Neiep 300 Final Exam Solved
Question : How should ammeters be used to take
measurements in a circuit
CORRECT ANSWER : Connected in series with the circuit
Question : What will happen to the current in a circuit if the
resistance is doubled
CORRECT ANSWER : Current will be halved
Question : How do you measure voltage in a circuit
CORRECT ANSWER : Meter must be parallel with volt
being measured
Question : What is the outermost shell of an atom called
CORRECT ANSWER : Valence shell
Question : The Nucleus of an atom contains what
CORRECT ANSWER : Neutrons and protons
Question : Whats the E symbol represent in ohms law
CORRECT ANSWER : Voltage
Question : What happens to the total resistance in a wire if the
length is doubled
CORRECT ANSWER : Resistance is doubled
Question : If an atom has only one electron in its valence shell
_______?
CORRECT ANSWER : Atom will act as a good conductor
Question : Unlike charges ______?
CORRECT ANSWER : Attract
Question : A neutral atom has _____?
CORRECT ANSWER : equal number protons and electrons
Question : What is the name of the unit measuring current
CORRECT ANSWER : amperes
Question : Describe current flow
CORRECT ANSWER : Uniform movement of electrons
from negative to positive
Question : What is the unit that measures the quantity of
electrons passing a given point
CORRECT ANSWER : Coulomb
Question : Name the unit used in measuring the potential
difference across two points in a circuit
CORRECT ANSWER : Volt
Question : What is the unit to measure opposite to current
flow
CORRECT ANSWER : Ohms
Question : What happens to resistance in a wire, if its width is
increased four times
CORRECT ANSWER : Resistance is 1/4
Question : What does the designation DPDTNO switch
represent
CORRECT ANSWER : Double-pole, Double-Throw,
Normally Open switch
Question : _____ refer to the moveable contacts on a switch
CORRECT ANSWER : Poles
Question : Contact wear is always _______ on DC switches
than AC switches
CORRECT ANSWER : greater
Question : Describe maintained contact switch action
CORRECT ANSWER : When the switch is actuated once,
contacts close an remain close
Question : What type of switch would be found at a terminal
landing