UNIT 5
CRITICAL THINKING QUESTIONS
REVIEW QUESTIONS
1. What is the difference between an internal combustion engine and an external
combustion engine?
An internal combustion engine ignites its fuel inside the engine, and an external
combustion engine ignites its fuel outside the engine
2. How is the field of physics related to mechanical engineering?
Physics is applied in a broad range of areas. It helps them figure things out like the flow of
fluids through pipes, or design of mechanical assemblies where components move, like in
an engine.
3. Explain the law of conservation of energy and why it is important for mechanics.
The law of conservation of energy says that energy can neither be created nor destroyed,
solely converted from one form of energy to another. Mechanics have to know that the
system they are working on has to always have the same amount of energy unless it's
added from the outside.
4. What is the goal of improving combustion modes?
The main goal of improving combustion modes is to improve automobiles and their fuel
systems. Vehicles are one of the most popular areas in mechanics because many people
considered them essential. Due to this, there are many trends in engineering dedicated to
improve its experience and to get the automobile industry into the next step.
5. What are the advantages of a higher degree in engineering?
With a higher degree, they can get better occupations specialized in what they want. It is
not the same fixing up a car and working as a constructor on a rocket. All those people who
want to get a better occupation or one that is more qualified needs more advanced studies.
Another advantage of this effort is that these people can earn more money each year
rather than any other engineer.
