Automotive Theory and Maintenance Units 1-4 Study Guide
What is true of washers?
A flat washer is used between a nut and a component to distribute load.
Technician A and technician B are discussing spark plug gap. Technician A says that the spark may be weak in strength if the gap is too wide. Technician B says that the spark will have high-voltage if the gap is too narrow. Who is correct?
A only
Two technicians are discussing AYES. Technician A says that AYES is directed toward high school students. Technician B says that anyone can enter AYES. Who is correct?
A only
Two technicians are discussing automotive jacks. Technician A says that floor jacks are the most common jack found in automotive shops. Technician B says that most floor jacks in shops are rated between six and eight tons. Who is correct?
A only
Two technicians are discussing wheel bearing lubricants. Technician A says that grease is the lubricant used on wheel bearings and suspension parts. Technician B says that there is only one type of wheel bearing grease. Who is correct?
A only
Two technicians are speaking about helicoils. Technician A says helicoils can be threaded into a properly prepared hole to repair damaged threads. Technician B says helicoils can be used to make external threads on a shaft or rod. Who is correct?
A only
What condition has resulted since the formation of OSHA?
Accidents related to unsafe working conditions have decreased
Two technicians are discussing bolts. Technician A says that the shank of a bolt is the area between the head and the threads. Technician B says that replacement bolts can be any grade as long as the thread pitch and size is correct. Who is correct?
A only
Two technicians are discussing dealership operations. Technician A says that the automotive industry is one of the largest employers in an area. Technician B says that the automotive industry does nothing to support local economies. Who is correct?
A only
Two technicians are discussing government agencies. Technician A says that the Environmental Protection Agency (EPA) was formed to protect the environment. Technician B says that the EPA is only concerned with storage of waste products. Who is correct?
A only
Two technicians are discussing journal measurements. Technician A says that two measurements are not necessary. Technician B says an out-of-round journal will not affect bearing life. Who is correct?
A only
A bore measurement must be made with what two tools?
An outside micrometer and a telescoping gauge
What statement is true concerning lifts?
Automotive lifts make work easier
Two technicians are discussing measuring bearing journals. Technician A says that measurements should be made on a machined area. Technician B says that unmachined areas are typically measured. Who is correct?
A only
Two technicians are discussing screwdrivers. Technician A says that the standard screwdriver is the most common screwdriver used. Technician B says that Phillips screwdrivers have a recessed-type head. Who is correct?
Both A and B
Two technicians are discussing snaprings. Technician A says special pliers should be used when removing and installing snaprings. Technician B says snaprings can be internal or external. Who is correct?
Both A and B
Two technicians are discussing soldering wires. Technician A says that electrical-type solder adds little or no resistance to a circuit. Technician B says that acid-base solder damages the surface of the wire. Who is correct?
Both A and B
Two technicians are discussing spark plug gaps. Technician A says that it is critical that spark plug gap be set. Technician B says that a round wire feeler gauge is used to measure gap. Who is correct?
Both A and B
What are the most important parts of a service repair order?
Concern, cause, and correction
Room temperature vulcanizing chemical sealants _____.
Cures when exposed to air
Multimeters _______.
For automobiles should be high impedence
What is true of installing bearing grease?
Grease can melt if installed improperly
Entry-level technicians usually receive _____ pay.
Hourly
In the brake system, the force applied is transmitted via _____ to the brakes at the front and rear axles.
Hydraulics
Which fuel is manufactured by removing it from other natural elements, and, when ignited, it burns clean with very few harmful emissions?
Hydrogen
What is a characteristic of keys (fasteners)?
Keys are used to retain parts on a shaft
What statement is true of MSDSs?
MSDSs provide for the employee's protection
What is the shape of a dowel pin?
Straight but tapered at the very end
Which tool is used to repair internal threads?
Tap
Two technicians are discussing alternative fuels. Technician A says that biodiesel is produced from vegetable oil that is used as cooking oil. Technician B says that biodiesel is produced from refined natural gas. Who is correct?
Tech A
The way you dress and act in the shop reflects on your professionalism.
True
Vehicle accessory systems include computers that can store memory of seat position, pedal position, and even steering wheel position.
True
Warranties are issued by the vehicle manufacturer for a specified time and mileage.
True
Washers help to distribute the clamping load on a part.
True
When measuring engine vacuum, a vacuum gauge is connected to a port that is directly tapped into the intake manifold
True
What is true concerning environmental protection?
Vehicle computers can be considered hazardous waste
What is an advantage of an independent repair facility?
Vehicle owners often have a good relationship with the technician
Which type of pliers is useful for locking onto an object?
Vise grip
ASE certified technicians have at least how much experience?
2 years
Two technicians are discussing bearing inserts. Technician A says that bearing inserts are used in wheel bearings. Technician B says bearing inserts prolong bearing life. Who is correct?
B only
Two technicians are discussing bore measurements. Technician A says that bores can be measured at the top with an outside micrometer. Technician B says that bores must be measured from the inside with a telescoping gauge. Who is correct?
B only
Two technicians are discussing engine vacuum readings. Technician A says that a fluctuating vacuum gauge is a sign of a vacuum leak. Technician B says that a fluctuating vacuum gauge is a sign of possible engine problems. Who is correct?
B only
Two technicians are discussing first aid treatments. Technician A says that treating for shock should be the last consideration in treating an injured person. Technician B says that going into shock can cause death quicker than the injury. Who is correct?
B only
Two technicians are discussing head gaskets. Technician A says head gaskets are typically made from paper. Technician B says head gaskets are under the most force of any gasket. Who is correct?
