CDX - Safety and Foundation Pretest, Chapters 1-2

Which of the following organizations certify technicians in all areas of a vehicle?

ASE

A coworker is discovered to be injured, and you are working by yourself. What should be done to get help for the injured worker?

After surveying the accident scene and checking the responsiveness of the coworker, leave the injured coworkers and call 911.

The unibody design was first used in _____ and then spread to automobiles.

Aircraft

Technician A says that the production of vehicles today requires a mix of robotic and human assembly. Technician B says that most of the parts on a vehicle are preassembled into unit assemblies before they reach the assembly line. Who is correct?

Both A and B

Torque in the imperial system is measured by the _____.

Foot-pound (ft-lb)

An automotive sedan has an enclosed body, with a maximum of _____ doors to allow access to the passenger compartment.

Four

Drivetrain layouts accommodate _____ common drive wheel arrangements.

Four

Which vehicles can switch from two-wheel drive by engaging the transfer case attached to the transmission?

Four-wheel drive

Which vehicles can switch from two-wheel to four-wheel drive by engaging the transfer case attached to the transmission?

Four-wheel drive

Which of the following is a typical engine mounting position on vehicles?

Front; mid; rear

Which of the following is typically a secured opening in a vehicle?

Fuel door; hood; tailgate

Which of the following is typically found on a Vehicle Safety Certification (VSC) label?

Gross Vehicle Weight Rating and Gross Axle Weight Rating; Recommended tire inflation pressure; Paint and trim codes

A _____ is a place where hazards exist.

Hazardous environment

Which of these systems creates and delivers high voltage sparks at the right time to ignite the air-fuel mixture in the combustion chamber?

Ignition system

The most common type of eye protection is a _____, which must be marked with "Z87.1" on the lens and frame.

Pair of safety glasses.

The customer states when he turns the key in an attempt to start the engine, nothing happens. Which system should he check first?

Starting system

Hatchbacks are versatile vehicles, combining some of the benefits of both sedans and _____.

Station wagons

Crash avoidance systems are essential for passenger safety. Tech A states that this system helps in warning drivers in case of low tire pressure. Tech B states that this system takes evasive actions in case of potential accidents. Who is correct?

Tech B

Tech A says that pushing on the brake pedal stops the vehicle by converting chemical energy into thermal energy. Tech B says that brake pedal pressure is transmitted to the brakes hydraulically. Who is correct?

Tech B

Technician A says dealerships perform maintenance, diagnosis, and warranty repairs. Technician B says dealership technicians rarely are sent for manufacturing training. Who is correct?

Technician A

Technician A says drivability technicians use scan tools and meters to perform diagnostic work. Technician B says drivability technicians rarely use exhaust gas analyzers and the lab scope to perform diagnostic work. Who is correct?

Technician A

Heavy line technicians must be able to research service information and use the information to help determine the cause of the problem and make the appropriate repairs.

True

Henry Ford paved the way for automobiles to be:

more affordable.

The engine bay is the center of activity where all of the following may be carried out, EXCEPT:

radio is replaced.

All of the following are typical duties of a chassis technician, EXCEPT:

replacing water pumps.

All the statements below are true EXCEPT:

service consultants work only with customers.

A technical service bulletin may provide information on all of the following except:

the scheduled maintenance chart.

The repair order is the technician's main point of contact with the customer. So it is critical that the customer service staff get an accurate, complete, and yet concise record of the customer's concern(s) along with any information and details about the concern.

True

To diagnose and repair emission failures on vehicles in some localities, technicians must be certified by the appropriate local agency.

True

Technician A says an independent shop is a type of vehicle repair facility. Technician B says a specialty shop is a type of vehicle repair facility. Who is correct?

Both A and B

Technician A says engines can be mounted longitudinally in a chassis. Technician B says engines can be mounted transversely in a chassis. Who is correct?

Both A and B

Technician A says that dealership technicians generally have access to manufacturers' training to help prepare them as technicians. Technician B says that an independent shop works on a wide variety of equipment that requires a broad skill level in technicians. Who is correct?

Both A and B

Technician A says service consultants work with both customers and technicians. Technician B says service consultants are the first point of contact for the customer and provide advice and assistance to customers concerning their vehicle. Who is correct?

Both A and B

Which of these does not define the drivetrain layout?

Engine capacity.

Which of the following is NOT a type of repair facility?

