Intro to Auto Ch. 20,21,23,24,25 Test

An acceptable charging circuit voltage on a 12-volt system is ________. A) 13.5 to 15 volts B) 12 to 14 volts C) 12.6 to 15.6 volts D) 14.9 to 16.1 volts

A) 13.5 to 15 volts

When the oil pressure drops to between ____ and _____ PSI, the oil pressure lamp lights up. A) 3 and 7 B) 10 and 30 C) 30 and 50 D) 50 and 70

A) 3 and 7

If an insulated wire rubbed through a part of the insulation and the wire conductor touched the steel body of a vehicle, the type of failure would be called ________. A) Short-to-voltage B) Short-to-ground C) Open D) Chassis ground

B) Short-to-ground

Which circuit failure is most likely to cause a fuse to blow? A) Open B) Short-to-ground C) Short-to-voltage D) High resistance

B) Short-to-ground

Which bulb uses natural amber glass? A) 194 B) 194NA C) 168 D) 1157

B) 194NA

If a 2057 bulb is burned out, which bulb should be used to replace it? A) 1157 B) 2057 C) 2057NA D) 3057

B) 2057

Which unit of electricity actually measures the amount of current flow? A) Volt B) Ampere C) Ohm D) Coulomb

B) Ampere

A bulb is being measured using an ohmmeter and the meter display shows OL. This means that the bulb is __________ A) Good B) Bad C) Normal for a tail light bulb but not a brake light bulb D) Partially bad (will be dimmer than normal)

B) Bad

What battery is used mostly when testing a battery to see if it is performing normally? A) CA B) CCA C) MCA D) Reserve capacity

B) CCA (cold cranking amp)

A lane departure warning system uses ___________. A) Radar to determine where the road is located B) Cameras to infrared sensors C) GPS to determine the location of the vehicle on the road D) All of the above are used

B) Cameras to infrared sensors

A type of electronic battery testing that does not place a load on the battery is called __________. A) VAT test B) Conductance tester C) Load tester D) Ammeter tester

B) Conductance tester

What is the symbol for voltage used in calculations? A) R B) E C) EMF D) I

B) E

Starters rotate the engine by a _________. A) Drive belt B) Gear C) Chain D) Shaft from the engine crankshaft

B) Gear

Which type of headlight has a blue color? A) Halogen B) HID (xenon) C) Sealed beam D) None of the above

B) HID (xenon)

An electrical conductor is an element with ______________ electrons in its outer orbit. A) Less than 2 B) Less than 4 C) Exactly 4 D) More than 4

B) Less than 4

The letters "NA" on a light bulb trade number means __________ A) Not available B) Natural Amber C) Not applied D) Any of the above depending on the bulb

B) Natural Amber

Like charges _____________. A) Attract B) Repel C) Neutralize each other D) Add

B) Repel

A complete circuit has _________. A) A power side electrical B) An electrical load device C) A return path D) All of the above

D) All of the above

OnStar uses _________. A) GPS Information B) Digital cellular phone service C) Automatic airbag deployment notification D) All of the above

D) All of the above

What should the driver do if the TPMS warning lamp comes on steady? A) Check the inflation pressures of all tires B) Use pressure printed label on the decal near the driver's door of the specified pressure C) Some vehicles need to have the spare tire checked D) All of the above

D) All of the above

High resistance in an electrical circuit can cause ___________. A) Dim lights B) Slow motor operation C) Clicking of relays or solenoids D) All of the above

D) All the above

Which of the following are conductors? A) Gold B) Silver C) Copper D) All the above

D) All the above

What is used for daytime running lights? A) The high beam headlights at reduced intensity B) Parking lights C) Separate daytime running lights (DRL) D) Any of the above

D) Any of the Above

A dash warning light that looks like a battery means ____________. A) A fault with the battery B) A fault with the alternator C) A fault with the electrical system D) Any of the above

D) Any of the above

If the maintenance reminder light comes on, this means that the owner should ____________. A) Change oil B) Replace tires C) Replace air filter D) Any of the above

D) Any of the above

The engine will not start if _____________. A) The gear selector is in "D" B) The gear selector is in "R" C) The gear selector is in "L" D) Any of the above

D) Any of the above

How does changing the size of the tires affect the speedometer reading? A) A smaller diameter tire causes the speedometer to read faster than the actual speed and more than the actual mileage on the odometer. B) A smaller diameter tire causes the speedometer to read slower than the actual speed and more than the actual mileage on the odometer. C) A larger diameter tire causes the speedometer to read faster than the actual speed and more than the actual mileage on the odometer. D) A larger diameter tire causes the speedometer to read slower than the actual speed and more than the actual mileage on the odometer.

A) A smaller diameter tire causes the speedometer to read faster than the actual speed and more than the actual mileage on the odometer.

