Drive Trains and Power Systems Review

A ____ transmits power from a vehicle’s engine to its drive wheels.

• mechanical transmitter

• power train

• driveline

• differential

A typical power train includes a clutch, ____, differential, and final drive.

• transmission

• stabilizer bar

• harmonic balancer

• trans brake

A gear ratio is the number of ____.

• drive gears compared to the number of valves an engine has

• drive gears compared to the number of driven gears

• driven gears compared to the number of valves an engine has

• teeth on drive gear compared to the number of teeth on the driven gear

A typical power train includes a clutch, ____, differential, and final drive.

• transmission

• stabilizer bar

• harmonic balancer

• trans brake

A clutch is a ____.

• friction disc assembly that engages the engine flywheel to transfer power to the gears
• set of drive chains that engage the gears on the final drive
• fluid coupling that transmits power from the rotating crankshaft to the input shaft of the transmission
• set of idler gears in the transmission

A friction disc creates a ____.

• loose connection between a shaft and a flywheel
• chemical bond between a shaft and a disc
• mechanical connection between a flywheel and an output device
• permanent connection between a flywheel and a drive shaft

In a gear drive system, more torque is produced when the ____.

• larger diameter gear drives the smaller diameter gear
• smaller diameter gear drives the larger diameter gear
• each gear is the same diameter
• drive gear and the driven gear rotate at the same speed

In a gear drive system, more speed is produced when the ____.

• larger diameter gear drives the smaller diameter gear
• smaller diameter gear drives the larger diameter gear
• each gear is the same diameter
• drive gear and the driven gear rotate at the same speed

A gear is an example of the simple machine ____.

• lever
• wedge
• incline plane
• None of the above.

A set of two meshed gears always spin ____.

• clockwise
• counterclockwise
• in opposite directions
• in the direction of the input motion