Filling station

A _____ is usually connected to; a business that runs multiple vehicles that is maintained and repaired in-house such as a rental car company, or it could be a government agency, such as a city, county, or police department that would perform maintenance and repair of its vehicles and equipment.

Fleet shop

Which of the following is a typical component in the power flow of torque from an engine?

Gears in the transmission; gears in the final drive

Use only specially designed _____ jumper cables to start a vehicle with a dead battery.

Heavy-duty

Which of the following is NOT a question you should ask yourself as you prepare to be as safe as possible?

How can I finish this task as fast as possible?

Technician A says that when operating 4WD vehicles, the 4WD system should only be engaged on loose or slippery surfaces. Technician B states that when operating AWD vehicles, it is not necessary to switch between 2WD and 4WD, as the system is designed to drive all four wheels all of the time. Which is correct?

Both A and B

The final drive provides a final gear reduction to _____ the torque before applying it to the drive axles.

Multiply

Which of the following is a classification for a lifting mechanism used in the automotive industry?

Pneumatic

Technician A states that a vehicle with a manual transmission uses a clutch to engage and disengage the engine from the transmission. Technician B states that engine torque is transmitted through the clutch to the transmission or transaxle. Who is correct?

Both A and B

Technician A states that the A/C and Refrigerants certification (609) is necessary if a technician will be handling refrigerants. Technician B states that the Advanced Engine Performance L1 certification can be obtained through ASE. Who is correct?

Both A and B

Technician A states that the scheduled service history can be recorded in a service booklet. Technician B states that the scheduled service history can be recorded in the company's records. Who is correct?

Both A and B

Which of the following systems controls the oscillating movement of the wheels over bumps?

Suspension system

Which of these components multiples the torque from the engine by running it it through a number of different gear ratios?

Transmission

If water gets into the air lines, it may damage the inside workings of air tools.

True

Parts programs are the modern-day versions of parts manuals.

True

The brake master cylinder gets assistance from a power booster that amplifies the hydraulic pressure to the wheel brake units.

True

When disengaged, the vehicle transfer case is coupled to one drive shaft only.

True

The drive type that is becoming increasingly popular is all-wheel drive (AWD), with all four wheels driven by the engine all the time.

True.

The _____ is constructed of a large number of steel sheet metal panels that are precisely formed in presses and spot-welded together into a structural unit.

Unibody design

The natural angle for a _____ automotive engine is 120 degrees, for a V10 is 72 degrees, and for a V12 is 60 degrees.

V6

All of the following designations are used in measuring torque EXCEPT:

a meter-pound.

When compared to early vehicles, modern vehicles do not have:

as many maintenance requirements.

A coupe has _____ doors.

two

Which of the following is NOT a common angle between the banks of cylinders in an engine configuration?

25 degrees

The power to the drive wheels is not necessarily split 50/50 between the front and rear wheels; torque is usually split _____ between the front and rear wheels, respectively.

60% / 40%

Choose the correct statement:

An automatic transmission uses a torque converter instead of a clutch.

Henry Ford's _____ approach made assembly much more efficient, increasing the number of vehicles that could be built in a shift and thereby lowering production costs.

Assembly line

The transfer case locks the drive shafts together and directs torque through them to _____.

Both axles

Which of the following statements is true?

Both live and dead axles support the weight of the vehicle.

A _____ is an underlying supporting structure for vehicles.

Chassis

_____ diagnose, repair, and service steering system components and suspension systems on all types of vehicles.

Chassis technicians

A(n) _____ involves penetration of a bone into a vital organ.

Complicated fracture

Full-time 4WD sedans are lighter and less rugged than _____ types and usually operate at higher speeds.

Conventional off-road

A(n) is commonly known as a cabriolet in Europe.

Convertible

Inside the final drive, a _____ divides the torque to the axles.

Differential gear set

Which of the following would be the most likely to program or reprogram (reflash) powertrain control modules (PCMs) using computerized equipment?

Drivability technicians

An _____ may be held daily in the automotive shop areas to catch safety issues that are of a more immediate nature.

Informal inspection

Chemical energy can be converted into mechanical energy through the operation of an _____.

Internal combustion engine; electric motor

Axles come in two configurations: _____.

Live axle and dead axle

Technician A says that a piston engine has a roughly triangular shaped rotor. Technician B says that V engines have horizontally opposed cylinders. Who is correct?

