Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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An
engine that burns air and fuel inside the engine itself is called: a. | internal
combustion. | c. | intake
combustion. | b. | external combustion. | d. | power stroke. | | | | |
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2.
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This
system of the vehicle gives it ride and stability. a. | steering | c. | brakes | b. | suspension | d. | powertrain | | | | |
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3.
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In an
internal combustion engine, the driving force is produced by a. | heat generated
by burning an air/fuel mixture inside a cylinder within the engine, above the
piston. | b. | hot steam pressure against the top, or head, of the
piston. | c. | heat generated by burning fuel outside the
engine. | d. | electric power supplied by the battery to the
engine. | | |
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4.
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The
two types of brakes used on the automobile are a. | drum and parking brakes. | c. | disc and caliper brakes. | b. | disc and drum
brakes. | d. | disc and service
brakes. | | | | |
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5.
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Which
of the following systems provides your car with safety, stability, and ride? a. | Suspension
system | c. | Steering
system | b. | Drivetrain | d. | Electrical system | | | | |
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6.
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All
of the following are true for tires EXCEPT a. | Tires are made from a single layer of
rubber. | b. | Your car's safety and comfort also depend on the traction and
flexibility of the tires. | c. | Tires are held in place on metal wheel rims through air
pressure. | d. | The steering and traction control of your vehicle depends on
tires. | | |
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7.
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Which of the
following is shown in the picture? a. | Cooling system | c. | Fuel system | b. | Electrical
system | d. | Lubrication
system | | | | |
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8.
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Basic
safety precautions include all of the following EXCEPT a. | wear eye
protection. | b. | use a hydraulic jack to support the car while working
underneath. | c. | perform work in accordance with the manufacturer’s
recommendations. | d. | keep a fully charged Class B fire extinguisher handy when
working on the fuel system. | | |
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9.
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Which
of the following is part of basic maintenance? a. | Checking and refilling the engine oil in your
crankcase | b. | Engine overhaul. | c. | Diagnostics,
advanced electrical, and fuel injection system work | d. | Tune-up and
basic electrical work | | |
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10.
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Which
of these is a sensible approach to buying tools? a. | Buy every tool described in the text. | b. | Buy a complete
set of tools. | c. | Determine you level of interest, then decide which tools you
need. | d. | Buy tools only if they are on sale. | | |
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11.
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Which
of the following is used to protect your eyes while working on an automobile. a. | Sun
glasses | c. | Welding
goggles | b. | Safety glasses | d. | Prescription glasses | | | | |
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12.
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All
of the following are precautions that should be observed when working on a running engine
EXCEPT a. | do not wear
loose clothing. | c. | stay clear of
moving parts. | b. | do not touch hot parts of the
engine. | d. | disconnect the
ground cable. | | | | |
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13.
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What
precaution should you follow if you are performing electrical work on a vehicle? a. | Have a fire
extinguisher that will extinguish Classes A, B, and C fires. | b. | Position the car
on a flat and level surface before you begin work. | c. | Work in
well-lighted areas and use a safety droplight with a cage around the bulb. | d. | Always
disconnect the ground cable. | | |
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14.
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All
of the following are common tools one might need for maintenance of the car EXCEPT a. | socket and
ratchet set. | c. | combination
wrenches. | b. | tire balancer. | d. | pliers and a hammer. | | | | |
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15.
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What tools are
shown in the picture? a. | Nutdrivers | c. | Punches | b. | Screwdrivers | d. | Scrapers | | | | |
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16.
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Which
stroke begins when the air fuel mixture is ignited? a. | Intake | c. | Power | b. | Compression | d. | Exhaust | | | | |
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17.
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Which
stroke is occurring when the engine draws in fuel and air? a. | Intake | c. | Power | b. | Compression | d. | Exhaust | | | | |
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18.
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Which
stroke is occurring when the burned gases are discharged? a. | Intake | c. | Power | b. | Compression | d. | Exhaust | | | | |
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19.
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Which
stroke squeezes the fuel and air mixture into a small area? a. | Intake | c. | Power | b. | Compression | d. | Exhaust | | | | |
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20.
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All
of the following are ways that the engine turns the camshaft EXCEPT a. | Cog type
belt. | c. | Gears. | b. | Driveshaft. | d. | Metal timing chain. | | | | |
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21.
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What
is the ratio between the crankshaft and camshaft?
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22.
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All
of the following statements about engines are correct EXCEPT a. | Heat comes from
the burning of fuel and from the friction caused by the rubbing of parts against each
other. | b. | All engines use overhead camshafts. | c. | The most
important fluids are engine oil and engine coolant. | d. | The camshaft
must revolve at exactly half the speed of the crankshaft. | | |
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23.
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A
bearing is designed to a. | let other parts move. | c. | protect other parts from wear. | b. | hold parts in
their proper position. | d. | all of the
above. | | | | |
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24.
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Which
of the following are types of lifters found in engines? a. | solid and pump
lifter. | c. | hydraulic and
pneumatic lifter. | b. | solid and hydraulic lifter. | d. | rotary and pushup lifter. | | | | |
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25.
