Automotive Practice 9 weeks 3rd

Technician A says if the PCV (Positive Crankcase Ventilator) valve is clogged, the engine could have a rough idle. Technician B says that the PCV valve rattles when it is working properly. Who is right?

A only

Technician A says the built- In hydrometer color is not a reliable indicator of battery state of charge. Technician B says the hand-held hydrometer tool is the primary tool used to measure battery state of charge. Who is right?

A only

Technician A says you should inspect all types of fan blades for stress fractures. Technician B says that if there are signs of silicon residue at the viscous mechanical clutch, the fan clutch must be replaces. Who is right?

A only

Technicians A says a solution of baking soda and water is used as a neutralizing agent on the surface of the battery. Technician B says the soda solution will not harm the battery electrolyte. Who is right?

A only

Technicien A says an aiming screen will work on any daylight design to aim the headlights. Technician B says mechanical aimers are used on HID( High Intensity Discharges) headlights. Who is right?

A only

Two technicians are explaining radiator cap service. Technician A says a radiator cap is tested using a cooling system pressure tester. Technician B says when the radiator cap does not hold enough pressure, you can replace the cap gasket. Who is right?

A only

This question has the word EXCEPT. For in this question, look for the choice that would NOT meet the described situation. Read the entire question carefully before choosing your answer. A defective taillight bulb could cause all of the following EXCEPT

ABS warning amp to flash on once and then go off

A tight timing belt makes what type of noise?

Whining sound

Which of the following is the MOST likely way to use a high impedance digital ohmmeter to test for resistance?

With the circuit power off

Two technicians re describing battery charging. Technician A says to remove the surface charge from a recently charged battery, apply a 300- ampere load across the adapters for 15 seconds. Technician B says to remove the surface charge from batteries, which have been in storage. Who is right?

A only

There is a blue fluid beneath vehicle. The fluid is most likely

windshield washer fluid

What is the last step before installing a replacement CV ( constant velocity) joint or boot?

Burp the air out of the boot

An orange colored liquid is food under the from of the engine. What is leaking?

Coolant

A vehicle comes in the shop with an engine noise. What should be done first?

Discuss the noise with the vehicle owner

Horn circuits are protected by which of the following devices?

Either Fuse or Fusible link

A vehicle with an electronically controlled aromatic transmission is being read tested for poor shifting. What should be done before doing a road test?

Check transmission/ transaxle fluid level.

When jump starting a vehicle using jumper cables with a dead battery, what is the correct procedure ?

Connect (+)positive to (+) positive and (-) negative to (-) negtive

A Cv (constant velocity) joint is being replaced on a front wheel drive vehicle. Which of the following is the proper grease to use with the CV joint?

Grease supplied with boot kit

What tool is used to measure engine coolant freeze production?

Hydrometer

A spark ignition has a flapping sound near the front. Which of the following could be the cause?

Loose timing belt

For this question, look for the choice that would LEAST LIKELY cause the described situation. Read the entire question carefully before choosing your answer. An alternator (not charging) has low output and is being full- fielded to determine the cause. Which of the following is the LEAST likely result or full- feeding the alternator?

Low battery voltage level

When replacing an air filter, the technician should

Make sure dirt does not fall into the opening

This question has the word EXCEPT. For this question, look for the choice that would NOT fit the described situation. Read the entire question carefully before choosing your answer. When flushing and refilling a cooling system, all of the following steps are necessary, EXCEPT:

Mixing tap water and distilled water

This question has the word EXCEPT. For this question, look for the choice that would NOT meet the described situation. Read the entire question carefully before choosing your answer. All of the following are methods of checking a serpentine drive belt tension, EXCPET

Twisting the belt

The use of what type of diesel fuel is critical to diesel exhaust fluid used in SCR (selective catalyst reduction) systems?