Neither A nor B

Technician A says the shop foreman is the frontline contact for customer relations. Technicians B says that the service consultant typically reports directly to the business owner. Who is correct?

Neither A nor B

The natural angle of the "V" in an automotive engine tends to vary according to the number of cylinders and can be found by dividing _____ degrees by the number of cylinders.

720

Tech A says a conventional vehicle with the engine at the front and drive wheels at the rear uses a driveshaft to transmit torque from the transmission to the final drive. Tech B says the automatic transmission uses a torque converter instead of a clutch. Who is correct?

Both A and B

Technician A says a fleet shop is usually connected with either a business that runs multiple vehicles or with equipment that is maintained and repaired in-house. Technician B says a government agency such as a city or county is an example of fleet operations. Who is correct?

Both A and B

When disposing of used liquids:

Petroleum products can be mixed together.

Which of the following is NOT a type of drivetrain layout?

Rear-engine, front-wheel drive

Special certification is required for technicians who handle which of the following systems?

Refrigerants and A/C systems

All of the following systems assist in avoiding accidents EXCEPT the:

SRS systems.

_____ are popular in the United States since they can easily be used to carry out functions that would otherwise require several different vehicles.

SUVs

On an engine hoist, the _____ at various extensions is normally marked on the lifting arm.

Safe lifting capacity

The operating capacity of lifting equipment is usually expressed as the _____.

Safe working load (SWL)

A _____ has an extended roof that goes all the way to the rear of the vehicle.

Station wagon

Technician A says that a live axle is an axle that drives the vehicle. Technician B says that a dead axle means that the axle can be steered. Who is correct?

Technician A

Technician A says that a technician can specialize in different areas based on his or her interest and ability. Technician B says that most specialty shops, such as transmission shops, primarily work on only one manufacturer's vehicles. Who is correct?

Technician A

Technician A says that AYES certifies technicians. Technician B says that ASE certifications can help get you a job. Who is correct?

Technician B

Technician A says that Henry Ford is credited with the invention of the automobile. Technician B says that Karl Benz is credited with the invention of the automobile. Who is correct?

Technician B

Technician A says that an SUV is typically a two-door convertible vehicle. Technician B says that many pickups come in two-door and four-door versions. Who is correct?

Technician B

Which of the following is true of a horizontally opposed configuration?

The pistons are in two banks on both sides of a common crankshaft.

If a foreign object is in the eye, irrigate from the nose side of the eye toward the outside to avoid flushing material into the other eye.

True

Once a technician receives an approved section 609 certification, he or she is legally able to handle automotive refrigerants and repair automotive A/C systems.

True

Some full-time 4WD sedans use a front engine and transaxle, with a drive shaft connected to drive the rear wheels.

True

Station wagons have a large rear door for easy access, and the rear seats can usually be folded to increase storage capacity even further.

True

Station wagons usually have fixed roofs.

True

The automatic transmission uses a torque converter (instead of a clutch), which acts as a hydraulic coupling to transfer the drive from the engine to the transmission.

True

To have a safe attitude when working in the automotive shop, think ahead about what you are doing, and put in place specific measures to protect yourself and those around you.

True

Torque is also used by technicians when tightening bolts and nuts.

True

When in place, the hard roof makes hardtop convertibles look more like conventional fixed-roof coupe vehicles.

True

The measure of torque is based on the equivalent twisting force exerted by an amount of _____ applied to a perpendicular lever of a given length.

Weight; Mass

Openings on a vehicle other than vehicle doors always include all of the following EXCEPT:

a battery access cover.

All of the following are considered NATEF standard, EXCEPT:

all students must gain ASE certification before leaving the program.

Chassis dynamometers are very useful for all of the following, EXCEPT:

diagnosing suspension concerns.

Jiffy Lube outlets are examples of:

franchises.

Modern vehicles' complex systems perform all of the following functions, EXCEPT:

helping retain resale value.

A modern vehicle can use a(n)_____ or smart key to start.

ignition key

All of the following are benefits of unibody design, EXCEPT:

increased vehicle life.

All of the following is true about torque EXCEPT:

it is typically measured in Newton-pounds (N-lb) in the imperial (US/American/non-metric) system.

In "Just in Time" manufacturing:

the manufacturer doesn't have to store large quantities of parts.

All costs associated with the recall are paid by the customer.

False

Which of the following should be inspected during a shop safety inspection?

