Resistors are used for three main purposes in an electrical circuit. Resistors limit the current flow through a circuit, divide voltage, and _____?
A. store energy
B. give off heat
C. permit current to flow in only one direction
D. amplify voltage
Answer: B
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In the accompanying figure, what is the value of 4x in degrees?
A. 42 B. 48 C. 12 D. 24
The most widely used types of packaged units in residential air-conditioning applications that use air to remove the heat from the condenser are ____________________ packaged units.
Fill in the blank(s) with the appropriate word(s).
If something has a high density:
A) Its specific volume is likely to be low. B) Its specific gravity is likely to be low. C) There is no relationship between density and specific volume. D) Its specific volume is also likely to be high.
________ action uses the stopping power of one shoe to help increase the application force of the other shoe
A) Centripetal B) Servo C) Centrifugal D) Self-energizing