If You Lay Your Forearm Along a Table, You Can

question 65

Multiple Choice

If you lay your forearm along a table, you can rotate it so that your hand changes from a palm-down to a palm-up position. This is possible because your radius and ulna join at a

• A) ball-and-socket joint.
• B) hinge joint.
• C) pivot joint.
• D) ligament.

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Definitions:

Axial TIR

Tolerance of radial run-out in a rotating component, measured along the axis.

Hydraulic Brake Rotor

A critical component in hydraulic braking systems, the rotor is a disc that brake pads press against to create friction and slow down the vehicle.

Servo-type Hydraulic Drum Brake

A braking system which combines hydraulic pressure and mechanical servo action to increase braking efficiency, often found in vehicles.