NEIEP 300 2023 FINAL EXAM QUESTIONS AND CORRECT ANSWERS
2024
How should ammeters be used to take measurements in a circuit - (answer)Connected in series with the
circuit
What will happen to the current in a circuit if the resistance is doubled - (answer)Current will be halved
How do you measure voltage in a circuit - (answer)Meter must be parallel with volt being measured
What is the outermost shell of an atom called - (answer)Valence shell
The Nucleus of an atom contains what - (answer)Neutrons and protons
Whats the E symbol represent in ohms law - (answer)Voltage
What happens to the total resistance in a wire if the length is doubled - (answer)Resistance is doubled
If an atom has only one electron in its valence shell _______? - (answer)Atom will act as a good
conductor
Unlike charges ______? - (answer)Attract
A neutral atom has _____? - (answer)equal number protons and electrons
What is the name of the unit measuring current - (answer)amperes
Describe current flow - (answer)Uniform movement of electrons from negative to positive
What is the unit that measures the quantity of electrons passing a given point - (answer)Coulomb
, Name the unit used in measuring the potential difference across two points in a circuit - (answer)Volt
What is the unit to measure opposite to current flow - (answer)Ohms
What happens to resistance in a wire, if its width is increased four times - (answer)Resistance is 1/4
What does the designation DPDTNO switch represent - (answer)Double-pole, Double-Throw, Normally
Open switch
_____ refer to the moveable contacts on a switch - (answer)Poles
Contact wear is always _______ on DC switches than AC switches - (answer)greater
Describe maintained contact switch action - (answer)When the switch is actuated once, contacts close
an remain close
What type of switch would be found at a terminal landing - (answer)Unidirectional limit switch
What are the resistance band colors - (answer)Black, Brown, Red, Orange, Yellow ,Green, Blue, Violet,
Grey, White
What is the tolerance on a gold band resistance - (answer)5%
What is the tolerance on a silver band resistance - (answer)10%
What is the tolerance when there is no band color - (answer)20%
Which resistor has a single fixed terminal and shaft driven, moveable contact - (answer)Rheostat
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