Question 1

Which Original Equipment Manufacturer (OEM) is known for triple-countershaft transmissions?

Accepted Answer

A)   Freightliner
B)   Navistar International
C)   Mack Trucks
D)   Kenworth

Question 2

If a drive gear is required to rotate a driven gear in the same direction of rotation,which of the following is a requirement?

Accepted Answer

A)   drive gear must be larger in diameter than the driven gear
B)   drive gear must double the number of teeth on the driven gear
C)   idler gear is required between the drive and driven gears
D)   two tooth-meshed gears always turn in the same direction

Question 3

Which of the following is a disadvantage of spur gearsets?

Accepted Answer

A)   produce high thrust forces
B)   noise
C)   torque losses
D)   costly to manufacture

Question 4

When a truck transmission uses helical gearing,which of the following has to be true?

Accepted Answer

A)   both right-hand and left-hand gears must be used
B)   only right-hand gears can be used
C)   only left-hand gears can be used
D)   no ratio change is possible

Question 5

What is an auxiliary drive system for chassis accessories such as hydraulic pumps driven by the transmission known as?

Accepted Answer

A)   auxiliary transmission
B)   drop box
C)   transfer case
D)   power-takeoff (PTO)

Question 6

What is the function of synchronizers in a truck transmission?

Accepted Answer

A)   bring the rotational speed of two rotating components to a single speed
B)   locks two rotating components together
C)   reduce gear clashing
D)   all of the above

Question 7

In a standard RoadRanger transmission,which of the following components could be described as floating?

Accepted Answer

A)   input shaft
B)   tailshaft
C)   mainshaft
D)   countershafts

Question 8

When discussing the rotation of gears and shafts in a truck transmission,which of the following terms can be used to describe clockwise rotation?

Accepted Answer

A)   forward
B)   right-hand
C)   left-hand
D)   both A and B

Question 9

Technician A says that when making a 5-6 upshift on a 10-speed transmission,the gearshift lever should be moved into the sixth gear position before flipping the range control button into high range.Technician B says that when making a 6-5 downshift on a 10-speed transmission,the range control button should be flipped into low range before the gearshift lever is moved into the fifth gear position.Who is correct?

Accepted Answer

A)   Technician A only
B)   Technician B only
C)   Both A and B
D)   Neither A nor B

Question 10

What defines the upper and lower rpm shift limits of a truck transmission?

Accepted Answer

A)   number of gear ratios
B)   engine torque rise profile rpms
C)   final drive carrier ratio
D)   tailshaft rpm

Question 11

What is the reason that a gear climbing condition tends to be short-lived?

Accepted Answer

A)   the condition is self-correcting
B)   the gear teeth are quickly destroyed
C)   it creates a new tooth contact pattern
D)   the gear roots get ground out

Question 12

Technician A says that a RoadRanger 18-speed transmission uses a five-speed main box using identical principles to that in a 10-speed transmission.Technician B says that a Roadranger 18-speed transmission uses twin compounds,one located in front of,the other behind,the main section.Who is correct?

Accepted Answer

A)   Technician A only
B)   Technician B only
C)   Both A and B
D)   Neither A nor B

Exam 15: Standard Transmissions

What defines the upper and lower rpm shift limits of a truck transmission?

Correct Answer
verified

What is the function of synchronizers in a truck transmission?

Correct Answer
verified

When discussing the rotation of gears and shafts in a truck transmission,which of the following terms can be used to describe clockwise rotation?

Correct Answer
verified

Which of the following is a disadvantage of spur gearsets?

Correct Answer
verified

Correct Answer
verified

What is an auxiliary drive system for chassis accessories such as hydraulic pumps driven by the transmission known as?

Correct Answer
verified

Technician A says that a RoadRanger 18-speed transmission uses a five-speed main box using identical principles to that in a 10-speed transmission.Technician B says that a Roadranger 18-speed transmission uses twin compounds,one located in front of,the other behind,the main section.Who is correct?

Correct Answer
verified

When a truck transmission uses helical gearing,which of the following has to be true?

Correct Answer
verified

Which Original Equipment Manufacturer (OEM) is known for triple-countershaft transmissions?

Correct Answer
verified

In a standard RoadRanger transmission,which of the following components could be described as floating?

Correct Answer
verified

What is the reason that a gear climbing condition tends to be short-lived?

Correct Answer
verified

If a drive gear is required to rotate a driven gear in the same direction of rotation,which of the following is a requirement?

Correct Answer
verified

Exam 15: Standard Transmissions

What defines the upper and lower rpm shift limits of a truck transmission?

Correct AnswerverifiedShow Answer

What is the function of synchronizers in a truck transmission?

Correct AnswerverifiedShow Answer

When discussing the rotation of gears and shafts in a truck transmission,which of the following terms can be used to describe clockwise rotation?

Correct AnswerverifiedShow Answer

Which of the following is a disadvantage of spur gearsets?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What is an auxiliary drive system for chassis accessories such as hydraulic pumps driven by the transmission known as?

Correct AnswerverifiedShow Answer

Technician A says that a RoadRanger 18-speed transmission uses a five-speed main box using identical principles to that in a 10-speed transmission.Technician B says that a Roadranger 18-speed transmission uses twin compounds,one located in front of,the other behind,the main section.Who is correct?

Correct AnswerverifiedShow Answer

When a truck transmission uses helical gearing,which of the following has to be true?

Correct AnswerverifiedShow Answer

Which Original Equipment Manufacturer (OEM) is known for triple-countershaft transmissions?

Correct AnswerverifiedShow Answer

In a standard RoadRanger transmission,which of the following components could be described as floating?

Correct AnswerverifiedShow Answer

What is the reason that a gear climbing condition tends to be short-lived?

Correct AnswerverifiedShow Answer

If a drive gear is required to rotate a driven gear in the same direction of rotation,which of the following is a requirement?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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