Cars

Question 1

Cars

List the steps of jumping your car.

Answer 1

1. Attach a red clip to dead + terminus

2. Attach a red clip to live + terminus

3. Attach a black clip to live - terminus

4. Attach a black clip to dead metal surface (unpainted and away from the battery)

5. Run the live** vehicle for a few minutes (then try the **dead)

Question 2

Cars

Your car is clicking and the lights are dim when you try to start the engine (which maybe rolls over once or twice but doesn’t really engage).

What is the likely issue?

Answer 2

A bad alternator

Question 3

Cars

What is the likely cause of clunking or creaking in your car?

Answer 3

Worn-out suspension components

Question 4

Cars

What is the likely cause of ticking in your running car?

Answer 4

Timing belt issues

Question 5

Cars

What is the likely cause of ‘squealing’ in your running car?

Answer 5

Power steering belt issues

(especially if noise present when turning the wheel)

Question 6

Cars

What is the likely cause of popping or bangs coming from your running car?

Answer 6

Engine backfires

(from worn-out spark plugs, an imbalanced air/fuel mixture, out-of-sync ignition timing, or dirty air filters)

Question 7

Cars

What is the likely cause of a grinding noise coming from your running car?

Answer 7

Transmission issues

(an issue with gears meshing together - especially if associated with rough shifting)

Question 8

Cars

What is the likely cause of a bubbling or gurgling noise coming from your running car?

Answer 8

Air-fluid mixing

could be a leak in the coolant system (allowing air into the radiator) or a blown gasket head (allowing exhaust out of the engine)

Question 9

Cars

Car vibrations might be coming from what engine issue?

Answer 9

Worn/loose engine mounts

Question 10

Cars

Car vibrations whenever you touch the brake pedal might be coming from what issue?

Answer 10

Warped brake rotors

Question 11

Cars

Serious car shaking could be caused by what engine issue?

Answer 11

Timing belt issues

Question 12

Cars

Which wornout parts of the car might typically cause the car to pull or lean to one side?

Answer 12

Wheels/tires, steering, suspension, or shocks

Question 13

Cars

Spongy brakes don’t respond well and are most often caused by what?

Answer 13

Air in the brake lines

or

low/old brake fluid

Question 14

Cars

If your steering wheel feels loose, it is likely due to an issue in which car parts?

Answer 14

Tie rods and tie rod ends

Question 15

Cars

If your steering wheel feels difficult to turn, it is likely due to an issue in which car parts?

Answer 15

Either the power steering fluid, pump, or belt

Question 16

Cars

If your car has a moldy/mildewy smell which does not come from the cabin interior, from where is it likely arising?

Answer 16

A dirty cabin air filter

or

water in the AC

Question 17

Cars

A smoky smell in your car could most likely indicate what?

Answer 17

Leaking fluid that’s burning up on hot engine or exhaust surfaces

(also could be a worn clutch if in a manual transmission vehicle)

Question 18

Cars

Smelling persistent exhaust in your car could most likely indicate what?

Answer 18

A hole in the fuel or exhaust system

Question 19

Cars

A sulfur smell in your running car indicates a problem in which components?

Answer 19

Battery

or

catalytic converter

Question 20

Cars

A sweet smell in your running car indicates a problem in which components?

Answer 20

A coolant leak

Question 21

Cars

About how often should engine oil be changed?

Answer 21

Every 4,000 - 5,000 miles driven

Question 22

Cars

About how often should you get your tires rotated?

Answer 22

Every 5,000 - 7,500 miles driven

Question 23

Cars

When should you first get your engine air filter replaced?

How about the fuel filter?

Answer 23

30,000 miles driven

30,000 miles driven

Question 24

Cars

About how long do most car batteries last?

