The three essential requirements for a useful electric circuit are:
A) A power source, a path for current flow, and a switch.
B) A power source, a path for current flow, and an electrical load.
C) A magnetic field, a path for current flow, and a switch.
D) A power source, a magnetic field, and a path for current flow.
B
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A medium-size motor has a frame number of 284T. The D dimension of this motor is _____.
a. 2" b. 5" c. 7" d. 10"
In a cell, the nucleus is surrounded by the ____________________
Fill in the blank(s) with the appropriate word(s).
What kind of water is absorbed by plant roots?
a. hygroscopic c. hydroponic b. gravitational d. capillary
Timing gears are being discussed. Technician A says that worn timing gears can make noise. Technician B says that the clearance between the gears that is seen by rotating one gear back and forth without the other moving is called backlash. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B