How is the upper limit of the voltage determined?
What will be an ideal response?
The upper limit of the voltage is determined by the permissible mechanical speed and the insulation qualities of the armature and commutator.
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Static electricity is:
A) A standing electric charge created by displacing protons. B) A standing electric charge created by displacing electrons. C) Created by splitting atoms and releasing all the electrons in the atom. D) A standing electric charge created by displacing neutrons.
The solder most commonly used on low-pressure copper fittings is made from _____
A) 45% silver/25% zinc/30% copper B) 50% tin/50% silver C) 95% tin/5% antimony D) 100% lead
To check the free play of manual slack adjusters of S-cam brakes, you should park on:
a. Level ground and apply the parking brakes, then apply service brakes. b. Level ground and drain off air pressure before checking the adjustment. c. Level ground, chock the wheels and release the parking brakes.
Before using a voltmeter, always ____.
A. Zero the ohms adjustment. B. Touch the two leads together to insure continuity. C. Set the range selector to a setting higher than the voltage you expect to read. D. Turn off the power.