Auto Tech review 4
harden; more difficult
A battery may also become sulfated, meaning the surfaces of the plates ______, making it _______ for the acid to be absorbed into the plate. (8.2.5) *
during oil changes and in the fall
A good time to check batteries is _______. (8.2.4) *
Large; short
A jump device contains a relatively ____ battery and has ____ cables and spring-loaded clamps attached to it that can be connected directly to the dead battery.
safety glasses
A technician must always wear ______________ when working on a battery. (8.2.4) *
cable terminals and battery posts
After charging the battery, it is good practice to clean the _____. (8.2.5) *
Coolant dye kit
After verifying a coolant leak is present, which tool could aid in detecting the source of the leak? *
Exhaust Gas Analyzer
After verifying a coolant leak is present, you find no external leaks present. Which tool would be used to determine if the leak is due to a leaking head gasket or damaged head or block? *
false
All manufacturers recommend removing the negative battery terminal while charging a battery to reduce risk to the vehicle's electronics. (8.2.5) * true or false
preload
All wheel bearings need the proper end play or ______________ to operate correctly. (7.6.1) *
negative
Always remove the _______ terminal first when disconnecting battery cables. (8.2.4) *
true
As plate material becomes deposited in the bottom of the battery case, it eventually shorts out the plates and renders that cell useless, which causes the battery to fail under load. (8.2.5) * true or false
true
At hotter temperatures, battery performance increases, but if the temperature increases too high, battery life may be compromised. (8.2.5) * true or false
scrapping the corrosion away
Battery terminal oxidation can be treated by: (8.2.4) *
crimped and soldered
Battery terminals are usually _________ onto the battery cables to ensure strong, low-resistance connections. (8.2.4) *
electronics and alternator
Because of the risk of damaging the __________, many manufacturers (and tow companies) are now refusing to jump-start newer vehicles or authorize that practice.
running clearance
Because tapered roller bearing assemblies use tapered components, the wheel bearing assembly must be adjusted to have the proper ________ between the tapered rollers and races when the bearing assemblies are installed. (7.6.1) *
true
Maintenance-free batteries are fully sealed and do not require the electrolyte to be topped off. (8.2.4) * true or false
tongue and groove spring
Most automotive axle seals typically consist of all of the following, EXCEPT: (7.6.1) *
baking soda and water
Clean the battery with a mixture of _______, but make sure not to get any of that mixture down inside of the battery, as it will tend to neutralize the electrolyte, ruining the battery. (8.2.4) *
true
Dirt on top of the battery causes premature self-discharge of the battery as current "leaks" across the path of dirt or grime. (8.2.4) * true or false
trickle charger & high rate charger.
Name two types of battery chargers that are used in automotive applications. (8.2.5) *
slow; less stressful; fast
If charging is needed, ____ charging is _____ on a battery than ____ charging is. (8.2.5) *
is being charged or recently charged
If the battery ___________, ensure that the space around the battery is well ventilated. (8.2.4) *
drops; slowling
In cold weather, battery performance ____ dramatically due to a _____ of the chemical reaction process. (8.2.5) *
true
Leaving a battery on a slow charger overnight and then finding that it fails a load test in the morning is an indication of a sulfated battery. (8.2.5) * true or false
Wheel bearing grease or gear lube depending on manufacturer recommendation
Lubrication of serviceable tapered wheel bearing assemblies is accomplished in which way? (7.6.1) *
true
Never wear any conductive jewelry, such as neck chains, watches, or rings, when working on or near batteries, as the jewelry may provide an accidental short-circuit path for high currents. (8.2.4) * true or false
current flow and voltage
On some vehicles, the power train control module (PCM) is able to control the level of _________ at which the battery is charged. (8.2.5) *
true
Removing the negative or ground terminal first reduces the possibility of a wrench creating an accidental short to ground from the positive terminal to any grounded metal surface, which would cause a very large spark. (8.2.4) * true or false
true
Reversing current flow will likely damage some or all of the electronic control units (ECUs) throughout the vehicle. (8.2.4) * true or false
false
Serviceable wheel bearings should be serviced periodically only if a faulty wheel bearing is suspected. (7.6.1) * True or False
true
Smart chargers and battery management systems use the feedback from the temperature probe to manage the charge rate of a battery, ensuring the battery is at capacity and the temperature is within the optimal range, thereby promoting longer battery life. (8.2.5) * true or false
True
Some front axle housings on four-wheel drive vehicles use separate, sealed bearing chambers to hold a quantity of gear lube. (7.6.1) * True or False
true
Spike-protected leads have a built-in device to prevent damaging electrical spikes from reaching electronic equipment.
