Automobile Engineering in ME
Two advantages of using helical gears rather than spur gears in a transmission system are

Strength and cost
Strength and less end thrust
Noise level and strength
Noise level and economy

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Automobile Engineering in ME
The function of anti-lock brake system (ABS) is that is

Minimizes the brake fade
Maintains directional control during braking by preventing the wheels from locking
Reduces the stopping distance
Prevents nose dives during braking and thereby postpones locking of the wheels

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