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NEIEP 300 Exam Prep 2026 Questions And
Answers Updated.
How should ammeters be used to take measurements in a circuit - correct answer- Connected in series with the circuit What will happen to the current in a circuit if the resistance is doubled - correct answer- Current will be halved How do you measure voltage in a circuit - correct answer- Meter must be parallel with volt being measured What is the outermost shell of an atom called - correct answer- Valence shell The Nucleus of an atom contains what - correct answer- Neutrons and protons Whats the E symbol represent in ohms law - correct answer- Voltage
What happens to the total resistance in a wire if the length is doubled - correct answer- Resistance is doubled If an atom has only one electron in its valence shell _______? - correct answer- Atom will act as a good conductor Unlike charges ______? - correct answer- Attract A neutral atom has _____? - correct answer- equal number protons and electrons What is the name of the unit measuring current - correct answer- amperes Describe current flow - correct answer- Uniform movement of electrons from negative to positive What is the unit that measures the quantity of electrons passing a given point - correct answer- Coulomb
Describe maintained contact switch action - correct answer- When the switch is actuated once, contacts close an remain close What type of switch would be found at a terminal landing - correct answer- Unidirectional limit switch What are the resistance band colors - correct answer- Black, Brown, Red, Orange, Yellow ,Green, Blue, Violet, Grey, White What is the tolerance on a gold band resistance - correct answer- 5% What is the tolerance on a silver band resistance - correct answer- 10% What is the tolerance when there is no band color - correct answer- 20% Which resistor has a single fixed terminal and shaft driven, moveable contact - correct answer- Rheostat
Carbon film resistors have which characteristic - correct answer- Maintain close tolerances in response to temperature changes _____ have a negative temperature coefficient - correct answer- Thermistor Filament resistance increases when bulb is energized - correct answer- Incandescent bulbs Fluorescent lamps produce _______ the lumens per watt compared to incandescent lamps - correct answer- 2x How are switches rated? - correct answer- by max current switch can pass when closed What happens to voltage in a series circuit - correct answer- Voltage drop is directly proportional to resistance
What is the average voltage for one complete sign wave - correct answer- Zero vaults AC value that produces same heat dissipation in a resistor as an equivalent value as DC - correct answer- effective value One complete armature revolution through a four pole generator has how many rotations - correct answer- 360 degree mechanical, 720 degree electrical Phases are displaced ______ in a 3 phase generator - correct answer- 120 degress Using a rotating field to generate electricity, where is the output voltage taken from to supply the load? - correct answer- Stator There is a neutral or common connection for all three phases in _______ stator connections - correct answer- WYE Wave form gradually rises and abruptly falls or vice versa is called - correct answer- Saw tooth wave
Moveable portion of a relay is called - correct answer- armature according to the domain theory of magnesium ______ - correct answer- Electrons can spin in either directions Magnets created by flow of electricity are called - correct answer- Electro magnets Ease with which magnetic lines of force distribute themselves throughout material is referred to as? - correct answer- Permeability Ability of material to retain it magnetism is called - correct answer- Retentivity Magnetic lines of force form a closed loop is called - correct answer- Magnetic Circuit