True
Tapered roller bearing assemblies are generally used in opposing pairs so they can control side movement (thrust) in both an inward and outward direction. (7.6.1) * True or False
both
Technician A says that during an oil change, the battery and the entire system should be checked for reliability. Technician B says that the battery must work harder in the winter, so the fall is a good time to check the vehicle's charging/starting system. Who is correct? (8.2.4) *
Neither
Technician A says that if a tapered roller bearing is adjusted too loose, the bearing will bind and overheat. Technician B says that if a taper roller bearing is adjusted too tight, it will have too much side-to-side and up-and-down movement. Who is correct? (7.6.1) *
Technician b
Technician A says that if you add pre-lube to a sealing lip of an axle seal, it will cause the seal to leak causing the bearings to fail. Technician B says that when you install a seal, always remember to pre-lube the sealing lip with a small amount of oil or grease. Who is correct? (7.6.1) *
technician b
Technician A says that packing a wheel bearing assembly can be done by hand by smearing some grease around the outside of the bearing. Technician B says that a wheel bearing assembly can be packed with a bearing packer. Who is correct? (7.6.1) *
both
Technician A says that the positive post on a battery can be identified by being a larger size than the negative post. Technician B says that the positive post on a battery can be identified by the + or POS marking on the casing next to the post. Who is correct? (8.2.5) *
Both
Technician A says that the wheel bearing grease seal is designed to contain the lubricant. Technician B says that the wheel bearing grease seal is designed to keep out contaminants. Who is correct? (7.6.1) *
Technician b
Technician A says that you should always reuse as much of the old grease as possible to prevent waste. Technician B says that you should always use new grease seals and cotter pins when servicing wheel bearings. Who is correct? (7.6.1) *
Slave; charged; discharged
The ____ battery is connected in parallel from the slave (_____) battery to the host (_____) battery to provide additional capacity to crank and start the vehicle. (8.2.6) *
garter spring
The ________ helps maintain an adequate seal if the parts are slightly out of alignment or if there is a small amount of runout or clearance between the seal and shaft. (7.6.1) *
true
The battery provides the necessary standby (and reserve) power to get things started. (8.2.6) * true or false
Bearing cage
The component in a wheel bearing that maintains the proper spacing between the roller bearings or ball bearings is called a(n) ____________. (7.6.1) *
true
The larger positive and smaller negative terminals are slightly different in size to ensure correct connection of the cables when installing or servicing the battery. (8.2.4) * true or flase
cone design
The most common battery cable terminal is a ________ that provides a large surface contact area with the ability to tighten the terminal onto the battery post using a nut and bolt. (8.2.4) *
dirty batteries and corroded battery cables
The most common causes of vehicle no-starts is _______. (8.2.4) *
True
The term "inner race" describes the inside component of a wheel bearing that has a smooth, hardened surface for rollers or balls to ride on. (7.6.1) * True or False
side terminal
This terminal is a flat circle with a center bolt that bolts the terminal tightly to the battery connection. (8.2.4) *
true
To tell if the surface of the battery needs to be cleaned, use a digital volt-ohmmeter (DVOM) set to volts to measure the voltage on the surface of the top of the battery. (8.2.4) * true or false
technician b
Two technicians are discussing battery charging. Technician A says that it is better for the battery to be fast charged. Technician B says that it is better for the battery to be slow charged. Who is correct? (8.2.5) *
true
Using new grease seals will help prevent grease leaks. (7.6.1) * true or false
Disconnecting the negative terminal and then the positive terminal before removal
What is the correct sequence for removing a battery? (8.2.4) *
Outer race
What term is used to describe the outside component of a wheel bearing that has a smooth, hardened surface for rollers or balls to ride on? (7.6.1) *
True
Wheel bearing side load conditions occur when the vehicle is cornering. (7.6.1) * True or False
false
When servicing wheel bearings, it is ok to mix different types of grease. (7.6.1) * True or False
Maintenance Free and sealed battery
Which battery has a visual indicator (a single-cell hydrometer float) that provides information on the status of the charge and condition of one of the battery cells? (8.2.4) *
bore gauge
Which of the following is NOT a common tool used to maintain and repair wheel bearings? (7.6.1) *
Coolant System pressure tester
Which tool is used to determine if a coolant leak is present? *
