What is a key element in engineering that involves repeating processes?
Heat Engines, Refrigerators, & Cycles: Crash Course Engineering #11

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Engineering, Physics, Science, Chemistry, Other
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11th Grade - University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Innovation
Repetition
Efficiency
Creativity
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of a cycle in engineering systems?
It increases the complexity of the system.
It allows systems to return to their initial state.
It limits the process to a single occurrence.
It prevents the system from repeating.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who was the inventor that first built a refrigerator using the closed vapor compression cycle?
Oliver Evans
Nikola Tesla
Thomas Edison
Jacob Perkins
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a heat engine?
To store energy
To convert heat into work
To cool down systems
To convert work into heat
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a heat engine, what is the role of the working fluid?
To absorb and release energy
To prevent energy transfer
To store energy permanently
To increase system complexity
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the refrigerant in the evaporator stage of a refrigerator?
It releases heat
It absorbs heat
It remains unchanged
It solidifies
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the compressor in a refrigeration cycle?
To raise the pressure and temperature of the gas
To maintain constant temperature
To lower the pressure of the gas
To convert gas into liquid
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