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? *