Motor Controls Test 1 Exam Questions
and Answers
A ___ connection is a combination of series- and parallel-connected components. -
correct answer-series/parallel
A ___ connection is a connection that has two or more components connected so there
is only one path for current flow. - correct answer-series
A ___ magnet is a magnet that retains only trace amounts of magnetism after the
magnetizing force has been removed. - correct answer-temporary
A magnet is a substance that produces a magnetic field and attracts ___. - correct
answer-iron
A(n) ___ connection has two or more components connected so there is more than one
path for current flow. - correct answer-parallel
A(n) ___ is a particle contained in the nucleus of an atom that has a positive electrical
charge. - correct answer-proton
A(n) ___ is an electronic component that allows current to pass through it in only one
direction. - correct answer-diode
All matter consists of an organized collection of ___. - correct answer-atoms
An inductive circuit is a circuit in which ___ lags voltage. - correct answer-current
Common power sources that directly produce DC voltage are ___, fuel cells, and
photovoltaic cells. - correct answer-batteries
Energy sources such as coal, oil, and ___ are consumed during use. - correct answer-
natural gas
In addition to the maximum voltage, each photovoltaic cell may produce up to ___ mA
of current. - correct answer-40
In an inductive circuit, the current lags the ___. - correct answer-voltage
Ohm's law is used in circuits that contain ___. - correct answer-impedance
, Ohm's law states that voltage in a circuit is equal to ___. - correct answer-current times
resistance
Permanent magnets may be demagnetized by a sharp blow or by ___. - correct answer-
heat
Photovoltaic cells are rated by the amount of ___ they convert. - correct answer-energy
The ___ in a circuit containing series-connected loads is the same throughout the
circuit. - correct answer-current
The direction in which current flows through a conductor determines the ___ of the
magnetic field around it. - correct answer-direction
The electrical term used to describe the opposition to electron flow is ___. - correct
answer-resistance
The photovoltaic effect is measured using a high-impedance voltage-measuring device
such as a ___. - correct answer-digital multimeter
The power formula states that current (I) in a circuit is equal to power (P) ___ voltage
(E). - correct answer-divided by
The power formula states that power (P) in a circuit is equal to voltage (E) ___ current
(I). - correct answer-times
The power formula states that voltage (E) in a circuit is equal to power (P) ___ current
(I). - correct answer-divided by
The relationship between power, voltage, and current may be visualized by presenting
the power formula in ___ form. - correct answer-pie chart
The total resistance in a circuit containing parallel-connected loads is ___ the smallest
resistance value. - correct answer-less than
The total resistance in a circuit containing series-connected loads equals the ___ of the
resistances of all loads. - correct answer-sum
The total voltage applied across loads connected in series is ___ across the individual
loads. - correct answer-divided
The unit of capacitance is ___. - correct answer-farads (F)
___ are used to avoid long expressions of units that are smaller or larger than the base
unit. - correct answer-Prefixes
and Answers
A ___ connection is a combination of series- and parallel-connected components. -
correct answer-series/parallel
A ___ connection is a connection that has two or more components connected so there
is only one path for current flow. - correct answer-series
A ___ magnet is a magnet that retains only trace amounts of magnetism after the
magnetizing force has been removed. - correct answer-temporary
A magnet is a substance that produces a magnetic field and attracts ___. - correct
answer-iron
A(n) ___ connection has two or more components connected so there is more than one
path for current flow. - correct answer-parallel
A(n) ___ is a particle contained in the nucleus of an atom that has a positive electrical
charge. - correct answer-proton
A(n) ___ is an electronic component that allows current to pass through it in only one
direction. - correct answer-diode
All matter consists of an organized collection of ___. - correct answer-atoms
An inductive circuit is a circuit in which ___ lags voltage. - correct answer-current
Common power sources that directly produce DC voltage are ___, fuel cells, and
photovoltaic cells. - correct answer-batteries
Energy sources such as coal, oil, and ___ are consumed during use. - correct answer-
natural gas
In addition to the maximum voltage, each photovoltaic cell may produce up to ___ mA
of current. - correct answer-40
In an inductive circuit, the current lags the ___. - correct answer-voltage
Ohm's law is used in circuits that contain ___. - correct answer-impedance
, Ohm's law states that voltage in a circuit is equal to ___. - correct answer-current times
resistance
Permanent magnets may be demagnetized by a sharp blow or by ___. - correct answer-
heat
Photovoltaic cells are rated by the amount of ___ they convert. - correct answer-energy
The ___ in a circuit containing series-connected loads is the same throughout the
circuit. - correct answer-current
The direction in which current flows through a conductor determines the ___ of the
magnetic field around it. - correct answer-direction
The electrical term used to describe the opposition to electron flow is ___. - correct
answer-resistance
The photovoltaic effect is measured using a high-impedance voltage-measuring device
such as a ___. - correct answer-digital multimeter
The power formula states that current (I) in a circuit is equal to power (P) ___ voltage
(E). - correct answer-divided by
The power formula states that power (P) in a circuit is equal to voltage (E) ___ current
(I). - correct answer-times
The power formula states that voltage (E) in a circuit is equal to power (P) ___ current
(I). - correct answer-divided by
The relationship between power, voltage, and current may be visualized by presenting
the power formula in ___ form. - correct answer-pie chart
The total resistance in a circuit containing parallel-connected loads is ___ the smallest
resistance value. - correct answer-less than
The total resistance in a circuit containing series-connected loads equals the ___ of the
resistances of all loads. - correct answer-sum
The total voltage applied across loads connected in series is ___ across the individual
loads. - correct answer-divided
The unit of capacitance is ___. - correct answer-farads (F)
___ are used to avoid long expressions of units that are smaller or larger than the base
unit. - correct answer-Prefixes