Faulty or unsafe equipment or tools; clutter, spills, unsafe shop practices; items blocking emergency exits or walkways

The inspection of the _____ includes the constant velocity joints (CV joints) and dust boots.

Front-wheel drive axles.

_____ can be worn instead of a welding mask when using or assisting a person using an oxyacetylene welder.

Gas welding goggles

Which of the following works toward finding the most effective ways to help prevent worker fatalities and workplace injuries and illnesses?

OSHA

FWD is very common in modern vehicles; in this arrangement, _____ are driven by the engine.

Only the front wheels

Which of the following does the electrical technician typically use?

Oscilloscope; meter; circuit wiring diagrams

_____ means the vehicle is usually driven in two-wheel drive and switched to full-time when needed by engaging the transfer case.

Part-time 4WD

A steel hammer might mark or damage the part being struck, especially if that part is made of a softer metal, such as aluminum.

True

As a general rule of thumb, in-line engines are easier to work on than the other cylinder arrangements.

True

Before working on a vehicle, it is good practice to check whether a TSB has been issued for that vehicle and type of fault or repair.

True

Ear protection comes in two forms: One type covers the entire outer ear, and the other is fitted into the ear canal.

True

Lube technicians are responsible for keeping their workspace, tools, and equipment clean and organized.

True

The thread of a bolt acts as an inclined plane; as the bolt is turned, it is drawn into or out of the matching thread.

True

Traditionally, a coupe has two standard seats in front, and possibly two smaller seats behind.

True

Advances in vehicle manufacturing technology have decreased the need for:

large amounts of labor.

Chassis dynamometers are very useful for:

testing vehicle performance.

In many situations, nonverbal communication can be more important than:

the verbal message itself.

Specialized manufacturer tools are shared by everyone in the shop. Technician A says that it is critical that they are inspected for damage. Technician B says that they should be put in their proper storage space after each use. Who is correct?

Both A and B

Technician A says power steering pumps can be engine driven. Technician B says power steering pumps can be electrically driven. Who is correct?

Both A and B

Technician A says that computer databases provide information on procedures, parts, and service problems. Technician B says usernames and passwords may be required to log into the computer and the service information program. Who is correct?

Both A and B

The powertrain system is one of the major systems on a vehicle. Technician A states that this system helps to power the vehicle down the road. Technician B states that this system usually contains the engine and transmission. Who is correct?

Both A and B

Which of the following typically happens when cranking a gasoline engine that uses a computer control engine management system?

Engine sensors are monitored; timing is adjusted; injectors are adjusted

Your shop should have a(n) _____ that clearly identifies the evacuation routes.

Evacuation procedure

ASE is a mandatory certification you must receive to work in the automotive industry.

False

Labor guides are only available in print.

False

The best way to get rid of exhaust gases is in a soundproof room.

False

_____ is extra time needed to deal with situations that occur on a relatively common basis, such as vehicle-installed options that are not common to all vehicles, like wheel locks.

Additional time

Which of the following is likely to be true about a service manager?

Is responsible for the function of the service department; possess well-established skills in communication and motivation

_____ is generally acknowledged to have invented the modern automobile around 1885.

Karl Benz

As a person is speaking, you also need to provide _____, which indicates to the speaker that you are engaged in what he or she is saying.

Listening feedback

Regulations on how to dispose of waste fluids are set by which level of government?

Local; state; federal

Tech A says that both OSHA and the EPA can inspect facilities for violations. Tech B says that a shop safety rule does not have to be reviewed once put in place. Who is correct?

Tech A

Technician A says that lockout/tag-out is a safety procedure for a safe working environment. Technician B says that lockout is designed to secure a vehicle after all work on it has been completed. Who is correct?

Technician A

Technician A says that newer vehicles require less maintenance compared to older vehicles. Technician B says that major repairs are needed more frequently on newer engines. Who is correct?

Technician A

A _____ is a self-contained unit with the transmission, final drive gears, and differential located in one casing.

Transaxle

There are two different, but essentially compatible, 17-character VIN standards: the North American VIN system, and the ISO Standard 3779.

True

Technicians have a selection of their own tools, which include _____.

Various hand tools; electrical meters

The owner's manual contains all of the following details EXCEPT:

engine removal procedures.

By the _____, most manufacturers switched to vehicle designs that either partially or wholly integrated the bodywork into a single unit with the chassis so that the vehicle body became part of the vehicle structure rather than just an external skin.

