Velocity ratios are calculated by dividing the driver gear by the driven gear. The driver gear or pulley is the one connected to the power - e.g. the pedals on a bicycle or the motor. VR = DRIVER/DRIVEN To calculate the speed of the driven gear - multiply the speed of the driver gear by the velocity ratio. In all the questions the driver is on the left - the first gear wheel.
VR= 12/24 =1/2
VR=1/2 or 0.5 Driven speed =1000rpm so final speed = 1000 x 0.5 = 500rpm All the questions are based on sprocket and chain systems but the calculations are exactly the same for gear trains.
1 / 10
What is the velocity ratio for this example?
1:2
2:1
6:3
3:1
What is the velocity ratio of this gear system?
1:5
2:1
1:2
10:1
What is the velocity ratio of this gear system?
1:6
3:1
1:3
1:4
What is the velocity ratio of this gear system?
6:1
5:1
12:1
1:5
What is the velocity ratio of this gear system?
1:4
4:1
8:1
8:2
What is the velocity ratio of this gear system?
1:4
4:1
8:1
1:2
If the wheel with 16 teeth revolves at 1000rpm, how fast does the driven sprocket revolve?
333rpm
1000rpm
4000rpm
250rpm
If the wheel with 12 teeth revolves at 500rpm, how fast does the driven sprocket revolve?
2000rpm
125rpm
500rpm
150rpm
If the wheel with 80 teeth revolves at 500rpm, how fast does the driven sprocket revolve?
200rpm
125rpm
2000rpm
500rpm
If the wheel with 60 teeth revolves at 100rpm, how fast does the driven sprocket revolve?