Ultra low Sulfur Diesel

This question has the word EXCEPT. For this question, look for the choice that would NOT fit the described situation. Read the entire question carefully before choosing your answer. A hydraulically controlled clutch is being bled. All of the following statements about bleeding a hydraulically clutch are true, EXCPET

Use a vacuum assist or other type of other type of power bleeder

The automotive repair process is a six step process. What is the last step in that process?

Verifying the concern

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?

Voltage trap

The open circuit voltage (OCV) test on a fully charged battery should show which voltage?

12.6 volts

Maintenance for fluid level, type, and condition are being done on an automatic transaxle. Technician A says with the engine off, pull out the dipstick, hold it over a shop rag and read it immediately. Technician B says if the ATF (Automatic Transmission Fluid) is pink it has been contaminated with engine coolant and water. Who is right?

B only

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

B only

Technician A says to replace the engine cooling thermostat once a year. Technician B says the lower radiator hose contains a sting to prevent it from collapsing and causing a restriction. Who is right?

B only

Two technicians are describing automatic transmission/ transaxle filter maintenance. Technician A says after the filter is replaced, you can simply install the specified amount of transmission fluid. Technician B says before adding any more fluid. Who is right?

B only

Two technicians are discussing an oil change. Technician A says synthetic oils provide a safe way to exceed the manufacturer's recommended oil change intervals. Technician B says to consult the on-line service information or owner's manual for the correct viscosity and amount of oil. Who is right?

B only

Two technicians are discussing rear wheel stud replacement. Technician B says on some applicants a special puller is used to remove the wheel studs. Who is right?

Both A and B

If the battery terminals are corroded, which of the following tools is used to remove the battery cable?

Battery connector puller

Technician A says most OEMs (original equipment manfaucters) recommended an oil change interval of 7,500 to 12,000, miles or every 6 months. Technician B says oil change intervals are controlled electronically through an oil life monitor on the dash. Who is right?

Both A and B

Technician A says the auxiliary automatic transmission oil cooler is a small radiator separate from the engine radiator. Technician B says that if the automatic transmission oil cooler lines are found to be leaking, they are first tightened to specifications. Who is right?

Both A and B

Technician A says the emission maintenance reminder automatically turns on the dash light to indicate the need for an emission control system service. Technician B says faulty evaporative emissions control system purge solenoid ca cause the fuel tank to collapse. Who is right?

Both A and B

The process of starting a vehicle with a dead battery using a jump box Is being discussed. Technician A says the last connection made should always be on the engine block or bracket of the dead battery vehicle. Technician B says many vehicles use a special connection far away from the battery. Who is right?

Both A and B

Two technicians are discussing engine coolant. Technician A says a weak solution of antifreeze may cause corrosion build- up in the cooling system Technician B says some original equipment manfaucters (OEM) recommend that the coolant be changed at specified intervals. Who is right?

Both A and B

Why should you never touch the tip of a halogen bulb?

Oil from a finger can cause shortened bulb life.

This question has the word EXCEPT. For this question, look for the choice that would NOT fit the described situation. Read the entire question carefully before choosing your answer. The filter is being serviced on a automatic transmission without a drain plug. All of the following are done by the technician, EXCPET

Remove all pan bolts and drop pan

What is the most important and first step to be taken when servicing a SRS (supplement Restraint System)

Remove the battery negative cable

This question has the word EXCEPT. For this question, look for the choice that would NOT fit the described situation. Read the entire question carefully before cg=choosing your answer. All manual transmissions/ transaxle require one of the following lubricants, EXCPET

SAE 20W40 engine oil Use 5W30

Which diagnosis tool plugs into the DLC (Data Link Connector) to allow the technician to read DTCs (Diagnosis Trouble Codes)

Scan tool and Laptop computer

The starter motor was recently replaced and now makes a whining noise when starting. Which of the following is the MOST likely cause?

Shims left out

When using a digital ammeter, the red lead should be connected to what area of the connector?

Side closest to positive side of battery