CDC Set 2 Vol. 1
- 1.
What is meant by the axis on a gear?
- A.
A smaller gear that meshes with a larger gear wheel or toothed rack.
- B.
The centerline around which a gear, wheel, or shaft rotates.
- C.
The large diameter ring where the gears are attached.
- D.
The circumference around which a gear rotates.
Correct Answer
B. The centerline around which a gear, wheel, or shaft rotates. -
- 2.
What does the term drive member refer to in a gear set?
- A.
Output member
- B.
Input member
- C.
Held member
- D.
Ring gear
Correct Answer
B. Input member -
- 3.
The direct drive gear ratio is
- A.
0.70:1
- B.
1:1
- C.
1.70:1
- D.
3:1
Correct Answer
B. 1:1 -
- 4.
What term refers to force that can perform work?
- A.
Torque
- B.
Power
- C.
Work
- D.
Speed
Correct Answer
A. Torque -
- 5.
What component is not part of a simple planetary gear set?
- A.
Sun gear
- B.
Internal ring gear
- C.
Planet pinion gear
- D.
Countershaft gear
Correct Answer
D. Countershaft gear -
- 6.
What component drives the input shaft, which in turn drives the forward clutch cylinder, in neutral operation of a typical automatic transmission?
- A.
Synchronizer
- B.
One-way clutch
- C.
Torque converter turbine
- D.
Nothing, the input shaft is not turning in neutral
Correct Answer
C. Torque converter turbine -
- 7.
What gear operation is achieved when the rear carrier is held and causes the rear pinions to drive the output ring gear in the opposite direction?
- A.
First
- B.
Third
- C.
Neutral
- D.
Reverse
Correct Answer
D. Reverse -
- 8.
The most common way to drive the hydraulic pump in an automatic transmission is
- A.
Off the torque converter drive hub
- B.
Off the transfer case chain
- C.
By a one-inch hex shaft
- D.
By a two-inch hex shaft
Correct Answer
A. Off the torque converter drive hub -
- 9.
Which pump is not a typical automatic transmission-pump type?
- A.
Rotor
- B.
Vane
- C.
Lobe
- D.
Gear
Correct Answer
C. Lobe -
- 10.
What type of valve increases hydraulic pressure during certain operating conditions like acceleration in an automatic transmission?
- A.
Boost valve
- B.
Surge valve
- C.
Pressure relief valve
- D.
Pressure regulating valve
Correct Answer
A. Boost valve -
- 11.
What automatic transmission valve circuit transforms engine load into a pressure signal used to control the shift valves?
- A.
Governor
- B.
Throttle
- C.
Manual
- D.
Boost
Correct Answer
B. Throttle -
- 12.
As vehicle speed increases, governor pressure in a transmission valve body
- A.
Increases
- B.
Decreases
- C.
Stays the same
- D.
Changes to throttle pressure
Correct Answer
A. Increases -
- 13.
What type of signal is very predictable on a vacuum modulator system?
- A.
Boost
- B.
Throttle
- C.
Governor
- D.
Accumulator
Correct Answer
B. Throttle -
- 14.
What automatic transmission hydraulic pressure is used to time an automatic upshift based on vehicle speed?
- A.
Boost
- B.
Throttle
- C.
Governor
- D.
Accumulator
Correct Answer
C. Governor -
- 15.
The function of a stator in a torque convertor is to multiply torque by
- A.
Keeping the turbine turning clockwise
- B.
Keeping the impeller turning counterclockwise
- C.
Changing the direction of fluid flow from the center of the impeller back to the turbine
- D.
Changing the direction of fluid flow from the center of the turbine back to the impeller
Correct Answer
D. Changing the direction of fluid flow from the center of the turbine back to the impeller -
- 16.
The inner race of the torque converter stator's one-way clutch is mounted on
- A.
The impeller
- B.
The turbine flange
- C.
A journal on the transmission input shaft
- D.
A splined support on the transmission pump housing
Correct Answer
D. A splined support on the transmission pump housing -
- 17.
When does the torque multiplication phase occur in a torque convertor?
- A.
When fluid is redirected back to the impeller blades changing the direction of flow counterclockwise.
- B.
When fluid leaving the turbine vanes strikes the concave (front) side of the stator vanes.
- C.
When fluid leaving the stator meets up with the convex (back) side of the impeller.
- D.
While the stator is directing fluid flow in a clockwise direction.
Correct Answer
B. When fluid leaving the turbine vanes strikes the concave (front) side of the stator vanes. -
- 18.
When does the greatest amount of torque converter stall occur?
