CH2: Internal Combustion Engine (ICE) - W2

Who invented the first successful four-stroke engine known as the 'Otto cycle'?

• Christian Huygens

• Jean Joseph Étienne Lenoir

• Nikolaus August Otto

• Sir Dougald Clerk

Who received the first patent for a gas-fueled car?

• Christian Huygens

• Jean Joseph Étienne Lenoir

• Karl Benz

• Rudolph Diesel

Who designed the diesel engine which is heavier and more powerful than gasoline engines?

• Christian Huygens

• Jean Joseph Étienne Lenoir

• Nikolaus August Otto

• Rudolph Diesel

What is the fundamental principle behind an internal combustion engine (ICE)?

• Harnessing electrical power for propulsion

• Utilizing air pressure for motion

• Converting chemical energy into mechanical energy

• Converting heat energy into kinetic energy

What is the purpose of a cylinder in an internal combustion engine?

• To burn fuel explosively

• To convert chemical energy to mechanical energy

• To transmit power from piston to crankshaft

• To enclose the chamber where fuel is burnt

What is the air/fuel mixture in an internal combustion engine?

• A mixture of fuel and air in a specific ratio

• The movement of the intake valve

• The process of compression

• The movement of the exhaust valve

How is power transmitted to the wheels in an internal combustion engine?

• Connecting rod to crankshaft

• Crankshaft to drive shaft

• Drive shaft to wheels

• All of the above

What is a stroke in an internal combustion engine?

• Complete half crankshaft rotation

• Complete piston movement up and down

• The process of combustion

• The movement of the intake valve

When comparing 4-stroke and 2-stroke engines, which statement is correct?

• 4-stroke engines are less fuel-efficient than 2-stroke engines.

• 2-stroke engines have a more complex design with additional moving parts.

• 4-stroke engines have intake and exhaust strokes.

• 2-stroke engines are generally heavier than 4-stroke engines.

What is the stoichiometric air/fuel mixture ratio for an internal combustion engine?

• 14.7:1

• Less than 14.7

• More than 14.7

• Depends on the fuel type