Answer 24

4 - 5 years

Question 25

# Cars About when should brake fluid and pads be replaced?

Answer 25

Before 45,000 miles driven

Question 26

# Cars What is the name for the aluminum alloy frame that makes up most of your car engine and acts as a housing?

Answer 26

Cylinder block

Question 27

# Cars List the three major structures that make up your car engine's combustion chamber.

Answer 27

(1) Cylinder (2) Cylinder head (3) Piston

Question 28

# Cars What is combined in your car engine's combustion chambers to create the expansive energy which moves the pistons?

Answer 28

Fuel, air, pressure, electricity

Question 29

# Cars What is the name for the large piece of metal that sits over the top of your car engine’s cylinders?

Answer 29

Cylinder head

Question 30

# Cars What structure converts the up-down motion of the pistons in your car's engine into rotational energy?

Answer 30

The crankshaft

Question 31

# Cars What large piece of metal sits at the bottom of your car engine's cylinder block and houses the crankshaft?

Answer 31

The crankcase

Question 32

# Cars What structure acts as the 'brain' of your car's engine and works in conjunction with the crankshaft via a timing belt to make sure intake and outtake valves open and close at just the right time for optimal engine performance?

Answer 32

The camshaft

Question 33

# Cars What structures are connected via your car engine's timing belt/chain?

Answer 33

The **crankshaft** and **camshaft**

Question 34

# Cars The _________ is the mechanical system that’s mounted to the cylinder head and controls the operation of the valves. It consists of valves, rocker arms, pushrods, and lifters.

Answer 34

The **_valvetrain_** is the mechanical system that’s mounted to the cylinder head and controls the operation of the valves. It consists of valves, rocker arms, pushrods, and lifters.

Question 35

# Cars Identify the role of each of the following portions of your car engine's valvetrain: **Valves** **Rocker arms**

Answer 35

Identify the role of each of the following portions of your car engine's valvetrain: **Valves** - (intake) bringing in air and fuel; (outtake) removing exhaust **Rocker arms** - timing connections between the camshaft and valves

Question 36

# Cars What structure of you car's engine provides fuel to the combustion chambers? What structure of you car's engine provides electricity to the combustion chambers?

Answer 36

Fuel injectors Sparkplugs

Question 37

# Cars Modern combustion engines are \_\_\_\_\_\_\_-stroke engines.

Answer 37

Modern combustion engines are **_four_**-stroke engines.

Question 38

# Cars Describe the four steps of action of a piston / combustion chamber in a four-stroke engine.

Answer 38

Question 39

# Cars What structure within your car recharges the battery by turning mechanical energy into electrical energy?

Answer 39

The **alternator** (thus running the car's electrical system)

Question 40

# Cars What is the function of your car's alternator?

Answer 40

The alternator **generates electricity** that transfers mechanical energy into electrical energy by an alternating current (AC). In cooperation with the battery, **it is used to provide power to the vehicle’s electrical system**. As the vehicle moves, the alternator uses the mechanical energy created to recharge the battery. Battery struggles can be the result of overcharging from the alternator.

Question 41

# Cars What part of your car is specifically used to cool down the engine?

Answer 41

The radiator

Question 42

# Cars Which component of your car is a gearing device that provides variable ratios between the engine output and the differential input?

Answer 42

The transmission

Question 43

# Cars Car transmissions are gearing devices that provides variable ratios between the engine output and the differential input. They shift via automatic transmission ________ controlled by a \_\_\_\_\_\_\_\_.

Answer 43

Car transmissions are gearing devices that provides variable ratios between the engine output and the differential input. They shift via automatic transmission **_fluid_** controlled by a **_computer_**.

Question 44

# Cars What is the name of the car shaft that carries the engine's power through the transmission to the axles and wheels?

Answer 44

The drivetrain

Question 45

# Cars What devices transmit the energy of your car's drivetrain out laterally through into the wheels (a perpendicular turn in both directions)?

Answer 45

U-joints to **differentials**

Question 46

# Cars Describe a little bit of the complex mechanism of the rear differential in your car.

Answer 46

Question 47

# Cars What is the purpose of a catalytic converter in certain vehicles?

Answer 47

To remove pollutants and make exhaust gasses less harmful to the environment. The catalytic converter is an automotive exhaust-system component, made of stainless steel, containing a catalyst to reduce oxides of nitrogen (NOX), and/or hydrocarbon (HC), and carbon monoxide (CO), in tailpipe emissions.

Question 48

# Cars What portion of your vehicle reduces the noise emitted by the car exhaust system?

Answer 48

The muffler