ATEC 25 Final
A high-strength bolt is identified by
B Lines on the head
Normal battery drain (parasitic drain) with a vehicle with many computer and electronic circuits is _____.
20-30 milliamperes
The proper term for Vise Grips is
A. Locking pliers
The type of solder that should be used for electrical work is ____.
A. Rosin core
The higher the AWG number, ___
A. The smaller the wire diameter
How many watts are consumed by a starter motor if it draws 150 amperes at 10 volts?
C. 1500 watts
Which relay terminal is normally closed (N.C.) terminal?
D. 87a
What conditions are needed before the stop-start system functions?
All of the above
How many watts are consumed by a light bulb if 1.2 amperes are measured when 12 volts are applied?
A. 14.4 watts
The starter motor rotates about ____ times faster than the engine.
A. 18
All switches illustrated in schematics are
A. Are shown in there normal position
Many vehicle manufacturers recommend that a special electrical connector be installed between the battery and the battery cable when testing for _____.
A. Battery drain (parasitic drain)
Which act or organization regulates air-conditioning refrigerant?
A. Clean Air Act (CAA)
Which battery rating is tested at 0F (-18C)?
A. Cold-cranking amps (CCA)
What type of hammer is plastic coated, has a metal casing inside. and is filled with small lead balls?
A. Dead blow hammer
Used engine oil should be disposed of by all except the following methods
A. Disposed of in regular trash
The brushes are used to transfer electrical power between ____.
A. Field coils and the armature
If the voltage increases in a circuit, what happens to the current (amperes) if the resistance remains the same?
A. Increase
What makes a battery low maintenance?
A. Material is used to construct the grids
Creating electricity by exerting force on a crystal is used in which type of sensor?
A. Piezoelectricity
For an electrical device to operate, it must have
A. Power and a ground
Carbon and silicon are examples of
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
Wetted asbestos dust is considered to be
A. Solid waste
A yellow-handle snip is designed for
A. Straight cuts
A battery high rate discharge test is being performed on a 12 volt battery. Tech A says a good battery should have a voltage reading of higher than 9.6 volts while under load at the end of the 15 second load test. Tech B says that the battery should be discharged to twice its CCA rating. Which technician is correct?
A. Tech A only
A technician connects one lead of a digital voltmeter to the positive terminal of the battery and the other meter lead to the battery terminal of the starter solenoid and then cranks the engine. During cranking, the voltmeter displays a reading of 878 mV. Technician A says that this reading indicates that the battery cable has too high resistance. Tech B says that this reading indicates that the starter is defective. Which tech is correct?
A. Tech A only
Tech A says that distilled or clean drinking water should be added to a battery when the electrolyte level is low. Tech B says that fresh electrolyte should be added. Which tech is correct?
A. Tech A only
A technician is performing a wire repair on a circuit under the hood of the vehicle. Technician A says to use solder and adhesive-lined heat shrink tubing or a crimp and seal connector. Technician B says to solder and use electrical tape. Which technician is correct?
A. Technician A only
If teh clearance between the starter pinion and the engine flywheel is too great, _____.
A. The started will produce a high pitched whine during cranking
A potentiometer, a three-wire variable resistance, is used in which type of sensor?
A. Throttle position
When testing a relay using an ohmmeter, which two terminals should be touched to measure the coil resistance
B. 85 and 86
Which statements are true about wire, terminals, and connectors?
B. A connector is usually a plastic piece where the terminal locks in
Gasoline should be stored in approved containers that include what color(s)?
B. A red container
Which unit of electricity does the work in a circuit?
B. Ampere
To determine if a product or substance used is hazardous, consult
B. An SDS (MSDS)
A growler test is used to test what starter component?
B. Armatures
What battery rating is tested at 32F (0C)?
B. Cranking amps
What is the symbol for voltage used in calculations?
B. E
Wrenches are made from
B. Forged alloy steel
An electrical conductor is an element with ____ electrons in its outer orbit.
B. Less than 4
When a battery becomes completely discharged, both positive and negative plates become _____ and the electrolyte becomes _____.
B. PbSO4/H20
Series wound electric motors ____..
B. Produce maximum power at 0 RPM
Like charges
B. Repel
Which circuit failure is most likely to cause a fuse to blow
B. Short to ground
A discharge indicator (eye) operates by showing green or red when the batter is charged and dark if the battery is discharged. This charge indicator detects____.
B. Specific gravity
What unit contains a hold-in winding and a pull-in winding?
B. Starter solenoid
A fastener that uses threads on both ends is called a
B. Stud
A V6 is being checked for starter amperage draw. The initial surge current was about 210 amperes and about 160 amperes during cranking. Tech A says the starter is defective and should be replaced. because the flow exceeds 200 amperes. Tech B says that this is normal current draw for a starter motor on a V6 engine. Which technician is correct?
