Ch 14-17

Teach A says that when changing the spin-on oil filter, you need to clearly verify that the O-ring was removed with the filter. Tech B says that the O-ring of the new filter should be dry when the filter was screwed on. Who is correct? a. Tech A b. Tech B c. both d. neither

a. Tech A

Tech A says that is takes about 1 quart of oil to raise the oil level from "add" to "full". Tech B says that it takes about 1 pint to raise it that much. Who is correct? a. Tech A b. Tech B c. both d. neither

a. Tech A

Tech A says that the higher the viscosity number, the thicker the oil. Tech B says that most modern vehicles use single weight oil. Who is correct? a. Tech A b. Tech B c. both d. neither

a. Tech A

Tech A says that the oil-lode monitor calculates the expected life of the oil and displays it to the driver. Tech B says that an oil pressure regulator boosts the oil pressure at high engine rpm. Who is correct? a. Tech A b. Tech B c. both d. neither

a. Tech A

Draining and refilling the coolant is necessary in all of the following cases except when: a. a customer requests it b. the pH is out of specification c. the coolant is contaminated d. the coolant level is low

a. a customer requests it

Different types of oil pressure sensors/switches can do all of the following except: a. add oil to the oil pan b. activate a warning light c. register on a gauge d. turn on a warning message

a. add oil to the oil pan

All of the following are advantages of synthetic oil over convent oil except: a. cost effectiveness b. better low temperature viscosity c. fewer wax impurities d. operation at higher temperatures

a. cost effectiveness

When pressurizing coolant: a. its boiling point increases b. the cooling system becomes heavier c. the radiator becomes bigger d. engine efficiency decreases

a. its boiling point increases

Which of these is used t force coolant throughout the cooling system in order to transfer heat energy? a. water pump b. thermostat c. radiator d. cooling fan

a. water pump

Tech A says that electric cooling fans are used to cause a large airflow over the radiator when the engine is cold. Tech B says that electric cooling fans are used to cause a large airflow over the radiator at low vehicle speeds. Who is correct? a. Tech A b. Tech B c. both d. neither

b. Tech B

Tech A says that most coolants are designed to last the life of a vehicle. Tech B says that a hydrometer can be used to test the freeze point of coolant. Who is correct? a. Tech A b. Tech B c. both d. neither

b. Tech B

Tech A says that oil pressure is increases when bearing clearances increase. Tech B says that the faster the oil pump turns the more oil is pumped.Who is correct? a. Tech A b. Tech B c. both d. neither

b. Tech B

Tech A says that the thermostat is open until the engine warms up, and then it closes. Tech B says yay a faulty radiator cap an be the cause of boiling coolant. Who is correct? a. Tech A b. Tech B c. both d. neither

b. Tech B

Two techs are discussing 5W20 oil. Tech A says that "W" stands for "weight". Tech B says that "W" stands for "Winter". Who is correct? a. Tech A b. Tech B c. both d. neither

b. Tech B

The surface area that dissipates heat is increased by the use of: a. soft plugs b. fins c. hood insulation d. drain plugs

b. fins

During replacement, when compared with a spin-on filter, in a cartridge filter: a. all parts get replaced b. it is easier to properly dispose of oil c. a greater amount of waste is generated d. reuse is minimal

b. it is easier to properly dispose of oil

Which of these is the best guide to knowing when when to change the oil? a. distick b. oil-life monitor c. oil level sensor d. pressure gauge

b. oil-life monitor

The engine's operating temperature can be verified using all of the following except a : a. dash gauge b. refractometer c. scan tool d. temperature gun

b. refractometer

Tech A says that after changing the engine oil and filter, you should apply a stain sticker to remind the owner when the next oil change is due. Tech B says that you should reset the maintenance reminder system to remind the owner when the next oil change is due. Who is correct? a. Tech A b. Tech B c. both d. neither

c. both

Tech A says that most oil pumps are of the positive displacement style. Tech B says that oil pumps are designed to deliver more oil than is needed for one engine. Who is correct? a. Tech A b. Tech B c. both d. neither

c. both

Tech A says that one function of oil is to clean. Tech B says that. one function of oil is to cushion. Who is correct? a. Tech A b. Tech B c. both d. neither

c. both

Tech A says that spin-on oil filters use a square-cut rubber O-ring to seal the base of the filter to the engine block. Tech B says that some oil filters use a replaceable paper filter cartridge. Who is correct? a. Tech A b. Tech B c. both d. neither

c. both

Tech A says that the thermostat may have an air bleed that must be positioned properly when the thermostat is replaced. Tech B says that the thermostat housing must be flushed against the mating surface or the ear may break off when tightening the bolts. Who is correct? a. Tech A b. Tech B c. both d. neither

c. both

Tech A says that when you find coolant hoses collapsed after the engine cools down, the radiator pressure cap has likely failed. Tech B says that the thermostat may have a bleed valve that should be accurately positioned when the thermostat is replaced. Who is correct? a. Tech A b. Tech B c. both d. neither

c. both

A coolant serves all of the following purposed except: a. preventing an engine from overheating while in use b. keeping the engine from freezing while not in use in cold climates c. reducing friction in the moving parts of the engine d. presenting corrosion of the parts in the cooling system

c. reducing friction in the moving parts of the engine

Which of these provides stringent classification formulated for engine oils used in European vehicles? a. SAE b. API c. ILSAC d. ACEA

d. ACEA

If the oil on the dipstick looks milky gray, it is possible that there is water (or coolant) being mixed into the oil. This could have been caused by any go the following except: a. a bad head gasket b. a cracked head c. a leaky oil cooler d. a leaky fuel injector

d. a leaky fuel injector

Choose the correct statement: a. belts should be inspected when the engine is running b. tears or split belts are serviceable c. a bottomed-out belt will slip and squeal d. always replace belts with cranks

d. always replace belts with cranks

When testing the cooling system for leaks using. pressure tester: a. ensure there is only 50% coolant or water b. the radiator cap need not be testes c. do not adjust the pressure when the engine heats up d. look for both internal and external leaks

d. look for both internal and external leaks

Tech A says that API's "S" rating means it should only be used in supercharged engines. Tech B says that C rated oil is certified for cars, and not trucks. Who is correct? a. Tech A b. Tech B c. both d. neither

d. neither

Tech A says that the cooling system is designed to keep the engine as cool as possible. Tech B says that the hea travels from cold objects to hot objects. Who is correct? a. Tech A b. Tech B c. both d. neither

d. neither

Tech A says that when 100% antifreeze is used in the cooling system, the protection level is approx. -70. Tech B says that the 100% antifreeze will cool the engine better than 100% water. Who is correct? a. Tech A b. Tech B c. both d. neither

d. neither

Tech A says that when draining the engine oil, the engine should be fully cold for best results. Tech B says that engine should be running when checking engine oil level. Who is correct? a. Tech A b. Tech B c. both d. neither

d. neither

The surge tank: a. regulates coolant temps b. prevents coolant leak c. reduces engine noise d. removes gas from the system

d. reeves gas from the system

Choose the correct statement with respect to oil change: a. normal use and severe use have the same oil change intervals b. when draining oil, the oil should be cold c. the drain plug should be tightened with maximum force to prevent an oil leak d. the engine should be fully warmed up when draining oil

d. the engine should be fully warmed up when draining oil