what is the primary difference between automatic and manual transmissions?\na) automatic transmissions…

what is the primary difference between automatic and manual transmissions?\na) automatic transmissions transmit power from the engine to the drive wheels.\nb) manual transmissions disengage the engine from the drive wheels during gear changes.\nc) automatic transmissions use electronic, hydraulic and mechanical controls to change gear ratios.\nd) manual transmissions reverse the direction of power flow rotation to allow the vehicle to move in reverse.

what is the primary difference between automatic and manual transmissions?\na) automatic transmissions transmit power from the engine to the drive wheels.\nb) manual transmissions disengage the engine from the drive wheels during gear changes.\nc) automatic transmissions use electronic, hydraulic and mechanical controls to change gear ratios.\nd) manual transmissions reverse the direction of power flow rotation to allow the vehicle to move in reverse.

Answer

Brief Explanations:

Automatic transmissions change gears without driver - input using electronic, hydraulic and mechanical controls. Manual transmissions require the driver to disengage the engine from the drive wheels (using the clutch) during gear changes. Option A is true for both types. Option C only describes automatic transmissions. Option D is a function of both types and not the primary difference.

Answer:

B. Manual transmissions disengage the engine from the drive wheels during gear changes.