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Epicyclic gearing: Quiz

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Question 1: During ________, a special variation of epicyclic gearing was developed for portable radar gear, where a very high reduction ratio in a small package was needed.
World War IICollaboration with the Axis Powers during World War IISecond Sino-Japanese WarSoviet occupations

Question 2: where N is the number of teeth, w is ________ of the element (sun, arm, or ring).
Cross productRigid bodyRotation groupAngular velocity

Question 3: This type of gearing is sometimes used in ________ and construction equipment to provide high torque to the drive wheels.
TruckTractorCaterpillar Inc.Transmission (mechanics)

Question 4: This is the way some ________ work.
Transmission (mechanics)Direct-Shift GearboxDual clutch transmissionAutomatic transmission

Question 5: In bicycle ________, the sun is usually stationary, being keyed to the axle or even machined directly onto it.
Derailleur gearsTransmission (mechanics)Hub gearContinuously variable transmission

Question 6: Epicyclic gearing or planetary gearing is a ________ system that consists of one or more outer gears, or planet gears, revolving about a central, or sun gear.
Transmission (mechanics)Worm driveRack and pinionGear

Question 7: The gear ratio in an ________ gearing system is somewhat non-intuitive, particularly because there are several ways in which an input rotation can be converted into an output rotation.
Hub gearTransmission (mechanics)CogsetEpicyclic gearing







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