DT EXAM

16. The teeth on helical gears are cut at an angle to the face of the gear. What is the main advantage?
The main advantage is to achieve the smooth transfer of energy from one gear to another.
17. The steering system on a motor car is an application of
The steering system on a motor car is an application of rack-and-pinion and recirculating-ball steering.
18. The vice clamps on the metalwork vice are made of
The vice clamps on the metalwork vice are made of carbon steel.
19. Which one of the following is NOT the reason that gears are generally used for?
Noise reduction.
20. Most gears that you see in real life have teeth. Which one of the following is NOT an advantage?
Gear is difficult to make than wheel.
I hope this can help with your understanding. =)