1960s

A hatchback typically has:

3 doors.

Transmission specialists work only on light vehicle transmissions.

False

Which of the following defines torque?

A twisting force that is applied to a crankshaft by movement of the pistons; a twisting force applied to nuts and bolts by a technician's wrench

_____ is the term used when a vehicle body is mounted on a rigid frame or chassis.

Body-on-frame

Technician A says drivability technicians diagnose emissions problems on vehicles. Technician B says drivability technicians diagnose performance problems in vehicles. Who is correct?

Both A and B

Technician A says independent shops are not affiliated with vehicle manufacturers. Technician B says independent shops service a broad range of vehicles. Who is correct?

Both A and B

Technician A says specialty shops are usually independent shops that focus on one type of service. Technician B says franchises are similar to specialty shops, but they are connected to a larger parent organization. Who is correct?

Both A and B

Technician A says that a live axle is an axle that drives the vehicle. Technician B says that a dead axle supports the weight of the vehicle, but doesn't power it. Who is correct?

Both A and B

Technician A says that dealership technicians generally have access to manufacturers' training coursers. Technician B says that an independent shop works on a wide variety of vehicles that requires a broad skill level in technicians. Who is correct?

Both A and B

Technician A says that gasoline is energy in chemical form. Technician B says that chemical energy is converted to mechanical energy by the combustion process of an engine. Who is correct?

Both A and B

Some high-end sports car manufacturers are no longer fitting an engine _____ to their vehicles.

Compartment release

The wheels on dead axles are not considered _____ because they only support the vehicle's weight.

Drive wheels

The wheels and axles on a live axle are also called _____ because they propel the vehicle.

Drive wheels and drive axles

Which of the following systems is responsible for providing power to the vehicle's lights, accessories, and modules?

Electric system

Which of the following systems does an electrical technician typically service?

Electronically controlled fuel injection systems

The modern vehicle contains complex electrical, electronic, and mechanical systems designed to improve efficiency, reduce _____, and provide safety to vehicle passengers.

Emissions

Which of the following would likely be included in the drivetrain?

Engine; transmission/transaxle; differential

All rear seats in hatchback vehicle models fold down in a "split" configuration, which provides more flexibility because only one side needs to be folded down if the other seat is required for a passenger.

False

All transfer cases use an electronically controlled multi-plate clutch

False

Automotive sedans always have a fixed roof.

False

The four-door pickup always has a reduced cargo-carrying space to accommodate the extra seating in the passenger cab.

False

Technician A says that the gear ratios in the transmission give the vehicle an extended operating range. Technician B says that the final drive assembly has various gear ratios that can be selected with a gearshift lever. Who is correct?

Neither A nor B

Technician A says that the natural angle of a V6 is 90 degrees. Technician B says that the natural angle of a V10 is 60 degrees. Who is correct?

Neither A nor B

All of the following are considered drive train layouts, EXCEPT:

One-wheel drive.

Technician A says that gear ratios in the transmission give the vehicle an extended operating range. Technician B says that the final drive assembly has various gear ratios that can be selected with a gearshift lever. Who is correct?

Technician A

Technician A says that one advantage of a mid-engine design is better weight distribution. Technician B says that the rear-engine design is commonly used in four-wheel drive vehicles. Who is correct?

Technician A

Technician A says that the differential gear set allows for the difference in speed of each drive heel when cornering. Technician B says that the final drive assembly connects the engine to the transmission. Who is correct?

Technician A

Technician A says that the differential gear set allows for the difference in speed of each drive wheel when cornering. Technician B says that the final drive assembly connects the engine to the transmission. Who is correct?

Technician A

Technician A says horizontally opposed engines use a triangular rotor that turns inside an oval chamber. Technician B says that in a VR engine, the pistons are in one bank but form a shallow V within the bank. Who is correct?

Technician B

Technician A says that the definition of torque is how far the crankshaft twists in degrees. Technician B says that torque can relate to tightness of bolts. Who is correct?

Technician B

Technician A says that the maintenance intervals of a vehicle have changed very little since the creation of the automobile. Technician B says that manufacturers are predicting 25,000-mile (40,000 km) maintenance intervals. Who is correct?

Technician B

Technician A says that the purpose of the battery is to charge the vehicle. Technician B says that in-line engines are generally easier to work on than V engines. Who is correct?

