Automotive Maintenance 101: Spark Plugs and Brake Pads

What is the primary function of a spark plug in an internal combustion engine?

• To cool the engine

• To ignite the air/fuel mixture

• To lubricate the engine's moving parts

• To filter the engine oil

Which type of spark plug is known for its durability and better performance in high-compression engines?

• Copper spark plugs

• Silver spark plugs

• Platinum spark plugs

• Iridium spark plugs

What is a common sign that your vehicle's brake pads need to be replaced?

• A high-pitched squealing noise when braking

• The vehicle accelerates faster

• The engine oil appears darker

• The headlights dim when braking

What is the first step in changing brake pads?

• Remove the wheel

• Apply the parking brake

• Loosen the brake fluid reservoir cap

• Pump the brake pedal

Which of the following is NOT a type of spark plug?

• Ceramic spark plugs

• Copper spark plugs

• Platinum spark plugs

• Iridium spark plugs

How does a worn spark plug affect a car's performance?

• Increases fuel efficiency

• Improves acceleration

• Causes misfiring and poor fuel economy

• Enhances engine cooling

What material is commonly used for the electrode in high-performance spark plugs to ensure longevity and durability?

• Steel

• Copper

• Platinum

• Iridium

When inspecting brake pads, what minimum thickness is generally considered safe?

• 1 mm

• 2 mm

• 3 mm

• 4 mm

What tool is essential for compressing the brake caliper piston when changing brake pads?

• Torque wrench

• C-clamp

• Pliers

• Screwdriver

Why is it important to check the brake fluid level when changing brake pads?

• To ensure proper lubrication of the new pads

• To reset the vehicle's brake sensors

• To prevent air from entering the brake lines

• To adjust the brake pressure for the new pads