basic engine systems test

What is the fuels octane rating mean

• The octane rating measures fuel's color.
• The octane rating indicates fuel's price.
• The octane rating indicates a fuel's resistance to preignition.

• The octane rating shows the fuel's energy content.

Oil ______, also known as viscosity, is a measure of how thick and flexible an oil is at different temperatures.

What does viscosity measure?

• The density of a liquid

• The solubility of a substance

• The resistance of a liquid to flow

• The conductivity of a liquid

What is the typical effect of increasing temperature on the viscosity of a liquid?

• Increases viscosity

• Decreases viscosity

• Does not affect viscosity

• First increases, then decreases viscosity

Why is it important to use the coolant that is designed for that car

• coolant designed for that car to ensure proper engine function and prevent damage.

• All coolants are the same regardless of the vehicle.
• Coolant type does not affect engine performance.
• its not use no coolant at all

Identify the component in the picture:

• Thermistor

• Pressure Cap

• Water Pump

• Thermostat

True or False: An engines cooling system is designed to transfer excess heat from the engine to the atmosphere.

• True

• False

What is the primary function of a fuel injection system in an automotive engine?

• To lubricate the engine's moving parts

• To cool the engine

• To mix fuel with air to produce a combustible mixture

• To filter impurities from the fuel

What is the blue line pointing to

• Chrank shaft

• Cam shaft

• fly wheel

• camgear

What is part is the blue line pointing to

• crankshaft

• piston

• lifters

• crankgear