Which solder should be used when repairing an automotive electrical connection?

Technician A says a voltage limiter is used in an instrument panel to keep the voltage at 5 volts. Technician B says if the limiter is faulty, it may result in high gauge readings. Who is correct?

This multi meter reading shows what?

Two technicians are discussing the waveform in the image above. Technician A says the TP sensor in the image is defective. Technician B says the vehicle may hesitate during acceleration. Who is correct?

A vehicle's factory alarm system activates on its own. Technician A says this could be a faulty courtesy light switch. Technician B says an intermittent problem with a trunk or hood switch can cause this activation. Who is correct?

This symbol is for what?

A vehicle's battery continues to discharge while sitting overnight. Technician A says to perform a parasitic battery drain test. Technician B says this could be a slow drain caused by a faulty alternator. Who is correct?

An alternator output test is being performed on a vehicle's charging system. Technician A says engine idle must be increased during this test. Technician B says the vehicle's accessories must be turned on during this test. Who is correct?

A technician is performing a starter current draw test on a four-cylinder engine. The engine cranks slowly and has a current draw of 340 amps. Which of the following is correct?

Technician A says today’s automotive tires use a system of two conjoined inner tubes to hold air pressure and prevent leaks. Technician B says one of the functions of an automotive tire is to provide adequate traction with the road surface. Who is right?

Technician A says an automotive tire’s beads are used to stiffen the tire treads. Technician B says an automotive tire’s beads are used to hold the tire’s sidewalls against the wheel rim. Who is right?

Technician A says an automotive tire’s belts stretch horizontally across the beads to form the carcass, or body, of the tire. Technician B says an automotive tire’s liner provides a leakproof membrane for tubeless tires. Who is right?

Technician A says a radial ply tire’s belts are sometimes made of steel. Technician B says a radial ply tire’s belts are sometimes made of fiberglass. Who is right?

Technician A says tire markings on the sidewall of a tire give information about a tire’s load-carrying ability. Technician B says tire markings on the sidewall of a tire provide the tire’s speed rating. Who is right?

A tire size measurement given in the P-metric size designation is listed as: P 235/50 R18. Technician A says the number 50 is the aspect ratio, which measures the tire’s weight at 50% of the tire’s cross- sectional width. Technician B says the number 18 signifies the tire’s year of manufacture in the 21st century, which is 2018. Who is right?

Tire grades and tire markings are being discussed. Technician A says tire tread wear, tire traction, and tire temperature resistance ratings are all part of the Uniform Tire Quality Grading System. Technician B says a tire’s load index is listed as a letter from B to Y on the tire sidewall that correlates to a weight-carrying capacity range of between 1,000–1,500 lb (456–680 kg). Who is right?

Technician A says vehicle manufacturers instruct owners to drive on a compact spare tire in the exact manner as they would drive on a traditional full- size automotive tire. Technician B says run-flat tires are constructed with wear bars that serve as a supplementary protective layer over the tire tread. Who is right?

Tire pressure monitoring systems (TPMS) are being discussed. Technician A says a TPMS is installed only in commercially used vans and trucks in the United States. Technician B says some TPMS give the air pressure reading for each tire on the dash display. Who is right?

Technician A says on passenger vehicles, the center wheel section of a drop-center wheel has a smaller diameter than the rim to ease tire installation and removal. Technician B says the majority of automotive wheels are made of aluminum. Who is right?

Technician A says that depending on the vehicle manufacturer, lug nuts are manufactured with both right-hand threads (turn clockwise to tighten) or left-hand threads (turn counterclockwise to tighten). Technician B says lug bolts are press-fit into the hub or axle flange and can only be removed with manufacturer-specific tools. Who is right?

Wheel weights are being discussed. Technician A says wheel weights are thin metal strips that are pressed into the grooves of a rubber tire tread to offset tread height manufacturing inconsistencies. Technician B says wheel manufacturers recommend using a hammer to apply clip-on lead weights to an aluminum wheel. Who is right?

