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Hvac-Module-3 Basic Electricity Questions And Answers With Verified Solutions Already Passed!!!
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Hvac-Module-3 Basic Electricity Questions And Answers With Verified Solutions Already Passed!!!
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Hvac-Module-3 Basic ElectricityQuestions And Answers With Verified
Solutions Already Passed!!!
Alterating current(AC) - ANSWER✔✔ An electrical current that changes direction
on a cyclical basis
Ammeter - ANSWER✔✔ A test instrument used to measure current flow.
Ampere(A) - ANSWER✔✔ The unit of measurement for current flow. The
magnitude is determined by the number of electrons passing a point at a given
time.
Analog meter - ANSWER✔✔ A meter that uses a needle to indicate a valve on a
scale.
Clamp-on ammeter - ANSWER✔✔ A ammeter with operable jaws that are placed
around a conductor to sense the magnitude of the current flow.
Conductor - ANSWER✔✔ A material that readily conducts electricity;also,the
wire that connects components in an electrical circuits.
Contactor - ANSWER✔✔ A control device consisting of a coil and one or more
sets of contacts used as a switching device in high-voltage circuits.
Continuity - ANSWER✔✔ A continuous currents path. The absence of continuity
indicates an open circuits.
, Current - ANSWER✔✔ The rate or volume at which electrons flows in a circuit,
measured in amperes.
Digital meter - ANSWER✔✔ A meter that provides a direct numerical reading of
the valve measured.
Digital meter - ANSWER✔✔ A meter that provides a direct numerical reading of
the valve measured.
Direct current(DC) - ANSWER✔✔ An electric current that flows in one
direction.A battery is a common source of DC voltage.
Electromagnet - ANSWER✔✔ A coil of wire wrapped around a soft iron core.
When a current flows through the coil,magnetism is created.
inductive - ANSWER✔✔ Describes an operation where a conductor becomes
electrically charged from being near another electrically charged body, or becomes
magnetized by being within an existing magnetic field. The process itself is called
induction.
In-line ammeter - ANSWER✔✔ A current-reading meter that is connected in
series with the circuit under test.
insulator - ANSWER✔✔ A device or substance that inhibits the flow of current:
the opposite of conductor.
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