The combination chuck:
A) Is a three-jaw chuck held in the jaws of a four-jaw chuck
B) Can be a four-jaw chuck in which the jaws can be moved independently
C) Can be a three-jaw chuck with a scroll plate, but each jaw does not have an adjusting screw for independent action
D) Is a four-jaw chuck with top jaws
Question 2
The universal chuck has:
A) Four jaws, each of which can move without affecting the position of the others
B) A special adjusting system that makes the jaws center round work more accurately
C) Two, three or six jaws that all move in or out an equal distance
D) Three jaws that move independently of each other
Comparing the jaws of chimpanzees, australopithecines, and humans.
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A combination wrench has an open end at one end and a box end at the other end.
Combination of arrangement and sequence is correct