Technician A says wheel bearings in several vehicle models are the tapered roller bearing type. Technician B says wheel bearings in certain vehicle models are the ball bearing type. Who is right?

The basic parts of an automotive wheel bearing are being discussed. Technician A says a wheel bearing’s outer race is sometimes pressed into the automobile’s steering knuckle. Technician B says the bearing’s outer race is sometimes pressed into the hub. Who is right?

Technician A says a steering knuckle is a basic component in a driving hub and wheel bearing assembly. Technician B says the inner stub shaft is a basic component in a driving hub and wheel bearing assembly. Who is right?

All the following are typical automotive suspension system problems EXCEPT:

A vehicle’s body bounces five times after a shock absorber bounce test is performed. Technician A says this indicates that the shock absorbers are in good condition. Technician B says the results of this test indicate bad shock absorbers. Who is right?

A small pickup truck is brought into the shop with a leaking shock absorber. Technician A says the leaking shock will produce a high-pitch screeching noise when the pickup truck is driven. Technician B says that the leaking shock must be replaced. Who is right?

One of a vehicle’s air shocks is leaking. Technician A says all the air shocks or air springs on a vehicle must be replaced with new units if one shock or spring is leaking. Technician B says the shock’s air line can be repaired if it is leaking. Who is right?

. A vehicle’s curb weight is being measured. Technician A checks curb weight with the vehicle’s gas tank empty. Technician B says adhering to the vehicle’s manufacturer-specified curb weight is unnecessary when trying to take an accurate measurement of the vehicle’s curb height. Who is right?

A full-size pickup truck’s coil springs are being replaced. During this procedure, Technician A unbolts the ball joint on the control arm before compressing the coil spring. Technician B says that a new larger coil spring that fits outside of the spring seats can be safely installed to improve vehicle ride quality. Who is right?

Technician A says leaf spring service often involves spring assembly or bushing replacement. Technician B says leaf springs are used in many late-model pickup trucks because they cannot break. Who is right?

A vehicle is brought into the shop with a possible ball joint problem. Technician A says if the ball joint is dry, it has collapsed inward and will feel hard to the touch because of a lack of grease. Technician B jacks up the vehicle, moves the control arm and joint with a long pry bar, and checks the movement and play against manufacturer specifications to check if the ball joint is worn. Who is right?

The fastening of most modern ball joints with the vehicle’s suspension components is accomplished with:

A vehicle’s front tires are worn. Technician A tells the vehicle owner that worn control arm bushings may have caused this problem. Technician B tells the owner that stiction between suspension rubber bushings and metal parts must be maximized for the best system performance. Who is right?

Strut assembly service is being discussed. Technician A says the strut shock absorber can be replaced when faulty in many strut assemblies. Technician B says automakers recommend removing the upper spring seat during reassembly of the strut. Who is right?

A vehicle’s ball joints have been replaced. After performing this procedure, Technician A says the vehicle should be test-driven immediately before further adjustments are made. Technician B says the vehicle’s wheel alignment should be checked and accurately adjusted before the vehicle is test- driven and then released to the owner. Who is right?

A scan tool reading data and trouble codes from an electronic suspension system can find problems in all of the following parts EXCEPT:

. A vehicle with an electronic air suspension is brought into the shop with an air compressor problem. Technician A checks the compressor’s electrical connections and its source of voltage. Technician B tests the compressor’s output pressure with a pressure gauge. Who is right?

. An electronically controlled magnetic shock has gone bad and is displaying a trouble code. Technician A says to pinpoint test the unit and wiring before replacement. Technician B says any suspension trouble code will have an accompanying steering system trouble code in an electronically controlled system. Who is right?

On a car with disc/drum brakes, the front brakes grab quickly when light pedal pressure is applied. This problem could be cause by a bad:

The driver of a vehicle with power disc/drum brakes says the brake pedal moves slowly to the floor while maintaining pedal pressure at a stoplight. What could cause this problem?

Which of the following would MOST LIKELY happen if the measurements taken from the check shown above varied from the manufacturer's specifications?

What is the purpose of the master cylinder residual check valve(s) on vehicles equipped with drum brakes?