When measuring battery voltage, set the meter to read ___________. A) DC volts B) AC volts C) Hertz (Hz) D) Amperes (A)

A) DC volts

An electrical protection device is usually a ____________. A) Fuse B) Wire C) Electrical load device D) Switch

A) Fuse

If the voltage increases in a circuit, what happens to the current (amperes) if the resistance remains the same? A) Increases B) Decreases C) Remains the same D) Cannot be determined

A) Increases

Carbon and Silicon are examples of __________. A) Semiconductors B) Insulators C) Conductors D) Photoelectric Materials

A) Semiconductors

If two insulated wires were to melt together at the point where the copper conductors touched each other, the type of failure would be called a(n) ___________. A) Short-to-voltage B) Short-to-ground C) Open D) Floating ground

A) Short-to-voltage

A battery high-rate discharge (load capacity) test is being performed on a 12-volt battery. Technician A says that a good battery should have a voltage reading of higher than 9.6 volts while under load at the end of the 15-second test. Technician B says that the battery should be discharged (loaded) to twice its CCA rating. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians B only D) Neither technician A nor B

A) Technician A only

Technician A says that metal-type tinting can affect the systems. Technician B says most navigation satellites require a monthly payment for use of the GPS navigation system. Which technician is correct? A) Technician A B) Technician B C) Both Technician A and B D) Neither Technician A nor B

A) Technician A only

Technician A says that a navigation system uses cell phone tower information to locate the vehicle on streets and highways. Technician B says the system uses satellite. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technicians A nor B

B) Technician B only

A technician replaced a 1157NA with a 1157A bulb. Which is the most likely result? A) The bulb is brighter because the 1157A candlepower is higher B) The amber color of the bulb is a different shade. C) The bulb is dimmer because the 1157A candlepower is lower D) Both B and C

B) The amber color of the bulb is a different shade

When jump starting, __________. A) The last connection should be the positive post of the dead battery B) The last connection should be the engine block of the dead vehicle C) The alternator must be disconnected on both vehicles D) Both A and C

B) The last connection should be the engine block of the dead vehicle

As temperature increases _________. A) The resistance of a conductor decreases B) The resistance of a conductor increases C) The resistance of a conductor remains the same D) The voltage of the conductor decreases

B) The resistance of a conductor increases

As the length of a wire increases, _______. A) The resistance of a wire decreases B) The resistance of a wire increases C) The resistance of a wire remains the same D) The voltage of the wire decreases

B) The resistance of the wire increases

The ___________ is a unit of electrical pressure. A) Coulomb B) Volt C) Ampere D) Ohm

B) Volt

If 12 volts are being applied to a resistance of 3 ohms, ________ amperes will flow. A) 12 B) 2 C) 4 D) 36

C) 4

If 200 amperes flow from the positive terminal of a battery and operate the starter motor, how many amperes will flow back to the negative terminal of the battery? A) Cannot be determined B) Zero C) One-half (about 100 amperes) D) 200 amperes

D) 200 Amperes

A battery should be charged at what rate? A) High or fast depending on the capacity of the charger B) At a rate of 1% of the CCA rating of the battery C) At a rate that does not cause the battery to get hotter than 125° D) Both B and C are correct

C) At a rate that does not cause the battery to get hotter than 125°

A brake warning lamp on the dash remains on whenever the ignition is on. Technician A says that there could be a fault in the hydraulic brake system. Technician B says that the problem could be due to a stuck parking brake switch. Which technician is correct? A) Technician A B) Technician B C) Both Technician A and B D) Neither Technician A nor B

C) Both Technician A and B

Technician A says that the bulb trade number is the same for all bulbs of the same size. Technician B says that a dual-filament bulb has different candlepower ratings for each filament. Which technician is correct? A) Technician A B) Technician B C) Both Technician A and B D) Neither Technician A nor B

C) Both Technician A and B

Technician A says that HID headlights give a bluish-colored light. Technician B says the high beam lights can be used as daytime running lights in some vehicles. Which technician is correct? A) Technician A B) Technician B C) Both Technician A and B D) Neither Technician A nor B

C) Both Technicians A and B

Interior overhead lights (dome lights) are operated by doorjamb switches that __________. A) Complete the power side of the circuit B) Complete the ground side of the circuit C) Move the bulb(s) into contact with the power and ground D) Complete either A or B depending on application

D) Complete either A or B depending on Application

The Greek letter Omega (Ω) represents what unit of electricity? A) Coulomb B) Volt C) Ampere D) Ohm

D) Ohm

The __________ is a unit of electrical resistance. A) Coulomb B) Volt C) Ampere D) Ohm

D) Ohm

Alternators are driven by a __________. A) Drive belt B) Gear C) Chain D) Shaft from the engine crankshaft

D) Shaft from the engine crankshaft