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83 Cards in this Set
- Front
- Back
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A common 12 volt automotive battery is composed of ______ cells.
A) 2 B) 4 C) 6 D) 12 |
C) 6
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A fully charged lead-acid automotive battery will freeze at approximately _______ degrees Celsius.
A) 0.0 B) -10 C) -40 D) -80 |
D) -80
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A material that is a dielectric is a/an:
A) semiconductor B) insulator C) conductor D) voltage source |
B) insulator
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The magnetic strength of an electromagnet is _____________ to the current and the number of turns of conductor in the coil.
A) inversely proportional B) equal C) directly proportional D) equivalent |
C) directly proportional
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Each cell of a lead-acid automotive battery is theoretically capable of producing a maximum of _______ volts.
A) 1.14 B) 2.14 C) 6.14 D) 12 |
B) 2.14
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Which of the following materials is the best conductor of electricity?
A) Tungsten B) Silver C) Copper D) Gold |
B) Silver
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Which of the following methods is not a process used to produce a voltage?
A) Piezoelectric effect. B) Thermoelectric effect. C) Photoelectric effect. D) Resistance effect. |
D) Resistance effect.
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The smallest particle of any element that can exist is a/an:
A) atom B) molecule C) electron D) neutron |
A) atom
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Voltage is measured in units called:
A) amps B) volts C) ohms D) rads |
B) volts
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When using the AWG system of sizing wires, which of the following wires has the largest diameter?
A) AWG 22 B) AWG 20 C) AWG 16 D) AWG 10 |
D) AWG 10
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A 12 volt starter operating at 10 volts and drawing 110 A of current use ________ Watts of power.
A) 1200 B) 1000 C) 120 D) 1100 |
D) 1100
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When the resistance of a conductor increases as temperature increases the material is said to have a/an:
A) positive temperature coefficient of resistance. B) negative temperature coefficient of resistance. C) neutral temperature coefficient of resistance. D) resistive temperature coefficient of resistance. |
A) positive temperature coefficient of resistance.
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Neutrons have a __________ charge.
A) neutral B) positive C) even D) negative |
A) neutral
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The minimum recommended impedance of an ohm meter used to test circuits containing electronic components is ______ ohms.
A) ten hundred B) ten thousand C) ten million D) 1 million |
C) ten million
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The amperage a battery can deliver at minus 18 degrees Celsius for 30 seconds and maintain a terminal voltage of 7.2 volts is defined as:
A) reserve capacity. B) cold cranking amps. C) ampere hour rating. D) cranking amps. |
B) cold cranking amps.
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The gases that are produced during the charging process of a lead-acid battery are __________ and oxygen.
A) helium B) nitrogen C) hydrogen D) carbon monoxide |
C) hydrogen
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The minimum recommended impedance of a digital test light is ___________ ohms.
A) ten hundred B) ten thousand C) ten million D) one million |
C) ten million
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The term "cold solder joint" refers to:
A) a type of solder that requires no heat. B) a bad solder joint caused by not enough heat. C) a bad solder join t caused by too much heat. D) a joining of electrical wires made with no solder or heat. |
B) a bad solder joint caused by not enough heat.
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The effect of connecting lead-acid cells in parallel is to increase the _______ of the battery.
A) voltage B) power C) weight D) current |
B) power
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It is recommended to use a/an _______ to open a wiring harness that is bound by tape.
A) utility knife B) seam ripper C) sharp scissors D) roofing knife |
B) seam ripper
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Which of the following types of test lights must only be used in de-energized circuits?
A) Conventional test light B) Self-powered test light C) Digital test light D) Metric test light |
B) Self-powered test light
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__________ is defined as the opposition to the flow of electrons.
A) Voltage B) Amperage C) Resistance D) Electromotive force |
C) Resistance
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Magnetic lines of flux will always run ________ each other.
A) parallel to B) across C) perpendicular D) at a curve to |
A) parallel to
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Which of the following is not a designed purpose of a lead-acid automotive battery?
A) To provide electrical power to start the vehicle engine. B) To provide additional power for steep inclines. C) To stabilize the vehicles electrical system. D) To provide additional electrical power during periods when power consumption exceeds the generator output. |
B) To provide additional power for steep inclines.
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When removing the battery cables from the terminals of an automotive battery, which cable should be removed first?
A) The positive cable. B) The negative cable. |
B) The negative cable.
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If a battery in a vehicle becomes discharged in five days, a cause might be:
A) a parasitic load. B) too high an ambient temperature. C) too low an ambient temperature. D) a defective charging system. |
A) a parasitic load.
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When referring to a lead-acid automotive battery, which of the following is most chemically active?
A) The negative plate. B) The separator plate. C) The positive plate. D) The plate strap. |
C) The positive plate.