- A.
During direct-drive gear range.
- B.
During the overdrive gear range.
- C.
When the engine drives the impeller at the maximum speed without moving the turbine.
- D.
When the engine drives the turbine at the maximum speed without moving the impeller.
Correct Answer
C. When the engine drives the impeller at the maximum speed without moving the turbine. -
- 19.
What component sometimes controls the hydraulic application of the clutch piston in a hydraulic lockup torque converter?
- A.
Boost valve
- B.
Servo valve
- C.
Engine computer
- D.
Dual-flow controller
Correct Answer
C. Engine computer -
- 20.
The function of a transmission band is to
- A.
Keep a planetary member from turning
- B.
Open or close passages in a valve body
- C.
Allow a planetary member to turn
- D.
Redirect fluid flow to the servos
Correct Answer
A. Keep a planetary member from turning -
- 21.
What automatic transmission component is linked to a band and serves as a hydraulic actuator for that band?
- A.
Servo
- B.
Y-link
- C.
Valve body
- D.
Roto-plenum
Correct Answer
A. Servo -
- 22.
In an automatic transmission, the multi-disc friction plates are usually connected to a planetary member through
- A.
Anchor bolts
- B.
Mechanical linkage
- C.
Splines at the plate's center
- D.
Splines at the plate's outer circumference
Correct Answer
C. Splines at the plate's center -
- 23.
What components are used to drive, as well as hold, planetary gear set members in an automatic transmission?
- A.
Multiple-disc clutches
- B.
Centrifugal clutches
- C.
Single strip bands
- D.
Dual strip bands
Correct Answer
A. Multiple-disc clutches -
- 24.
In an automatic transmission, the check ball in the multiple-disc clutch housing is used to
- A.
Ensure adequate lubrication of the clutch plates
- B.
Prevent bleed-down of the cylinder during rotation
- C.
Allow oil to exit the cylinder bore when not applied
- D.
Prevent oil from entering the cylinder during high housing rpm
Correct Answer
C. Allow oil to exit the cylinder bore when not applied -
- 25.
What type of automatic transmission clutch consists of a hub and a drum separated by a number of figure-eight-shaped metal pieces?
- A.
Roller clutch
- B.
One-way sprag clutch
- C.
Ball-and-wedge clutch
- D.
Vane-to-roller-type clutch
Correct Answer
B. One-way sprag clutch -
- 26.
What type of filter is not a common automatic transmission type?
- A.
Cotton
- B.
Screen
- C.
Paper
- D.
Felt
Correct Answer
A. Cotton -
- 27.
A torque converter clutch will not apply when the
- A.
Engine coolant is at minimum operating temperature.
- B.
Vehicle speed is above minimum lockup speed.
- C.
Throttle is partially open.
- D.
Throttle is closed.
Correct Answer
D. Throttle is closed. -
- 28.
What shift program, or mode, in an automatic transmission will upshift the transmission at lower vehicle speeds and delay throttle-induced downshifts?
- A.
Sport
- B.
Power
- C.
Economy
- D.
2WD
Correct Answer
C. Economy -
- 29.
What is indicated if you find a small amount of metal debris on the magnet of a manual transmission case?
- A.
This is normal
- B.
Synchronizer gears worn
- C.
Shift fork nodes are worn
- D.
Counterbalance shaft is worn
Correct Answer
A. This is normal -
- 30.
What component is not a major shaft found in a manual transmission?
- A.
Input shaft
- B.
Main shaft
- C.
Countershaft
- D.
Reverse shaft
Correct Answer
D. Reverse shaft -
- 31.
The countershaft in a manual transmission rotates
- A.
Only during reverse
- B.
Only during forward speeds
- C.
Only during first and reverse
- D.
Any time the input shaft rotates
Correct Answer
D. Any time the input shaft rotates -
- 32.
What type of angled-cut gears are used in a manual transmission?
- A.
Helical cut
- B.
Straight cut
- C.
Concave cut
- D.
Transverse cut
Correct Answer
A. Helical cut -
- 33.
In a manual transmission, the gear ration between a smaller driving gear with 50 teeth and a larger driven gear with 100 teeth is
- A.
1:2
- B.
1:5
- C.
2:1
- D.
5:1
Correct Answer
C. 2:1 -
- 34.
The synchronizer hub in a manual transmission is internally splined so it mates with the
- A.
Main shaft
- B.
Countershaft
- C.
Reverse idler shaft
- D.
Synchronizer sleeve
Correct Answer
A. Main shaft -
- 35.
