ASVAB Mechanical Comprehension Practice Test 321838

Question 2 of 5
Gear Trains

Connected gears of different numbers of teeth are used together to change the rotational speed and torque of the input force. If the smaller gear drives the larger gear, the speed of rotation will be reduced and the torque will increase. If the larger gear drives the smaller gear, the speed of rotation will increase and the torque will be reduced.

What's the first gear in a gear train called?

driven gear

idler gear

input gear

driver gear