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The common type of solder used for automotive electrical connections is ________ solder.
A) silver B) 60/40 C) 40/60 D) 50/50 |
B) 60/40
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Which type of solder is recommended for use when repairing electrical circuits?
A) Acid core solder B) Polymer core solder C) Rosin core solder |
C) Rosin core solder
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The stationary of a generator is called a/an ______________ .
A) stator B) rotor C) field D) transducer |
A) stator
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When boosting a vehicle that has a battery with a low charge, the last cable connection to be made is:
A) to the positive terminal of the booster battery. B) to the positive terminal of the discharged battery. C) to a solid ground connection on the engine of the vehicle being boosted. D) to the negative terminal of the booster battery. |
C) to a solid ground connection on the engine of the vehicle being boosted.
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A/an____________ converts electrical energy to mechanical energy.
A) generator B) electric motor C) distributor D) transducer |
B) electric motor
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An electric current that flows in one direction is defined as:
A) alternating current. B) direct current. C) indirect current. D) mostly current. |
B) direct current.
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When the magnet field around a coil is at its maximum size, the coil is said to be _______________ .
A) full B) wound C) saturated D) impervious |
C) saturated
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When electric current flows in a conductor, magnetic field surrounds the conductor:
A) in the same direction as current flow. B) in the opposite direction to current flow. C) at right angles to the direction of current flow. D) at left angles to the direction of current flow. |
C) at right angles to the direction of current flow.
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It is recommended to use a/an _________ to find a high resistance fault in an energized electrical circuit.
A) ammeter B) voltmeter C) ohmmeter D) digital test light |
B) voltmeter
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A material that is a good insulator of electricity will have:
A) four valence electrons. B) less than four valence electrons. C) more that four valence electrons. D) no valence electrons. |
C) more that four valence electrons.
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Adding resistors in parallel _________ the total resistance of the parallel circuit.
A) increases B) decreases C) does not change |
B) decreases
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A material that is a good conductor of electricity will have:
A) four valence electrons. B) less than four valence electrons. C) more that four valence electrons. D) no valence electrons. |
B) less than four valence electrons.
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Mutual induction occurs in a coil:
A) only when the magnetic field collapses. B) only when the magnetic field expands. C) only when the magnetic field is moving. D) never. |
C) only when the magnetic field is moving.
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The process of "tinning" a copper wire involves:
A) melting a thin coating of tin on the wire. B) melting a thin coating of solder on the wire. C) crimping a tin connector onto the wire. D) preheating the copper wire. |
B) melting a thin coating of solder on the wire.
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Which of the following test lights contains a battery?
A) Conventional test light B) Self-powered test light C) Digital test light D) Metric test light |
B) Self-powered test light
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When referring to a lead-acid automotive battery, the battery is considered to have 100 percent power available at ____ degrees Celsius.
A) 0.0 B) 12 C) 27 D) 35 |
C) 27
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Protons have a ________. charge.
A) neutral B) positive C) even D) negative |
B) positive
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When using an ammeter to test an electrical circuit, the meter is connected _________ with the circuit.
A) series B) parallel C) combination D) outside |
A) series
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A/an____________ converts electrical energy to mechanical energy.
A) generator B) solenoid C) distributor D) transducer |
B) solenoid
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When the resistance of a conductor decreases as temperature increases the material is said to have a/an:
A) positive temperature coefficient of resistance. B) negative temperature coefficient of resistance. C) neutral temperature coefficient of resistance. D) resistive temperature coefficient of resistance. |
B) negative temperature coefficient of resistance.
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Once the surface charge has been removed from an automotive battery, the open circuit voltage of a fully charged 12 volt battery will be approximately _______ volts.
A) 11.9 B) 12.6 C) 12.9 D) 12.0 |
B) 12.6
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All material is composed of:
A) valence electrons. B) valence protons. C) atoms. D) semiconductors. |
C) atoms.
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When using the Metric system of sizing wires, which of the following wires has the largest diameter?
A) 0.5 B) 1.0 C) 2.0 D) 5.0 |
D) 5.0
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When storing a lead-acid-automotive battery, the self-discharge rate of the battery will _________ as the ambient temperature increases.
A) stay the same B) increase C) decrease |
B) increase
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The opposition offered by a material to magnetic flux is defined as __________ .
A) reluctance B) magnetism C) permeability D) retentivity |
A) reluctance
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When referring to a lead-acid automotive battery, the electrolyte is composed of approximately _________ percent sulphuric acid by mass.
A) 16 B) 26 C) 36 D) 46 |
C) 36
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It is recommended to wear _______ when installing electronic components sensitive to static electricity.
