NCATT TEST PREP
The power in a DC circuit with 10 V and a current of 5 A is ___________________ -
answer50 Watts
In a series circuit, current is _______________ - answer Is the same through each
component of the circuit
In a series circuit, the sum of the resistor voltage drops must ______________ - answer
equal the source voltage
In a parallel circuit with two branches, each with the same resistance, the current in one
branch is ____________ - answer half of the total current
The equivalent resistance of 9 ohms and 18 Ohms resistors connected in parallel is
______________ - answer about 6 Ohms
The resistance in a DC citcuit that generates 3 W with 4 V applied is _______________
- answer5 Ohms
A 1/2 horsepower engine that operates 7 hours per day will generate how much power
in 30 days? - answer78 kWh
In a series circuit, the total resistance is _________________ - answerequal to the sum
of the resistances in the circuit
The current in a DC circuit with 10 V and 5 Ohms resistance is __________ - answer2
A
The voltage in a DC circuit with 6 A current and 4 Ohms resistance is _____________ -
answer24 V
Voltage produced by a battery is the result of _________________ - answerchemical
reaction
Which of these is not a means by which voltage is produced? - answerCapacitation
When a conductor and a magnetic field are in motion relative to one another, what is
generated? - answerVoltage or EMF
When an atom gains or loses electrons as part of an electron exchange with another
atom, it is said to be _________________ - answerionized
, What is the term for materials that do not readily conduct electricity? - answerInsulators
Which of the following statements about magnetic lines of force are true? -
answerMagnetic lines of force pass through all materials, both magnetic and
nonmagnetic.
Electromotive force (EMF) is measured in which of these units? - answerVolt
In a circuit, a differnce of potential can exist between two points on the circuit,but
usually, the difference in potential is generally measured against the metal cahssis on
whcih the parts of the circuit are mounted. This reference is called the - answerGround
potential
Which of these is not a state of matter? - answerEmulsion
Aviation electronics are commonly known as ______________ - answerAvionics
A chemical combination of two or more atoms is called a/an - answerMolecule
Silver, copper, gold, and aluminum are materials with many free electrons and make
good ____________________ - answerconductors
An electric force between two bodies that aren't touching one another is known as
________________________, because the electrical current cannot flow, and the
charges cannot be equalized. - answerStatic electricity or electrostatic force
In its natural state, with equal numbers of electrons and protons, an atom's charge is
said to be ________________________ - answerNeutral
Coulomb's Law states that charged bodies attract or repel each other with a force that is
________________ proportional to the square of their individual charges. -
answerIndirectly
______________ is the property of a material that enables it to attract pieces of iron -
answerMagnetism
______________________ describes the ease with which magnetic lines of force
distribute themselves through material. - answerPermeability
When squeezed, certain ionic quartz crystals, Rochelle salts, and tourmaline generate
____________ because of charges opposite polarity appear on opposite sides of the
crystal. - answerVotlage
A/An ______________ makes use of the fact that in some metals, such as iron,
electrons tend to move toward the heated end of a length of metal. -
answerThermocouple
The power in a DC circuit with 10 V and a current of 5 A is ___________________ -
answer50 Watts
In a series circuit, current is _______________ - answer Is the same through each
component of the circuit
In a series circuit, the sum of the resistor voltage drops must ______________ - answer
equal the source voltage
In a parallel circuit with two branches, each with the same resistance, the current in one
branch is ____________ - answer half of the total current
The equivalent resistance of 9 ohms and 18 Ohms resistors connected in parallel is
______________ - answer about 6 Ohms
The resistance in a DC citcuit that generates 3 W with 4 V applied is _______________
- answer5 Ohms
A 1/2 horsepower engine that operates 7 hours per day will generate how much power
in 30 days? - answer78 kWh
In a series circuit, the total resistance is _________________ - answerequal to the sum
of the resistances in the circuit
The current in a DC circuit with 10 V and 5 Ohms resistance is __________ - answer2
A
The voltage in a DC circuit with 6 A current and 4 Ohms resistance is _____________ -
answer24 V
Voltage produced by a battery is the result of _________________ - answerchemical
reaction
Which of these is not a means by which voltage is produced? - answerCapacitation
When a conductor and a magnetic field are in motion relative to one another, what is
generated? - answerVoltage or EMF
When an atom gains or loses electrons as part of an electron exchange with another
atom, it is said to be _________________ - answerionized
, What is the term for materials that do not readily conduct electricity? - answerInsulators
Which of the following statements about magnetic lines of force are true? -
answerMagnetic lines of force pass through all materials, both magnetic and
nonmagnetic.
Electromotive force (EMF) is measured in which of these units? - answerVolt
In a circuit, a differnce of potential can exist between two points on the circuit,but
usually, the difference in potential is generally measured against the metal cahssis on
whcih the parts of the circuit are mounted. This reference is called the - answerGround
potential
Which of these is not a state of matter? - answerEmulsion
Aviation electronics are commonly known as ______________ - answerAvionics
A chemical combination of two or more atoms is called a/an - answerMolecule
Silver, copper, gold, and aluminum are materials with many free electrons and make
good ____________________ - answerconductors
An electric force between two bodies that aren't touching one another is known as
________________________, because the electrical current cannot flow, and the
charges cannot be equalized. - answerStatic electricity or electrostatic force
In its natural state, with equal numbers of electrons and protons, an atom's charge is
said to be ________________________ - answerNeutral
Coulomb's Law states that charged bodies attract or repel each other with a force that is
________________ proportional to the square of their individual charges. -
answerIndirectly
______________ is the property of a material that enables it to attract pieces of iron -
answerMagnetism
______________________ describes the ease with which magnetic lines of force
distribute themselves through material. - answerPermeability
When squeezed, certain ionic quartz crystals, Rochelle salts, and tourmaline generate
____________ because of charges opposite polarity appear on opposite sides of the
crystal. - answerVotlage
A/An ______________ makes use of the fact that in some metals, such as iron,
electrons tend to move toward the heated end of a length of metal. -
answerThermocouple