B. Tech B only
Two technicians are discussing torque wrenches. Technician A says that a torque wrench is capable of tightening a fastener with more torque than a conventional breaker bar. Technician B says that a torque wrench should be calibrated regularly for the most accurate results. Which technician is correct?
B. Technician B only
A battery date code sticker indicates D8. What does this mean?
B. The date it was shipped from the factory was April, 2018
When jump starting ____.
B. The last connection should be to the engine block of the dead vehicle
As temperature increases
B. The resistance of a conductor increases
Where is connector C250?
B. Under the dash
The _____ is a unit of electrical pressure.
B. Volt
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 ________.
B. short to ground
When measuring the specific gravity of the electrolyte, the maximum allowable difference between the highest and lowest hydrometer reading is ____.
C. 0.050
If 12 volts are being applied to a resistance of 3 ohms, ____ amperes will flow.
C. 4
On a wiring diagram. S110 with a ".8 BRN/BLK" means___
C. A splice of brown with black stripe, wire sizing 0.8mm^2 (18 gauge AWG)
The neutral safety switch is located _____.
C. Between the ignition switch and the starter solenoid
Technician A says that a good relay should measure between 60-100 ohms across the coil terminals. Technician B says that OL should displayed on an ohmmeter when touching terminals 30 and 87. Which technician is correct?
C. Both A and B
Technician A says that there is often more than one circuit being protected by each fuse. Technician B says that more than one circuit often shares a single ground connector. Which technician is correct?
C. Both A and B
A vehicle equipped with a V8 engine does not crank fast enough to start. Technician A says that the battery could be discharges or defective. Tech B says that the negative cable could be loose at the battery. Which tech is correct?
C. Both Tech A and B
Tech A says that a discharged battery can cause solenoid clicking. Tech B says that a discharged battery or dirty corroded battery cables can cause solenoid clicking. Which tech is correct?
C. Both Tech A and B
Two technicians are discussing what could be the cause of slow cranking and excessive current draw. Tech A says that an engine mechanical fault could be the cause. Tech B says that the starter motor could be binding or defective. Which technician is correct?
C. Both Tech A and B
Two technicians are discussing fuse testing. Technician A says that a test light should light on both test points of the fuse if it is okay. Technician B says the fuse is defective ifa test light only lights on one side of the fuse. Which technician is correct?
C. Both Technician A and B
Technician A says that a two-wire variable resistor is called a rheostat. Technician B says that a three-wire variable resistor is called a potentiometer. Which technician is correct?
C. Both technician A and B
Permanent magnets are commonly used for what part of the starter?
C. Field coils
Which battery rating is expressed in minutes?
C. Reserve capacity
Metric wire size is measured in units of
C. Square millimeters
Deep cycling means ____.
C. The battery is fully discharged then charged
The faster teh starter motor rotates ____.
C. The less current it draws from the battery
Hazardous materials include all of the following except
C. Water
An oil filter should be hot drained for how long before disposing of the filter?
D. 12 hours
The normal cranking speed of the engine is about _____.
D. 200 RPM
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?
D. 200 amperes
A short circuit can be located using a
D. All of the above
Battery maintenance includes ____.
D. All of the above
Exposure to asbestos dust can cause what condition?
D. All of the above
High resistance in an electrical circuit can cause
D. All of the above
The correct location for the pads when hoisting or jacking the vehicle can often be found in the
D. All of the above
The positive battery plate is ____.
D. All of the above
What automotive devices may contain mercury?
D. All of the above
What is true about the plastic conduit covering the wiring?
D. All of the above
When charging a maintenance-free (lead-calcium) battery, _____.
D. All of the above are correct
Slow cranking by the starter can be caused by all except the following ____
D. An open neutral safety switch
What component or circuit can keep the engine form cranking?
D. Any of the above
For the best working position, the work should be
D. At chest or elbow level
A fully charged battery should indicate ____.
D. Both A and B
Bench testing of a starter should be done when?
D. Both A and B
What causes a fuse to blow?
D. Both A and B
Many ground straps are uninsulated and braided because
D. Both A and C are correct
Which statement is true about fuse ratings?
D. Both B and C
When load testing a battery, which rating is usualy used to determine how much load to apply?
D. CCA
All of the following are proper ways to dispose of a drained oil filet except
D. Considered to be hazardous waste and disposed of accoringly
What gasses are released from a battery when it is being charged?
D. Hydrogen and oxygen
The fact that a voltage can be created by exerting force on a crystal is used in which type of sensor?
D. Knock sensor
The proper term for Channel Locks is
D. Multigroove adjustable pliers
Two technicians are discussing finding short to ground using a test light. Technician A says that the test light, connected in place of the fuse, will light when the circuit that has the short is disconnected. Technician B says that the test light should be connected to the positive and negative terminals of the battery during this test. Which technician is correct?
D. Neither Technician A or B
Starter motors operate on the principle that ____.
D. The armature rotates from a strong magnetic field toward a weaker magnetic field
