An engine converts chemical potential energy found in fuel into ______________________ energy.

• chemical
• mechanical
• physical
• kinetic

Engine shaft orientation is based on the axis of the crankshaft as horizontal or vertical.

• True
• False

What does TDC stand for?

What does BDC stand for?

What is the second stroke of the Four Stroke Theory?

• Ignition/Power
• Compression
• Exhaust
• Intake

What is the third stroke of the Four Stroke Theory?

• Ignition/Power
• Compression
• Exhaust
• Intake

In what stroke of the Four Stroke Theory does the electrical current create a spark?

• Ignition/Power
• Compression
• Exhaust
• Intake

In what stroke of the Four Stroke Theory creates a vacuum with low pressure as the piston moves down the chamber?

• Ignition/Power
• Compression
• Exhaust
• Intake

What is the period during engine operation when both intake and exhaust valves are open at the same time?

• Timing
• Valve Agrument
• Magnetic Force
• Valve Overlapping

What are the inputs of the internal combustion process?

• Fuel
• Carbon Dioxide
• Oxygen
• Water
• Heat