Gearbox Quiz 3

What is torque multiplication?

What is the gear ratio if the number of revolutions of the driver gear is 40 and the number of revolutions of the driven gear is 20?

• 1:1

• 2:1

• 1:2

• 3:1

What is the gear ratio if a gear with 32 teeth drives a gear with 15 teeth?

• 2.13

• 2.14

• 2.15

• 2.16

What is the gear ratio if a gear with 16 teeth drives a gear with 28 teeth?

• 1.75

• 2.00

• 1.50

• 1.25

What is the effect of gear ratio on speed?

• Increases speed

• Decreases speed

• No effect on speed

• Fluctuates speed

A gearbox has a third gear ratio of 1.5:1 and the input shaft rotates at 4000 rev/min, with a torque of 40 Nm. What is the speed of the output shaft (to 2 decimal places)?

• 2666.67 rev/min

• 6000.00 rev/min

• 4000.00 rev/min

• 2000.00 rev/min

A gearbox has a third gear ratio of 1.5:1 and the input shaft rotates at 4000 rev/min, with a torque of 40 Nm. What is the torque delivered by the output shaft?

• 60 Nm

• 40 Nm

• 26.67 Nm

• 80 Nm

A gearbox has a third gear ratio of 1.5:1 and the input shaft rotates at 4000 rev/min, with a torque of 40 Nm. What is the overall transmission ratio if the final drive ratio is 3.5:1?

• 5.25:1

• 2.33:1

• 1.5:1

• 3.5:1

What is the role of the layshaft in a sliding mesh gearbox?

• To carry the gears that are permanently meshed with the gears on the mainshaft

• To engage and disengage the gears

• To transmit power to the wheels

• To control the speed of the vehicle

Which component in the constant-mesh gearbox rotates on bushes?

• Dog clutch

• Mainshaft gearwheel

• Lay shaft

• Idler gear