1 Flashcards

1
Q

What component receives electricity from the battery for the purpose of cranking the engine?

A

Starter motor

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2
Q

What hydraulic valve limits pressure at the rear drum brakes when high pressure is applied to front disc brakes?

A

Proportioning valve

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3
Q

What is located directly over the cylinders?

A

Combustion chamber

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4
Q

Brake fluid level in the master cylinder is low, however no external fluid leaks are observed. What is the possible cause?

A

Worn disc brake pads

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5
Q

When 12.6 volts are available from the battery, but 1.2 volts are lost due to unwanted resistance, how much voltage will the starter motor receive?

A

11.4

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6
Q

When an engine is at operating temperature, under-hood components are very hot. Contact with any of these parts could result in:

A

Burns.

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7
Q

Everyone in the auto shop MUST wear safety glasses:

A

At all times.

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8
Q

What is the MOST common cause of premature engine component failure?

A

Poor maintenance

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9
Q

Which engine valve is the largest?

A

Intake

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10
Q

What electrical circuit has more than one path?

A

Parallel

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11
Q

The air/fuel mixture is ignited by?

A

Spark plug

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12
Q

What is the stop, drop, and roll rule?

A

Fire safety rule

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13
Q

How many CV joints do most drive axles have?

A

2

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14
Q

Drive belts that cracked or glazed should be:

A

Replaced

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15
Q

What component closes engine valves?

A

Valve spring

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16
Q

What is the most dangerous part of gasoline?

A

Vapors

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17
Q

Oil filter elements are made of?

A

Paper

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18
Q

What is the most common type of brake fluid?

A

DOT 3

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19
Q

Brake fluid contaminants may be removed by:

A

Flushing

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20
Q

What is the function of crankshaft counterweights?

A

Prevents vibration

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21
Q

What is the most modern type material used to make disc brake pad lining?

A

Ceramic

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22
Q

What valve is open on the exhaust stroke?

23
Q

When the piston has reached the top of its travel, it is said to be at: _______

A

Top dead center

24
Q

How many crankshaft revolutions are required to complete the four stroke cycle?

25
What component transfers piston movement to the crankshaft?
Connecting rod
26
An electrical measurement tool that measures volts, amps, and resistance is known as a/an: _______
Multimeter
27
What could be used to quickly check for electrical power in a circuit?
Test light
28
What is the voltage of a fully charged 12 volt battery?
12.66 volts
29
What could be used to test fuses, fusible links, and circuit breakers?
Test light
30
The starter motor rotates the engine for start up by engaging with the: _______
Flywheel
31
The alternating current produced in the alternator must be changed to: _______
DC current
32
What is the battery voltage rating on most automotive products?
Twelve
33
What component is responsible for charging the battery in an automobile?
Alternator ## Footnote The alternator generates electricity to charge the battery and power the vehicle's electrical systems.
34
Where can a technician find the VIN number of an automobile?
Left side of dash panel ## Footnote The VIN (Vehicle Identification Number) is typically located on the driver's side dashboard, visible through the windshield.
35
What color are most automatic transmission fluids?
Red ## Footnote Red is the common color for automatic transmission fluids, indicating their specific type and function.
36
What material is most often used to construct engine cylinder blocks?
Cast iron ## Footnote Cast iron is favored for its strength and durability in engine construction.
37
What could be the result of leaving spilled oil or fluid on the shop floor?
Falling ## Footnote Spilled oil or fluids create slippery surfaces, increasing the risk of slips and falls in the shop.
38
What is an important service procedure for extended engine life?
Change oil regularly ## Footnote Regular oil changes help maintain engine lubrication and prevent wear over time.
39
What term refers to the removal of air from the brake system?
Bleeding ## Footnote Bleeding the brake system ensures there are no air bubbles that can affect brake performance.
40
What cancer-causing material may be found in brake shoe dust?
Asbestos ## Footnote Asbestos was commonly used in brake materials but is now regulated due to health risks.
41
What component fits around the piston and forms a seal between the piston and cylinder block?
Piston rings ## Footnote Piston rings are crucial for maintaining compression and preventing oil leakage in the engine.
42
Disc brake calipers are larger than wheel cylinders; therefore, front brakes may be applied with greater _______.
Force ## Footnote The larger size of disc brake calipers allows them to exert more force on the brake pads.
43
Brake fluid is manufactured according to requirements of:
DOT ## Footnote The Department of Transportation (DOT) sets standards for brake fluid in vehicles.
44
What specifications should be followed when tightening wheel lug nuts?
Manufacturers ## Footnote Following manufacturer specifications ensures proper torque and safety of wheel installations.
45
What part of a new oil filter should be lubricated before installation?
Seal ## Footnote Lubricating the seal helps ensure a proper fit and prevents leaks when the oil filter is installed.
46
The purpose of the anti-lock brake system is to perform the pumping action for the _______.
Driver ## Footnote The anti-lock brake system (ABS) automatically modulates brake pressure to prevent wheel lockup during hard braking.
47
What safety item MUST be worn when working around batteries?
Eye protection ## Footnote Eye protection is essential to safeguard against acid splashes and electrical hazards.
48
What connection should be made LAST when installing a new battery?
Ground
49
What type socket should be used with an air impact wrench?
Impact ## Footnote Impact sockets are designed to withstand the high torque generated by impact wrenches.
50
Where can a technician find the VIN number of an automobile?
Left side of dash panel ## Footnote The VIN is commonly located on the driver's side dashboard, visible through the windshield.
51
What color are most automatic transmission fluids?
Red ## Footnote Red fluid typically indicates that the automatic transmission fluid is in good condition.
52
What material is most often used to construct engine cylinder blocks?
Cast iron ## Footnote Cast iron is favored for its strength and durability, although aluminum is also used in some applications.
53
What changes in the hydraulic system when cylinder size is varied?
Force applied ## Footnote Varying cylinder size affects the hydraulic pressure and the force exerted by the system.
54
What type noise is produced when the wear indicator touches the brake rotor?
Squeak ## Footnote A squeak alerts drivers that brake pads may need replacement due to wear.