A) coveralls B) rubber soled boots C) a grounded wrist strap D) leather soled boots |
C) a grounded wrist strap
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When a lead-acid automotive battery is at a fully charged state the concentration of sulphuric acid is:
A) at its maximum. B) at its minimum. C) neutral. D) at a low level. |
A) at its maximum.
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The rotating component of an electric starting motor is called a/an ______________ .
A) stator B) armature C) field D) transducer |
B) armature
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A fully discharged lead-acid automotive battery will freeze at approximately _______ degrees Celsius.
A) 0.0 B) -10 C) -40 D) -80 |
B) -10
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The voltage level in an electrostatic discharge from sliding across a car seat could have levels of approximately ______ volts.
A) 250 B) 300 C) 500 D) 2000 |
D) 2000
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A _________ meter should only be connected to de-energized electrical circuits.
A) ammeter B) voltmeter C) ohmmeter D) wattmeter |
C) ohmmeter
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A magnetic field is made up of many lines of force called _________ lines.
A) magnetic B) electric C) electromagnetic D) flux |
D) flux
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The ability of a material to concentrate magnetic lines of force is defined as ____________ .
A) reluctance B) magnetism C) permeability D) retentivity |
C) permeability
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The rotating component of a generator is called a/an ______________ .
A) stator B) rotor C) field D) transducer |
B) rotor
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Twisted pair conductors are often used on ________________ to limit the magnetic field effect on other electrical circuits.
A) stop light circuits B) horn circuits C) fuel injector circuits D) running light circuits |
C) fuel injector circuits
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A ____________ is used in engine knock sensors.
A) Piezoelectric crystal B) Thermoelectric crystal C) Photoelectric crystal D) Resistance crystal |
A) Piezoelectric crystal
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An example of an electrochemical source of voltage is a/an:
A) generator B) alternator C) battery D) radiator |
C) battery
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A material that is a semi conductor of electricity will have:
A) four valence electrons. B) less than four valence electrons. C) more that four valence electrons. D) no valence electrons. |
A) four valence electrons.
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The recommended type of charger to charge an automotive type lead-acid battery to 100 percent charge is a/an ___________ charger.
A) slow B) fast C) trickle |
A) slow
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A solution of water and ________ will neutralize the sulphuric acid in the electrolyte of a lead-acid battery.
A) baking powder B) antifreeze C) baking soda D) salt |
C) baking soda
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Symbols for electronic components are draw according to the ___________ theory of current flow.
A) conventional B) electron C) schematic D) national |
A) conventional
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A voltage is _______ in any conductor exposed to a changing magnetic field.
A) induced B) not induced C) deleted D) canceled |
A) induced
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When using the conventional theory of current flow, the direction of flux lines around a conductor is determined using the:
A) left-hand rule for conductors. B) right-hand rule for conductors. |
B) right-hand rule for conductors.
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The conventional theory of current flow is:
A) from positive to negative, outside a source. B) from positive to positive, outside a source. C) from negative to positive, outside a source. D) from positive to positive, inside a source. |
A) from positive to negative, outside a source.
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Which of the following types of test lights is recommended to be used when testing automotive electronic circuits?
A) Conventional test light B) Self-powered test light C) Digital test light D) Metric test light |
C) Digital test light
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Dry air has a relative dielectric constant of:
A) 1 B) 2 C) 3 D) 4 |
A) 1
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When the battery temperature of a charged lead-acid automotive battery is between 20 and 30 degrees Celsius, the self-discharge rate of the battery is approximately ____ percent of its charge per day.
A) 0.2 B) 1.2 C) 2.0 D) 3.0 |
A) 0.2
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When using the conventional theory of current flow, current flows from _________________ outside a source.
A) positive to negative B) negative to positive C) inside to |
A) positive to negative
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When referring to a lead-acid automotive battery, the battery is considered to have 20 percent power available at ____ degrees Celsius.
A) 0.0 B) -12 C) -20 D) -40 |
C) -20
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A 12 volt starter operating at 10 volts and drawing 100 A of current use ________ Watts of power.
A) 1200 B) 1000 C) 120 D) 100 |
B) 1000
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A battery converts __________ energy to electrical energy.
A) mechanical B) chemical C) battery D) hydrogen |
C) battery
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The polarity of an electromagnet can be determined using the:
A) right-hand rule for coils. B) left-hand rule for coils. C) left-hand rule for conductors. D) right-hand rule for conductors. |
A) right-hand rule for coils.
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The effect of connecting lead-acid cells in series is to increase the _______ of the battery.
A) voltage B) power C) weight D) current |
A) voltage
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A lead-acid battery that is frozen should:
A) be only charged with a trickle charger. B) be only charged with a series charger. C) be only charged wit a fast charger. D) should not be charged. |
D) should not be charged.
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A/an____________ converts mechanical energy to electrical energy.
A) generator B) electric motor C) distributor D) transducer |
A) generator
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