Understanding Engine Bottom End Components

Which of the following is a primary function of the engine's bottom end?

• To convert chemical energy into electrical energy

• To convert linear motion into rotational motion

• To store fuel for combustion

• To cool the engine components

What is the main purpose of the crankshaft in an engine?

• To compress air in the cylinders

• To transfer power from the pistons to the flywheel

• To ignite the air-fuel mixture

• To regulate the engine temperature

Which material is commonly used for manufacturing crankshafts due to its strength and durability?

• Aluminum

• Cast iron

• Titanium

• Steel

In crankshaft design, what is the purpose of counterweights?

• To increase the engine's power output

• To balance the crankshaft and reduce vibrations

• To improve fuel efficiency

• To enhance the engine's cooling system

What is the primary function of connecting rods in an engine?

• To connect the pistons to the crankshaft

• To supply fuel to the combustion chamber

• To cool the engine oil

• To regulate the engine's speed

Which of the following is a common material used for connecting rods due to its lightweight and strength?

• Copper

• Aluminum alloy

• Lead

• Plastic

What is the main purpose of the lubrication system in an engine?

• To clean the engine components

• To provide fuel to the engine

• To reduce friction and wear between moving parts

• To increase the engine's power output

Which component is responsible for distributing oil throughout the engine?

• Oil filter

• Oil pump

• Oil pan

• Oil cooler

In a lubrication system, what is the purpose of the oil filter?

• To cool the engine oil

• To remove impurities from the oil

• To increase oil pressure

• To store excess oil

Which type of lubrication system is commonly used in modern internal combustion engines?

• Splash lubrication

• Dry sump lubrication

• Wet sump lubrication

• Mist lubrication