B only
Two technicians are discussing legal concerns. Technician A says that most shops are dishonest in dealing with customers. Technician B says that poorly repaired vehicles can be dangerous to operate. Who is correct?
B only
Two technicians are discussing pliers. Technician A says that pliers are typically used to loosen nuts and bolts. Technician B says that pliers act as an extension of a technician's fingers. Who is correct?
B only
Two technicians are discussing technician certification. Technician A says that training is usually only about technical matters. Technician B says that technicians also need legal and ethical training to correctly perform their job. Who is correct?
B only
Two technicians are discussing technician responsibilities. Technician A says that the basic profit-making portion of the shop's operations is performed by the service writer. Technician B says that technicians generally have the most personal money invested in the position. Who is correct?
B only
Two technicians are discussing the Environmental Protection Agency (EPA). Technician A says the EPA was formed in the 1890's to address pollution from factories. Technician B says that the EPA met with early resistance in its efforts to protect the environment. Who is correct?
B only
Which type of bearing utilize balls?
Ball bearings
Two technicians are discussing bearing loads. Technician A says that axial loads are also called thrust loads. Technician B says that radial load is also a load measurement. Who is correct?
Both A and B
Two technicians are discussing electrical wires. Technician A says that the current carrying capacity of a wire is directly rated to its cross-section. Technician B says that metric sizing of a wire directly refers to the cross-section of the wire. Who is correct?
Both A and B
Two technicians are discussing hybrid-powered vehicles. Technician A says that hybrid vehicles use the internal combustion motor to drive the generator that recharges the battery pack. Technician B says that the electric motors can be run through a power splitter or attached directly to the drive wheels. Who is correct?
Both A and B
Two technicians are discussing measuring bores with inside micrometers. Technician A says that extension spindles allow the measurement of cylinder bores. Technician B says that once the micrometer is inserted into the bore and extended, it should be tightened and removed. Who is correct?
Both A and B
Two technicians are discussing offset screwdrivers. Technician A says that offset screwdrivers are for working in tight spaces. Technician B says that offset screwdrivers come in a variety of sizes. Who is correct?
Both A and B
Which parts of a vehicle body become supporting members when closed?
Doors
Container labels must contain ________.
Exactly the same items found on the MSDS
A thread pitch gauge is designed to measure the grade of a bolt.
False
A torque-to-yield bolt can be reused.
False
Bolts use a threaded hole to hold automotive parts together.
False
Boots on the durm brake's wheel cylinders keep the brake fluid inside the bore.
False
Combination pliers are the least common type of pliers used.
False
Eye and face protection is not necessary in a shop setting.
False
Flat rate compensation generally discourages speed and efficiency in technicians.
False
Hybrid power vehicles run solely on electricity.
False
Larger automotive shops typically have only one level of management.
False
Most bearing failures result directly from improper installation.
False
The least common injury in a shop setting is an eye injury.
False
The length of the bolt is measured from the top of the head to the bottom of the thread.
False
The only purpose of the electrical system is to start and operate the engine.
False
Threaded fasteners are the least common fastener type.
False
Unibody frames are rigid parallel channels that run the entire length of the vehicle.
False
You are only responsible for your own safety in a shop setting.
False
Two technicians are discussing lifting heavy items. Technician A says that you should always keep your back bent while lifting. Technician B says that most of your lifting ability comes from your lower back. Who is correct?
Neither A nor B
Two technicians are discussing torque-to-yield bolts. Technician A says that torque-to-yield bolts are reusable. Technician B says torque-to-yield bolts are temporarily distorted when removed. Who is correct?
Neither A nor B
Which statement about vehicle brake systems is false?
Once the mechanical force is converted to hydraulic, it doesn't change back
What statement is true of recalls?
Recalls are issued only by the vehicle manufacturer
Gaskets are used to _____.
Retain lubricants or seal a chamber
Which of the following is not used to remove a race?
Screwdriver
What statement is true concerning service information?
Some service information may be VIN specific
Two technicians are discussing steering systems. Technician A says that the major components of a steering system are: steering wheel, linkage, and the dash support assembly. Technician B says that the major components include the steering wheel, linkage, steering knuckle, and gearing. Who is correct?
Technician B
What device is fastened to the end of a wire allowing the wire to connect to or disconnect from a component?
Terminal Connector
Who is legally responsible for the actions of the technicians and employees?
The business owner
Which statement reflects an original goal in developing electric-powered vehicles?
The power pack should be capable of quick recharge from 80 percent discharge
What statement is true concerning engine vacuum?
The vacuum gauge must be connected to a fitting in the intake manifold
What is true of manufacturer and vendor training?
Training conducted by local parts vendors is open to all technicians
A screw uses the set of threads it has to work together with the set of threads in the component in order to clamp the two parts together.
True
A tap and die set is designed for making threads, not repairing them.
True
All rollers or balls of a bearing must be lubricated for a bearing to be properly lubricated.
True
Bearings must be greased with the correct grease or they may fail.
True
Fire extinguishers must be matched to the type of fire you are fighting.
True
NATEF certifies automotive training programs.
True
Outside micrometers are used to measure journals or shafts to check for out-of-round.
True
RTV must be matched to the application for which it is being used for.
True
Roller bearings have an inner and outer race.
True
Runout is a term used to determine if there is a wobble in a wheel or disc.
True
Spark plug gaps are measured with a round feeler gauge
True
Speed sensors use a toothed ring to trigger the sensor.
True
The purpose of bushings is to limit the radial movement of a shaft.
True
Runout is measured with a(n) _____.
dial indicator
