Tech A says Helical Gears create axial thrust. Tech B says Spur gears create axial thrust. Who is correct?

These Gears are used in 90 degree applications

These gears are designed to have the smoothest operation

Gear used in most passenger vehicle steering applications

Tech A says that a driving gear with 10 teeth and a driven gear with 30 teeth will increase torque. Tech B says a driving gear with 1 teeth and a driven gear with 30 teeth will increase wheel speed. Who is correct?

What gear is used to make the output shaft reverse direction?

Driver Gear has 30 teeth. Driven Gear has 15 teeth. What is the Gear Ratio?

Tech A says a Flywheel has a spur gear around the outter circumference. Tech B says a Flex Plate has a spur gear around the outter circumference. Who is correct?

The driving gear always has less teeth than the driven gear. True or False?

Which gears are designed to eliminate axial thrust?