plain, without any disconnects
-
have automatic disconnects
-
have manual disconnects
-
all of the above
Pregunta 75
Pregunta
Technician A says a vacuum motor may be used to engage 4WD. Technician B says some pickups and SUVs have a viscous clutch in an AWD transfer case. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 76
Pregunta
Technician A says 4WD mode in part-time four-wheel drive systems is designed to be used only when driving off-road or on slippery surfaces. Technician B says 4WD units are dangerous on bad roads. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITEHR
Pregunta 77
Pregunta
Technician A says if leakage is noticed in the steering damper, a new seal can be installed. Technician B says a light film of fluid leakage is acceptable from the steering damper. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 78
Pregunta
78. Technician A says an improperly adjusted shift linkage can cause problems in the shift mode sleeve. Technician B says a worn-out engine can cause problems in the shift mode sleeve. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 79
Pregunta
Technician A says since petroleum jelly is sticky, it is often used to help hold parts when a transfer case is reassembled. Technician B says petroleum jelly quickly melts and mixes with the lubricant, which is why it is used to hold parts on reassembly. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITEHR
Pregunta 80
Pregunta
Technician A says 4WD systems are used in cars not really intended for off- road operation. Technician B
says AWD systems are used in some four-wheel drive trucks. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 81
Pregunta
Technician A says part-time four-wheel drive systems are manually operated. Technician B says part-time
four-wheel drive systems will have a variable torque split (front to rear), so may be driven on dRy pavement in 4WD. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 82
Pregunta
Technician A says the driver has the ability to select 2WD with an AWD system. Technician B says the
driver has the ability to select 2WD with a full-time four-wheel drive system. Who is correct?
Respuesta
-
A ONLY
-
B NEITEHR
-
BOTH
-
NEITEHR
Pregunta 83
Pregunta
Technician A says a transfer case may have a limited-slip, viscous-type clutch assembly. Technician B says a
transfer case may have a multiple plate clutch assembly for limited slip. Who is correct?
Respuesta
-
A ONLY
-
B ONLY
-
BOTH
-
NEITHER
Pregunta 84
Pregunta
Technician A says all-wheel drive vehicles spread the tractive effort to all four driving wheels. Technician B says all-wheel drive vehicles bias the driving torque to the axle that has the traction only when needed. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITEHR
Pregunta 85
Pregunta
Technician A says drive line windup on a 4WD vehicle is most evident on dry pavement. Technician B says
drive line windup on a 4WD vehicle is most evident on wet pavement. Who is correct?
Respuesta
-
A
-
B
-
NEITHER
-
BOTH
Pregunta 86
Pregunta
86. When discussing an AWD system that is electronically controlled, Technician A says an electronic module is used to pulse the duty solenoid on and off. Technician B says the duty solenoid is pulsed on and off very rapidly. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITEHR
Pregunta 87
Pregunta
Technician A says viscous clutch biasing sends torque to the wheel with the least traction. Technician B says it will send torque to the wheel with the greatest traction. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITHER
Pregunta 88
Pregunta
When the transfer case is in the lock position, the vehicle should be .
Respuesta
-
on dry pavement
-
traveling at highway speeds
-
on a limited traction surface
-
all of the above
Pregunta 89
Pregunta
Technician A says electronically controlled systems may use sensor inputs to control the center differential for front-rear torque bias. Technician B says the Porsche PTM system uses an electronically controlled motor in the transfer case. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITHER
Pregunta 90
Pregunta
Technician A says all-wheel drive vehicles spread the tractive effort to all four driving wheels. Technician B says all-wheel drive vehicles bias the driving torque to the axle that has the traction only when needed. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITEHR
Pregunta 91
Pregunta
Technician A says delayed shifts using a TV assembly may be the result of poor engine performance. Technician B says low engine vacuum will cause a vacuum modulator to sense a load condition, causing delayed and harsh shifts. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITEHR
Pregunta 92
Pregunta
says leaking hydraulic circuits or sticking spool valves in the valve body can result in delayed shifts or slippage. Technician B says worn planetaiy gear set members can cause delayed shifting. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITHER
Pregunta 93
Pregunta
Technician A says hydraulic problems, not linkage problems, cause delayed or missed shifts. Technician B says any engine movement can change the effective length of the shift and throttle cables and can affect the engagement of gears. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITEHR
Pregunta 94
Pregunta
Technician A says throttle pedal movement or engine vacuum is an indicator of engine load. Technician B
says changes in hydraulic pressure inside the transmission or transaxle are a result of engine load changes. Who is correct?
Respuesta
-
A
-
B
-
BOTH
-
NEITEHR
Pregunta 95
Pregunta
Which of the following does not sense engine vacuum?
Respuesta
-
Manifold absolute pressure sensor
-
Throttle position sensor
-
Pressure regulator valve
-
Modulator valve
-
b or c
Pregunta 96
Pregunta
Technician A says electrical switches are used to open and close electrical circuits. Technician B says
electrical switches are used to control the operation of other devices. Who is correct?
Respuesta
-
a
-
b
-
both
-
neither
Pregunta 97
Pregunta
Technician A says identification numbers identify only the manufacturer and assembly date of the
transmission or transaxle. Technician B says the shape of the oil pan is the only positive way to identify the exact design of the transmission or transaxle. Who is correct?
Respuesta
-
a
-
b
-
both
-
neither
Pregunta 98
Pregunta
Which of the following is true of solenoids?
Respuesta
-
They convert electrical energy to mechanical energy
-
They control the flow of hydraulic fluid.
-
They control power flow
-
They control shift points
Pregunta 99
Pregunta
Which of the following is true of the VIN?
Respuesta
-
a. It will be found on a sticker
-
b. It will have barcoded information.
-
c. It will include build date, part number, and exact model.
-
d. All of the above
-
e. None of the above n
Pregunta 100
Pregunta
Technician A says it is necessary to identify any and all non-factory installed electrical accessories when inspecting a vehicle. Technician B says non-factory installed electrical accessories may cause the system to not operate properly. Who is correct?
Respuesta
-
a
-
b
-
both
-
neither
Pregunta 101
Pregunta
Technician A says that any electronic problems, as indicated by fault codes retrieved by a scan tool, should
be corrected before continuing with the diagnosis. Technician B says that the electronic problems will be corrected when the transmission repair is completed. Who is correct?
Respuesta
-
a
-
b
-
both
-
neither
Pregunta 102
Pregunta
Technician A says that the temperature of the transmission is not important when checking ATF levels. Technician B says that all transmissions and transaxles have a dipstick. Who is correct?
Respuesta
-
a
-
b
-
both
-
neither
Pregunta 103
Pregunta
. Technician A says that metal shavings collected on permanent magnet-style speed sensors may indicate an internal transmission problem. Technician B says that if the fluid is clean and only contains a small amount of residue, the transmission problem is most likely caused by something external to the transmission. Who is correct?
Respuesta
-
a
-
b
-
both
-
neitehr
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