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All
of the following are steps to observe when checking the engine oil level EXCEPT a. | Shut it off and
wait at least five minutes for the oil to drain into the oil pan. | b. | Pull out the
dipstick, wipe it off, and reinsert it into the dipstick tube. | c. | Fill the
crankcase above the FULL line of the dipstick. | d. | The car should
be on level ground so that you get a true reading. | | |
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26.
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The
purpose of piston rings is to a. | form a tight seal between the piston and the cylinder walls and
help maintain compression | b. | wipes excess oil from the cylinder
wall. | c. | allow for expansion and contraction of pistons and cylinders
caused when the engine heats and cools. | d. | all of the above. | | |
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27.
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A
cold engine wears a. | less because
cold parts do not fit well and therefore are subject to more wear. | b. | less because
piston rings don’t fit as tightly. | c. | more because oil pressure decreases. | d. | more because
cold parts do not fit well and therefore are subject to more wear. | | |
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28.
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To
minimize cold engine wear, you should a. | race the engine as soon as you start
it. | b. | to let it idle
just 30 seconds or so after startup, then drive it away gently. | c. | take short trips
only. | d. | race the engine before you turn it
off. | | |
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29.
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Which
of the following are parts of the fuel system? a. | Fuel filter | d. | all of the above | b. | Fuel
pump | e. | none of the
above | c. | Fuel lines | | | | |
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30.
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Which
of the following is true for octane ratings? a. | A higher octane rating has a higher resistance to
detonation. | b. | A lower octane rating has a higher resistance to
detonation. | c. | Most cars will require the use of 97 or 98 octane
gasoline | d. | If detonation can be heard during normal operation, you should
try to use a lower-octane fuel. | | |
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31.
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All
of the following are additives found in gasoline EXCEPT a. | anti-oxidants. | c. | detergents. | b. | fuel line lubricants. | d. | corrosion inhibitors. | | | | |
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32.
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What
is the typical Air/Fuel ratio?
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33.
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All
of the following statements about the fuel system are correct EXCEPT a. | The computers
use electrical signals from sensors, and computer processing units to control the air and fuel
mixture. | b. | The fuel is injected directly into the combustion chamber and
is ignited by the heat of compression. | c. | The fuel mixes with incoming air to create the intake charge
that passes into the cylinders. | d. | The fuel injector sprays fuel in response to electrical signals
from a computer. | | |
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34.
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What
development has the most significant impact on the control of emissions? a. | lubrication
system | c. | computer with
OBD II | b. | air conditioning system | d. | ignition system | | | | |
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35.
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What
is the minimum level of fuel you should keep in you fuel tank and why? a. | one-quarter
level | c. | three-quarter
level | b. | one-half level | d. | one-eighth level | | | | |
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36.
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What
can indicate a rich air/fuel mixture? a. | a strong odor of gasoline | c. | burned exhaust valves | b. | frequent
stalling | d. | black smoke from
the tailpipe | | | | |
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37.
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The
best procedure for starting a flooded engine is to a. | pump the
throttle several times while trying to start the engine. | b. | to turn off the
ignition and wait for 10 or 15 minutes. | c. | replace the fuel injectors, then start the
engine. | d. | listen to see if the fuel pump is running when you turn the key
“ON”. | | |
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38.
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A
complete circuit includes all of the following EXCEPT a. | sources of
electrical power. | c. | test
instruments. | b. | an electrical load. | d. | conductors. | | | | |
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39.
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Which
of the following is correct? a. | The battery produces electricity through a mechanical
reaction. | b. | A battery stores chemicals that react on demand to produce
electricity. | c. | A battery stores electricity. | d. | Within the
automotive battery, there are plates made from two similar metals. | | |
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40.
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What
precaution should be observed when working on a battery? a. | Remove the
positive cable first. | c. | Wear eye
protection. | b. | Wear cotton gloves. | d. | Clean the battery before beginning
work. | | | | |
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41.
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If a
battery with removable vent caps needs distilled water frequently, it may mean that the charging
system is a. | undercharging. | c. | charging
properly. | b. | overcharging. | d. | not functioning. | | | | |
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42.
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You
can use a battery hydrometer to check a. | the starting system operation. | c. | the fluid level of the battery. | b. | the coolant
freeze strength. | d. | a battery's
state of charge. | | | | |
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43.
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Common starter system components include all of the following EXCEPT a. | Starter
motor. | c. | Flywheel ring
gear. | b. | Alternator. | d. | Starter solenoid. | | | | |
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44.
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All
of the following statements about fuses are correct EXCEPT a. | replacement
fuses should have the same amperage rating. | b. | a fuse is a
safety device. | c. | replacement fuses should have a higher amperage
rating. | d. | replacing fuses does not automatically solve an electrical
problem. | | |
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45.
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What
is the safest course of action to follow if a warning light comes on while you are
driving? a. | Slow down, but
continue to drive. | b. | Hope it is a false alarm and ignore
it. | c. | Increase speed
and drive to the nearest repair center. | d. | Stop, shut off the engine, and check the system
indicated. | | |
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46.
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Which
of these functions is most important to engine life? a. | Changing the
fuel filter. | c. | Changing the
engine oil. | b. | Replacing the fan belt. | d. | Checking the vehicles charging
system. | | | | |
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47.
