In order to raise the ramps on the Type-H system, what rotates in the opposite direction?

In order to raise the ramps on the Type-H system, what rotates in the opposite direction?

• A. Electric motor
• B. Pneumatic pump
• C. Manual hand pump
• D. Manual winch

Answer: (A)

Raising the ramps is accomplished by a reversible drive, so the moving parts must be driven by rotation that can be reversed. The Type-H system uses an electric motor to power the ramp mechanism; when you command a raise, the motor spins in the opposite direction to how it spins when lowering. This opposite rotation, transmitted through the gear train or winch, produces the upward motion of the ramps. The other options don’t provide this automatic, reverse-rotation drive: a pneumatic pump isn’t the rotary lift driver, and manual devices require human effort rather than an electrical reversal to raise.

Raising the ramps is accomplished by a reversible drive, so the moving parts must be driven by rotation that can be reversed. The Type-H system uses an electric motor to power the ramp mechanism; when you command a raise, the motor spins in the opposite direction to how it spins when lowering. This opposite rotation, transmitted through the gear train or winch, produces the upward motion of the ramps. The other options don’t provide this automatic, reverse-rotation drive: a pneumatic pump isn’t the rotary lift driver, and manual devices require human effort rather than an electrical reversal to raise.