APST Unit30 Part 1

What is one of the objectives of studying the chapter on small engines?

• To learn about the history of engines

• To identify and explain the principles of operation and the systems of small engines

• To design a new type of engine

• To memorize engine part numbers

Which of the following is a competency to be developed after studying this unit?

• Design a new engine model

• Discuss the uses of small engines

• Memorize engine part numbers

• Create a new fuel type

What is an internal combustion engine?

• An engine that uses water to create steam

• An engine that burns fuel inside a cylinder to create a force that drives a piston

• An engine that operates without fuel

• An engine that uses solar power

What is a spark plug used for in an engine?

• To cool the engine

• To ignite the air-fuel mixture

• To lubricate engine parts

• To measure engine temperature

What is the main function of an internal combustion engine?

• To burn fuel outside a cylinder

• To create a force that drives a piston

• To convert steam into mechanical energy

• To power electrical circuits

What type of engine was first developed before the internal combustion engine?

• Four-cycle engine

• Electric engine

• External combustion engine

• Jet engine

Which component of an engine is described as a sliding cylinder fitting within a cylindrical vessel?

• Crankshaft

• Block

• Piston

• Valve

What is the purpose of a crankshaft in an engine?

• To house engine cylinders

• To convert circular motion into reciprocal motion

• To compress the air-fuel mixture

• To take fuel and air into the combustion chamber

What is the process called in which burning fuel expands rapidly to drive the piston down?

• Exhaust stroke

• Power stroke

• Flywheel

• Venturi

Which component expels burned gases from a cylinder?

• Flywheel

• Carburetor

• Exhaust stroke

• Piston rings