A technician has just overhauled the front brakes on a vehicle with front disc and rear drum brakes. However, when he attaches a pressure bleeder (pressurized to about 25 psi) to the master cylinder, he cannot get any fluid to come out of the disc brake caliper bleeder screws. Which of the following is MOST LIKELY the cause?

On a vehicle with single piston floating caliper front disc brakes, the brake pads on the left side on the vehicle are almost completely worn while the right side is almost new. Technician A says that too much rotor runout could be the cause. Technician B says that a binding caliper piston could be the cause. Who is right?

What is the purpose of the bar that is being removed from the brake assembly shown below?

A hydraulic brake line is leaking. Which of the following is the correct repair procedure?

The set-up shown above is used to check:

Which of the following problems would be caused by using a residual check valve in a disc brake master cylinder?

All of the following are functions of an automotive suspension system EXCEPT:

Technician A says an automotive suspension system works with the steering system to help keep the wheels in correct alignment. Technician B says an automotive suspension system works independently of the steering system and has no effect on wheel alignment. Who is right?

All of the following are basic components of an automotive suspension system EXCEPT:

Technician A says an independent suspension system has both the right and left wheels attached to the same solid axle. Technician B says a nonindependent suspension system has both the right and left wheels attached to the same solid axle. Who is right?

Which of the following statements regarding vehicle lateral acceleration is false?

Technician A says a leaf spring can be constructed of one or more flat strips of spring steel, fiberglass, or carbon fiber. Technician B says a torsion bar fastens to the vehicle’s body or frame and to the suspension system control arm. Who is right?

Technician A says a suspension system’s control arm fastens the steering knuckle to the shock absorber. Technician B says the control arm fastens the steering knuckle to the vehicle body or frame. Who is right?

Technician A says a ball joint in an automotive suspension system allows control arm and steering knuckle movement. Technician B says a nut is used on the end of a ball joint stud to increase the space between the control arm and steering knuckle for better steering response. Who is right?

Technician A says due to its characteristics, hydraulic oil is the only substance that can safely be used in automotive shock absorbers. Technician B says increasing the distance of shock absorber compression and extension improves suspension performance. Who is right?

Technician A says an automotive strut assembly normally consists of a shock absorber, a coil spring, and an upper damper unit. Technician B says strut assemblies are installed only on rear axles because they are incompatible with automotive steering systems. Who is right?

Technician A says a sway bar in an automotive suspension system decreases body squat when a vehicle is accelerating or braking. Technician B says a jounce bumper prevents side-to-side axle movement in a rear suspension system. Who is right?

Technician A says in a long-short arm suspension, the upper control arms are longer than the lower control arms. Technician B says a multi-link suspension uses one lateral link per wheel to reduce the complexity of the suspension system. Who is right?

Rear suspension systems are being discussed. Technician A says independent rear suspension systems are rarely installed on today’s vehicles. Technician B says some manufacturers install a solid, dead axle as the rear axle on front-wheel- drive vehicles. Who is right?

Suspension leveling systems are being discussed. Technician A says in an electronic height leveling system, the rear suspension is lowered further when carrying a heavy load to improve vehicle aerodynamics. Technician B says height sensors provide data to the suspension control module that limits the vehicle’s speed when heavily loaded. Who is right?

Electronic and active suspension systems are being discussed. Technician A says the vehicle’s steering angle sensor, brake sensor, and acceleration sensor are components in the electronic suspension system. Technician B says a fully active suspension system is referred to as an intelligent suspension system. Who is right?

Two technicians are discussing drum brake shoes. Technician A says that forward and​ rear-facing shoes are the same and can be installed in either position on any drum brake system. Technician B says that the darker color linings should always be placed toward the front of the vehicle. Which technician is​ correct?

Technician A says that the anchor pin​ (shoe anchor) is used to hold one end of the primary and secondary shoe return springs. Technician B says that the shoe anchor prevents the brake shoes from rotating with the drum when the brakes are applied. Which technician is​ correct?

Which lining does most of the braking on a​ dual-servo brake?