During synchronizer operation, what component keeps the sleeve from mating with the gear until both are at the same speed?
- A.
Insert
- B.
Spinner ring
- C.
Blocking ring
- D.
Torsion spring
Correct Answer
C. Blocking ring -
- 36.
What is the purpose of an interlock plate in a manual transmission?
- A.
Prevent the engagement of two gears at the same time
- B.
Locks two gears together during acceleration
- C.
Holds the shift fork against the gear face
- D.
Locks to create a direct-drive gear range
Correct Answer
A. Prevent the engagement of two gears at the same time -
- 37.
Which gear in a five-speed manual transmission has a direct-drive gear range?
- A.
Second
- B.
Third
- C.
Fourth
- D.
Fifth
Correct Answer
C. Fourth -
- 38.
Which gear ratio would give you the best overdrive gear range?
- A.
3.79:1
- B.
2.29:1
- C.
1.48:1
- D.
0.79:1
Correct Answer
D. 0.79:1 -
- 39.
Which gear does not mesh with the countershaft gears in a manual transmission?
- A.
First gear
- B.
Reverse gear
- C.
Overdrive gear
- D.
Synchronizer gear
Correct Answer
B. Reverse gear -
- 40.
What type of gear is constantly in mesh with the countershaft gear in a manual transmission?
- A.
Reverse idler gear
- B.
Overdrive gear
- C.
Third gear
- D.
First gear
Correct Answer
A. Reverse idler gear -
- 41.
The correct way to check the automatic transmission fluid on most vehicles is to use
- A.
The park gear range, the transmission is cold, and the engine running
- B.
The park gear range, the transmission is warm, and the engine running
- C.
Neutral gear range, the transmission is cold, and the engine not running
- D.
Any forward drive range, the transmission is warm, and the engine running
Correct Answer
B. The park gear range, the transmission is warm, and the engine running -
- 42.
What is indicated by milky colored automatic transmission fluid?
- A.
Overfilled fluid level
- B.
Antifreeze in the transmission
- C.
Broken torque converter stator
- D.
Broken torque converter impeller
Correct Answer
B. Antifreeze in the transmission -
- 43.
If you find automatic transmission fluid inside the modulator valve vacuum hose, you should suspect
- A.
A leaking throttle valve
- B.
A leaking transmission valve
- C.
A faulty modulator diaphragm
- D.
The wrong modulator valve has been installed
Correct Answer
C. A faulty modulator diaphragm -
- 44.
What circuit or component is not used in an electronic automatic transmission assembly?
- A.
Accumulator
- B.
Governor
- C.
Solenoid
- D.
Servo
Correct Answer
B. Governor -
- 45.
If the automatic transmission and torque converter are in good working order, a vehicle stall test will indicate
- A.
Consistent stall speeds in all gear ranges
- B.
Low stall rpm in the manual low and neutral gear ranges
- C.
High stall rpm in all forward gear ranges, low stall rpm in the reverse range
- D.
High stall rpm in the reverse gear range, low stall rpm in all forward ranges
Correct Answer
A. Consistent stall speeds in all gear ranges -
- 46.
Why must you support the front of an engine during transmission removal?
- A.
To provide adequate clearance for working underneath
- B.
So the transmission will separate from the engine easily
- C.
To keep the engine from tilting as you remove the transmission
- D.
To keep the input shaft and pressure plate/clutch disc from binding
Correct Answer
C. To keep the engine from tilting as you remove the transmission -
- 47.
What type of torque converter test checks the clutch action of the stator?
- A.
Stator-to-impeller interference test
- B.
Stator-to-turbine interference test
- C.
Stator one-way clutch test
- D.
Stator-to-servo clutch test
Correct Answer
C. Stator one-way clutch test -
- 48.
To check the end play of an automatic transmission's input and output shafts, you would use
- A.
A feeler gauge
- B.
A dial indicator
- C.
An inside micrometer
- D.
An outside micrometer
Correct Answer
B. A dial indicator -
- 49.
What must you not use when cleaning a metal mesh transmission screen in an automatic transmission?
- A.
Cloth
- B.
Solvent
- C.
Wire brush
- D.
Compressed air
Correct Answer
A. Cloth -
- 50.
A typical governor assembly consists of a shaft, a spool valve or check balls, springs, snap rings, and
- A.
A vacuum modulator
- B.
A pressure regulator
- C.
Two solenoids
- D.
Two weights
Correct Answer
D. Two weights -
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Current Version
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Mar 20, 2022Quiz Edited by
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Jul 06, 2016Quiz Created by
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