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
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A watchful "rock chuck" or Yellow-bellied Marmot (Marmota flaviventris) atop Mount Dana, Y
In 1979 Islamic militants held American embassy workers hostage in Tehran.
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