Which lining does most of the braking on a​ leading/trailing brake?

The brakes on a​ dual-servo drum system are designated as​ ________.

​________ action uses drum rotation to force the brake shoe outward and wedge it tightly against the brake drum.

When removing the Brake line from a Wheel Cylinder, what tool should be used?

As a general rule, how often should brakes be checked?

Technician A says to make the finish cut at the slowest speed when machining brake drums. Technician B says that the drum should not exceed its discard diameter. Who is correct?

Duo-Servo brakes adjust:

Leading Trailing brakes are adjusted:

On a Duo-Servo drum brake, when compared to Primary shoe linings, the Secondary shoe linings are:

Technician A says that all modern brake linings are bonded to their shoes. Technician B says that some brake linings are riveted to their shoes. Who is correct?

After assembling a drum​ brake, it is discovered that the brake drum will not fit over the new brake shoes. Technician A says that the parking brake cable may not have been fully released. Technician B says to check to see if both shoes are contacting the anchor pin. Which technician is​ correct?

Technician A says that hard spots in a brake drum should be removed using a​ carbide-tip machining tool. Technician B says the drum should be replaced if hard spots are discovered. Which technician is​ correct?

New rear brake shoes were replaced on a​ rear-wheel-drive vehicle equipped with front disc brakes and rear drum brakes. During the test drive smoke was observed coming from both rear wheels. Technician A says that this is normal because the new linings always smoke when first heated due to the resins in the lining. Technician B says that the parking brake cable may not have been fully released causing the brakes to drag. Which technician is​ correct?

Which is the most likely cause of chatter marks on the friction surface of a brake drum during​ machining?

New wheel cylinders are being installed. Which operation is not​ required?

On a car with disc/drum brakes, the front brakes grab quickly when light pedal pressure is applied. This problem could be cause by a bad:

The driver of a vehicle with power disc/drum brakes says the brake pedal moves slowly to the floor while maintaining pedal pressure at a stoplight. What could cause this problem?

Which of the following would MOST LIKELY happen if the measurements taken from the check shown above varied from the manufacturer's specifications?

What is the purpose of the master cylinder residual check valve(s) on vehicles equipped with drum brakes?

A technician has just overhauled the front brakes on a vehicle with front disc and rear drum brakes. However, when he attaches a pressure bleeder (pressurized to about 25 psi) to the master cylinder, he cannot get any fluid to come out of the disc brake caliper bleeder screws. Which of the following is MOST LIKELY the cause?

On a vehicle with single piston floating caliper front disc brakes, the brake pads on the left side on the vehicle are almost completely worn while the right side is almost new. Technician A says that too much rotor runout could be the cause. Technician B says that a binding caliper piston could be the cause. Who is right?

What is the purpose of the bar that is being removed from the brake assembly shown below?

A hydraulic brake line is leaking. Which of the following is the correct repair procedure?

The set-up shown above is used to check:

Which of the following problems would be caused by using a residual check valve in a disc brake master cylinder?

Which of the following brake symptoms can be caused by wheel bearing problems?

Which component in the Hydro-Boost system provides power assist if there is a loss of hydraulic pressure to the system?

A customer complains that the parking brake will not keep his car stationary. The car has four-wheel disc brakes. Technician A says the caliper levers could be out of adjustment. Technician B says the brake shoes could need adjustment. Who is right?

When replacing an integral hub/bearing assembly on a front wheel drive vehicle, all of the following must be EXCEPT:

A wheel cylinder has been disassembled and corrosion and light scoring have been found in the bore. Technician A says the bore can be refinished using a small hone lubricated with cutting oil. Technician B says oversize pistons and cup seals can be installed if the hone removes too much material. Who is right?

Two technicians are discussing traction control systems. Technician A says that some traction control strategies do not use the brakes to control wheel spin. Technician B says that a fault in the ABS does not affect traction control. Who is right?

When rough machining a brake drum, the depth of cut and spindle feed rate should be:

In the test shown above, vacuum should:

Technician A says the number on the brake drum shown above indicates the maximum diameter, beyond which the drum should not be used. Technician B says the number indicates the maximum diameter the drum can be machined to. Who is right?