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All
of the following statements about engine oil are correct EXCEPT a. | Dirt, water
vapor, and acid in the oil cannot seriously harm the moving parts. | b. | Automotive
engines are designed for low emissions and require clean oil. | c. | Done at frequent
intervals, this service will help your engine run efficiently for a long
time. | d. | You can save substantial amounts of money by changing your own
oil and oil filter. | | |
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48.
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Which
groups establish standards for engine oil? a. | API, ILSAC, and MSRP | c. | API, ILSAC, and SAE | b. | CH-4, CF-4, and
SL | d. | ILSAC, WD-40,
and 10W30 | | | | |
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49.
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All
of the following statements about multi-viscosity oils are correct EXCEPT a. | Multi-viscosity
oils are never recommended in owner's manuals. | b. | Multi-viscosity
oils still thin out from an increase in temperature, but they just don’t thin out as fast as
single viscosity oils. | c. | Multi-viscosity oils offer fuel economy advantages and improved
protection from wear. | d. | The multiple numbers indicate that the oil has been tested for
both cold weather and hot weather protective ability. | | |
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50.
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All
of the following are functions of the cooling system EXCEPT a. | Controls
temperature | d. | Radiates
heat | b. | Reduce dirt,
water vapor, and acid | e. | Absorbs
heat | c. | Circulates
coolant | | | | |
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51.
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What
component regulates how much coolant is allowed to flow to the radiator? a. | Radiator | c. | Coolant
pump | b. | Coolant recovery
system | d. | Thermostat | | | | |
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52.
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What
does white smoke from the tailpipe indicate? a. | Coolant is leaking out through the combustion
chamber. | b. | The engine is burning oil. | c. | A defective air
conditioning system. | d. | The air/fuel mixture is too rich. | | |
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53.
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What
can cause insufficient engine warm up? a. | The thermostat is stuck open. | b. | The thermostat
is stuck closed. | c. | The thermostat has a temperature rating that is too
high. | d. | The engine cooling fan is
inoperative. | | |
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54.
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All
of the following are true statements EXCEPT a. | The entire weight of the car rests on contact patches about the
size of your outstretched hand. | b. | For maximum traction and safety, tires should be checked
frequently. | c. | A tire and wheel form a wheel
assembly. | d. | Under inflated tires require less energy to roll don the
road | | |
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55.
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The
portion of the tire that comes in contact with the ground is a. | bead | c. | tire
size | b. | tread | d. | belt | | | | |
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56.
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The
following are common places to find the tire pressure placard for your car EXCEPT a. | front side door
edge or door jamb | c. | trunk or by the
spare tire | b. | inner surface of the glovebox
door | d. | the tire
sidewall | | | | |
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57.
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The
minimum safe tread depth is a. | 1/32 inch | c. | 2/16 inch | b. | 2/32
inch | d. | 10/32
inch | | | | |
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58.
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The
two types of brake mechanisms found on cars are a. | disc and drum. | c. | drum and parking. | b. | disc and
rotor. | d. | disc and
caliper. | | | | |
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59.
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All
of the following statements about ABS are true EXCEPT a. | During normal
braking the ABS pedal feels the same as non-ABS. | b. | The speed
sensors provide information on the speed of each wheel. | c. | ABS will always
stop a car faster regardless of the road conditions. | d. | The computer
will modulate the pressure as many as 10 or 15 times a second. | | |
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60.
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The
heater core is a. | an air to air
heat exchanger. | b. | actually a small radiator, or heat
exchanger. | c. | located in the engine compartment. | d. | part of the air
conditioner. | | |
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61.
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The
following statements about the heater are correct EXCEPT a. | The
lower-temperature coolant that has passed through the heater core then is returned to the electric
coolant heater. | b. | Air is directed through ducts to pass through the heater
core. | c. | he heater core transfers heat from the coolant to the air
passing through the fins of the core. | d. | A blower, or fan, pushes the warmed air through a series of
ducts and into the passenger compartment. | | |
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62.
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After
using the air conditioner, you notice clear water dripping onto the ground from the rear of the
engine compartment. Which diagnosis is correct? a. | The heater hoses
are leaking. | b. | The air conditioner hoses are
leaking. | c. | The water is moisture that collected on the
condenser. | d. | The water is moisture that collected on the
evaporator. | | |
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63.
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An
oily deposit on an air conditioner hose or connection indicated a. | normal
operation. | b. | too much oil in the air conditioning
system. | c. | a refrigerant leak. | d. | a coolant
leak. | | |
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64.
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Electric motors are used to operate all of the following accessory systems
EXCEPT a. | power
seats. | c. | rear window
defogger. | b. | power windows. | d. | power adjustable pedals. | | | | |
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65.
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When
operating the air conditioning system, you notice the clutch engages and disengages many times during
a one-minute period. Which diagnosis is correct. a. | There may be
blown fuses in the compressor clutch circuit. | b. | The system is
likely low on refrigerant. | c. | This is normal operation. | d. | Electrical
connections to motors that operate plenum doors may be defective. | | |
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