DSL-103 MidTerm

Modern gears are designed with a special tooth shape called a(n) __________ that compensates for the changing point of contact between gears as they rotate through mesh.

• Axial

• Radius

• Cone

• Involute

Technician A says that gears with different pitch can mesh properly. Technician B says that only gears of the same pitch can mesh properly. Who is correct?

• Tech A

• Tech B

• Both Tech B and Tech B

• Neither Tech A or Tech B

Which of the following is anything that allows us to move greater distances or weight with less effort?

• Torque

• Axial thrust

• Mechanical advantage

• Strength advantage

What is the gear ratio for the given condition? Two turns of the driving gear equal one turn of the driven gear.

• 3:2

• 1:2

• 2:1

• 2:3

The sizing of the gears and the relationship between them is known as the __________ ratio.

• Gear

• Overdrive

• Underdrive

• Torque

When we have a ratio with more than one pair of gears involved, it is called a(n) __________ ratio.

• Gear reduction

• Compound

• Overdrive

• Underdrive

Which of these statements is correct about rack-and-pinion gears?

• The rotation of the pinion gears causes the rack to rotate clockwise.

• The rotation of the pinion causes the rack to move horizontally.

• The rotation of the pinion causes the rack to move spiral like.

• The rotation of the pinion gears causes the rack to rotate helically.

What type of gear is the simplest of modern gears used in vehicles today?

• Spur gear

• Worm gear

• Helical gear

• Pinion gear

Which of these statements is FALSE about helical gears?

• Helical gears have teeth that are cut at an angle.

• The tooth is part of a helix or spiral in shape.

• There is always more than one tooth in mesh at a time.

• Helical gears produce more noise in operation than spur gears.

Which of these helps in preventing catastrophic failure by preventing the movement of more than one shift rail at once?

• Sliding color

• Sliding clutch

• Interlock system

• Shift forks