Technician B

Technician A says the drivetrain on a vehicle includes the steering wheel. Technician B says the drivetrain on a vehicle includes the axles and wheels. Who is correct?

Technician B

Which of the following is likely a feature found in a typical transaxle?

Transmission; final drive gears; differential

The transmission or transaxle contains sets of gears that increase or decrease the torque, which allows the vehicle to:

high road speed in higher gears.

All of the statements below are true EXCEPT:

torque pushes the piston down.

Disposable dusk masks should not be used when working around asbestos dust for all of the following reasons EXCEPT:

Asbestos dust is harmless.

Modern _____ require large-scale investments, so manufacturers must be sure that a new vehicle model will succeed in the market before they will invest billions of dollars in production line retooling.

Assembly lines

Which of the following is considered a NATEF standard?

Instructors must be ASE certified in the area they teach; Instructors must attend 20 hours of technical update training each year; Reaccreditation is every five years

Henry Ford's concept of "_____" meant parts did not have to be custom built to match a particular car.

Interchangeability

Tech A says AYES is an accrediting body for secondary and post-secondary automotive training programs. Tech B says the NATEF is an independent, nonprofit organization that is a partnership between automotive manufacturers, their dealerships, and affiliated secondary automotive programs. Who is correct?

Neither A nor B

Typical serpentine belts and serpentine belt systems have which of the following?

Spring-loaded tensioner

Being hand-built, the early automobiles tended to:

be expensive to buy.

_____ and some manual transmission fluid are normally reddish in color, although some manufacturers may use a clear or amber color; it is very slippery and oily and has an oily smell.

Automatic transmission fluid

To use a parts program, you need to have a _____ understanding of how to start and use a computer.

Basic

The _____ label lists a diagram of the serpentine belt routing for the engine accessories.

Belt routing

Tech A says that the production of vehicles today requires a mix of robotic and human assembly. Tech B says that most of the parts on a vehicle are preassembled into unit assemblies before they reach the assembly line. Who is correct?

Both A and B

Technician A says drivability technicians diagnose and identify mechanical and electrical faults that affect the emissions of vehicles. Technicians B says drivability technicians diagnose and identify mechanical and electrical faults that affect the performance of vehicles. Who is correct?

Both A and B

A technician wants to be at the cutting edge of technology. Which type of repair facility would be the best fit for him or her?

Dealership

Which of the following can be considered a franchise?

Goodyear, AAMCO, Jiffy Lube

Some tools are _____ or awkward to use, so seek assistance if required and use correct manual handling techniques when using tools.

Heavy

Some tools are _____, so seek assistance if required, and use correct manual handling techniques when using tools.

Heavy

Technician A states that the transfer case controls the drive to the front and rear axles. Technician B states that transfer cases always allow the driver to select 2WD or 4WD. Who is correct?

Tech A

Technician A says that customer authorization is again required if the repairs are more than a certain dollar amount or percentage above the original estimate. Technician B says that additional charges can be dealt with after the repair is complete, as the customer will be satisfied because more repairs have been completed. Who is correct?

Technician A

Technician A says that the gear ratio in the transmission helps the vehicle gain speed. Technician B says that the gear ratio of the final drive can be selected with a gearshift lever. Who is correct?

Technician A

Technician A states that automobiles became more affordable later due to Henry Ford bringing in the concept of the assembly line. Technician B states that the automobiles became the predominant mode of transport due to introduction of smaller gasoline engines. Who is correct?

Technician A

Technician A says independent shops are not affiliated with vehicle manufacturers, but it easy for technicians who work in these shops to get manufacturer training on new technologies. Technician B says independent shops are not affiliated with vehicle manufacturers, making it harder for independent technicians to access training on new vehicle technology. Who is correct?

Technician B

Technician A says that anti-seize compound is a type of thread-locking compound. Technician B says that thread-locking compounds act like a very strong glue. Who is correct?

Technician B

Technician A says that dust masks should be used when painting. Technician B says that a respirator should be used when chemicals are present in the atmosphere. Who is correct?

Technician B

Technician A says that most vehicles today are built with a ladder frame. Technician B says that most vehicles today do not have a frame. Who is correct?

Technician B

Technician A says the vehicle owner's manual includes tune-up instructions and water pump removal instruction. Technician B says the vehicle owner's manual includes tire changing specifications and jacking and towing information. Who is correct?

Technician B