MMET 105 Final Exam Questions and Answers | Latest Update | 2024/2025 | 100% Pass
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Course
MMET 105
Institution
MMET 105
MMET 105 Final Exam Questions and
Answers | Latest Update | 2024/2025 |
100% Pass
What is the definition of mechanical advantage?
Mechanical advantage is the ratio of the output force exerted by a machine to the input force
applied to it.
What is the principle behind Pascal's law?
Pasc...
MMET 105 Final Exam Questions and
Answers | Latest Update | 2024/2025 |
100% Pass
What is the definition of mechanical advantage?
✔✔Mechanical advantage is the ratio of the output force exerted by a machine to the input force
applied to it.
What is the principle behind Pascal's law?
✔✔Pascal's law states that when pressure is applied to a confined fluid, it is transmitted
undiminished in all directions throughout the fluid.
What is the purpose of a hydraulic system in machinery?
✔✔The purpose of a hydraulic system is to transmit power through the use of pressurized fluid,
allowing for the efficient operation of heavy machinery.
What is the significance of the center of gravity in engineering?
✔✔The center of gravity is significant because it determines the stability of an object; an object
with a lower center of gravity is generally more stable.
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,What are the key differences between static and dynamic loads?
✔✔Static loads are forces that do not change over time, while dynamic loads vary with time,
such as those caused by moving objects or wind.
How does friction affect mechanical systems?
✔✔Friction opposes motion between surfaces in contact, which can lead to energy loss and
reduced efficiency in mechanical systems.
What is the purpose of a gear system in machines?
✔✔A gear system is used to transmit torque and change the speed or direction of rotation in
machinery.
What is the function of a bearing in mechanical design?
✔✔A bearing supports and reduces friction between moving parts, allowing for smoother
operation of machinery.
What role does thermal expansion play in material selection?
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, ✔✔Thermal expansion must be considered in material selection to prevent structural failure due
to temperature fluctuations.
What is the definition of a tensile test?
✔✔A tensile test is a method used to determine how materials behave under tension, measuring
their strength and ductility.
What is the purpose of a blueprint in engineering?
✔✔A blueprint serves as a detailed plan or technical drawing that outlines the specifications and
dimensions of a project.
What is the difference between a conductor and an insulator?
✔✔A conductor allows the flow of electrical current, while an insulator resists electrical flow
and prevents current from passing through.
How does the concept of conservation of energy apply to mechanical systems?
✔✔The conservation of energy principle states that energy cannot be created or destroyed; it can
only change forms, such as potential energy converting to kinetic energy.
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