A vehicle's brake warning system schematic is shown above. All of the following could cause the brake warning light to stay illuminated EXCEPT:

Technician A says a fully charged lead acid automotive battery has a specific gravity of 1.265 at 80° F. Technician B says the battery's specific gravity is affected by temperature. Who is correct?

A vehicle's air conditioner blower motor will only work if the selector is in the high position. Technician A says to check the blower motor resistor. Technician B says this is most likely a loose ground connection. Who is correct?

A full-fielded 70 amp alternator only produces 45 amps. The MOST likely cause of this is:

The headlights get brighter as a vehicle is accelerated. Technician A says this is caused by a high capacity battery. Technician B says this is caused by high charging system voltage. Who is correct?

A technician replaces a blown fuse in a dome light circuit and the element in the fuse melts immediately. Technician A says if a dome light keeps blowing fuses to check for a short to ground. Technician B says resistance in this circuit has increased current flow. Who is correct?

All the lights in a brake light circuit illuminate except one. The MOST likely cause is:

If a technician reversed the leads of a digital voltmeter on a 12 volt circuit the readout would show:

A vehicle's battery is being tested for capacity. Technician A says during a battery capacity test the voltage should not drop below 9.6 volts at 70° F. Technician B says a battery's voltage reading should increase as temperature decreases. Who is correct?

What is cold cranking amps?

What is a thermistor?

how much voltage should be in a fully charged battery?

Which solder should be used when repairing an automotive electrical connection?

This multi meter reading shows what?

This symbol is for what?

A vehicle's battery continues to discharge while sitting overnight. Technician A says to perform a parasitic battery drain test. Technician B says this could be a slow drain caused by a faulty alternator. Who is correct?

An alternator output test is being performed on a vehicle's charging system. Technician A says engine idle must be increased during this test. Technician B says the vehicle's accessories must be turned on during this test. Who is correct?

A technician is performing a starter current draw test on a four-cylinder engine. The engine cranks slowly and has a current draw of 340 amps. Which of the following is correct?

Is this an example of a series circuit?

What type of circuit is this?

An electric current is the flow of ..............in a circuit?

This symbol represents a ..........

This symbol represents a ............

This symbol represents a ..........

This symbol represents a .........

PWM Stands for?

This is an example of a digital signal.

When electrical resistance increases, amperage:

When mechanical resistance increases, amperage:

When the current to a solenoid or relay is disconnected the magnetic field collapses and causes:

Amperage is:

A battery load test is performed by

in electrical circuits, resistance is measured in

Which of the following converts ac to dc?

Which of the following is the most common wire identification on a wiring diagram?

Which of the following cable colors is used to designate high voltage in a hybrid vehicle?

Which of the following can be checked in the starter circuit with a voltage drop test?

A technician would use an ohmmeter to test

Two technicians are discussing an analog transmission range sensor on a late model vehicle. Technician A says that since these sensors use resistance to indicate gear selection, they can be tested with an ohmmeter. Technician B says to start the car and make sure the circuit is powered before using the meter. Who is correct?

When using a DMM (Digital Multimeter) voltmeter function to check for a voltage drop, meter leads should be connected in which of the following ways?

Which of the following is correct regarding a series circuit?

When a Digital Multimeter (DMM) is used to measure DC voltage and is connected in parallel to the load device, which of the following defines the reading?

Technician A says a loose serpentine alternator drive belt could cause overcharging. Technician B says undersized wiring between the alternator and the battery could cause undercharging. Who is right?

The main task of battery in automobile is to

A vehicle's air conditioner blower motor will only work if the selector is in the high position. Technician A says to check the blower motor resistor. Technician B says this is most likely a loose ground connection. Who is correct?

A technician replaces a blown fuse in a dome light circuit and the element in the fuse melts immediately. Technician A says if a dome light keeps blowing fuses to check for a short to ground. Technician B says resistance in this circuit has increased current flow. Who is correct?