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Generals basic electricity oral questions

Generals basic electricity oral questions
21問 • 1年前
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    問題一覧

  • 1

    What is the most important law applicable to the study of electricity ?

    Ohm's Law

  • 2

    What are the elements of ohms law ?

    Voltage (E), current (I), and resistance (R)

  • 3

    What are the sources of electrical power ?

    Mechanical, chemical, light and thermal

  • 4

    What does an electrical circuit consist of ?

    source, resistance and conductors

  • 5

    What represents capacitance in an AC circuit?

    A capacitor (condenser)

  • 6

    What is the function of a capacitor?

    To store electricity.

  • 7

    What is inductance?

    A voltage that is induced in a coil in an AC circuit

  • 8

    What is impedance?

    A combined effect of resistance, inductive reactance, and capacitive reactance in an AC circuit.

  • 9

    What is the unit of measurement of power in a DC circuit ?

    Watt

  • 10

    What is a Killowatt?

    1000 watts

  • 11

    In a DC circuit what occurs when voltage is increased while resistance remains constant ?

    There will be an increase in current.

  • 12

    What are three types of DC electrical circuits ?

    Series, parallel, and series-parallel.

  • 13

    A 24-volt lead-acid battery has how many cells?

    12

  • 14

    What should be the specific gravity of the electrolyte in a fully charged lead acid battery ?

    It should be between 1.275 and 1.300

  • 15

    What instrument is used to determine the specific gravity of electrolyte in a lead acid battery?

    Hydrometer

  • 16

    Why can't a hydrometer be used to determine the charge of a nickel cadmium battery ?

    The gravity of the electrolyte in a nickel cadmium battery does not change appreciably during charge or discharge of the battery

  • 17

    When using a hydrometer to check the charge of a lead-acid battery, at what temperatures must a correction factor be applied to the reading?

    above 90°F or below 70°F

  • 18

    What is electromagnetic induction ?

    transfer of electrical energy by means of a magnetic field

  • 19

    How are battery compartments protected against corrosion?

    coated with special corrosion resistant paint

  • 20

    What should be the correct electrolyte level in a properly serviced battery ?

    3/8 inches above the plates

  • 21

    Why should nickel-cadmium batteries and lead-acid batteries not be stored or serviced in the same area?

    The electrolyte & fumes from Lead-Acid batteries can contaminate the electrolyte in the Nickel-Cadmium battery.

    • General oral aircraft drawings

    General oral aircraft drawings

    ユーザ名非公開 · 9問 · 1年前

    General oral aircraft drawings

    General oral aircraft drawings

    9問 • 1年前
    ユーザ名非公開

    問題一覧

  • 1

    What is the most important law applicable to the study of electricity ?

    Ohm's Law

  • 2

    What are the elements of ohms law ?

    Voltage (E), current (I), and resistance (R)

  • 3

    What are the sources of electrical power ?

    Mechanical, chemical, light and thermal

  • 4

    What does an electrical circuit consist of ?

    source, resistance and conductors

  • 5

    What represents capacitance in an AC circuit?

    A capacitor (condenser)

  • 6

    What is the function of a capacitor?

    To store electricity.

  • 7

    What is inductance?

    A voltage that is induced in a coil in an AC circuit

  • 8

    What is impedance?

    A combined effect of resistance, inductive reactance, and capacitive reactance in an AC circuit.

  • 9

    What is the unit of measurement of power in a DC circuit ?

    Watt

  • 10

    What is a Killowatt?

    1000 watts

  • 11

    In a DC circuit what occurs when voltage is increased while resistance remains constant ?

    There will be an increase in current.

  • 12

    What are three types of DC electrical circuits ?

    Series, parallel, and series-parallel.

  • 13

    A 24-volt lead-acid battery has how many cells?

    12

  • 14

    What should be the specific gravity of the electrolyte in a fully charged lead acid battery ?

    It should be between 1.275 and 1.300

  • 15

    What instrument is used to determine the specific gravity of electrolyte in a lead acid battery?

    Hydrometer

  • 16

    Why can't a hydrometer be used to determine the charge of a nickel cadmium battery ?

    The gravity of the electrolyte in a nickel cadmium battery does not change appreciably during charge or discharge of the battery

  • 17

    When using a hydrometer to check the charge of a lead-acid battery, at what temperatures must a correction factor be applied to the reading?

    above 90°F or below 70°F

  • 18

    What is electromagnetic induction ?

    transfer of electrical energy by means of a magnetic field

  • 19

    How are battery compartments protected against corrosion?

    coated with special corrosion resistant paint

  • 20

    What should be the correct electrolyte level in a properly serviced battery ?

    3/8 inches above the plates

  • 21

    Why should nickel-cadmium batteries and lead-acid batteries not be stored or serviced in the same area?

    The electrolyte & fumes from Lead-Acid batteries can contaminate the electrolyte in the Nickel-Cadmium battery.