CM 411 Final Exam Questions With 100% Complete Solutions Graded A+
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Course
CM 411
Institution
CM 411
A_____is an electrical device containing fuses or circuit breakers for protecting the individual circuits of a residence and serves as a means of disconnecting the entire residence from the distribution system - CORRECT ANSWER-Service Panel
A(n)____is an electric device that uses electromagnetis...
CM 411 Final Exam Questions With
100% Complete Solutions Graded A+
A_____is an electrical device containing fuses or circuit breakers for protecting the
individual circuits of a residence and serves as a means of disconnecting the entire
residence from the distribution system - CORRECT ANSWER-Service Panel
A(n)____is an electric device that uses electromagnetism to change (step-up or step-
down) AC voltage from one level to another - CORRECT ANSWER-Transformer
A____is an electric over current protection device used to limit the rate of current flow in
a circuit - CORRECT ANSWER-Fuse
The broad categories of fuses are plug,cartridge, and ____ - CORRECT ANSWER-
Blade
A(n)____is a small, open tool container (pouch) for storing commonly used electrical
tools - CORRECT ANSWER-Electrical tool pouch
____is clothing and/or equipment worn by individuals to reduce the possibility of injury
in the work area - CORRECT ANSWER-Personal Protective Equipment (PPE)
The five common classes of _____are Class A, Class B, Class C,Class D, and Class K
- CORRECT ANSWER-Fires
Class ____ Fires occur in facilites near or in electrical equipment - CORRECT
ANSWER-B
The Major Sources of energy are coal, oil and - CORRECT ANSWER-Gas, Wood,
Nuclear Power
A(n)____is half of a cycle - CORRECT ANSWER-Alternation
, The _____ Value of a sine wave is the maximum value of either the positive or negetive
alternations - CORRECT ANSWER-Peak
The____Value of a sine wave is the value that produces the same amount of heat in a
pure resistive circuit as a DC current of the same value - CORRECT ANSWER-root-
mean-square
____current is current that flows in only one direction - CORRECT ANSWER-Direct
A(n)____circuit is a circuit in which current leads voltage - CORRECT ANSWER-
Capacitive
A(n)____ is a material that has a very high resistance and resists the flow of electrons -
CORRECT ANSWER-Insulator
____light is the portion of the electromagnetic spectrum to which the human eye
responds - CORRECT ANSWER-Visible
____is the effect that occurs when light falls on a surface - CORRECT ANSWER-
Illumination
A(n)____ is the amount of light produced by a lamp divided by the area that is
illuminated - CORRECT ANSWER-Footcandle
Most digital displays include a(n)___to show changes and trends in a circuit -
CORRECT ANSWER-bar graph
____ voltages are produced by the magnetic fields generated by current-carrying
conductors, fluorescent lighting, and operating electrical equipment - CORRECT
ANSWER-Ghost
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