In a hydroboost brake system, there is power assist with the engine on, but no power assist with the engine off. What can cause this? A. Normal operation
B. Bad accumulator

Fluids at rest possess no flow energy. a)- true b)- false

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

What are the major differences between injection molding and extrusion?