Of course they are needed because without them the society wouldn’t be as nice as it is right now and plus there would be no more buildings ! :)
Answer:
C. Provides lubrication to parts
Explanation:
Flywheel :
Flywheel is a device which stored the mechanical energy.This energy can be use when more energy required during any operation.Due to high moment of inertia of the flywheel it resist the change in the speed .The flywheel is attached to the crank shaft at the rear side of the engine.
The flywheel perform following function:
1. It connects the crankshaft and the transmission system.
2.It makes the engine operation smooth.
3.It contains gear and other parts of the engine.
But it can not provide lubrication.
C. Provides lubrication to parts
Answer:
1. Industrial revolution was initiated or borne through the production of Steel
2. World War 1 led to the development of Tanks
Explanation:
The production of Steel through the Bessemer Process in the middle of the nineteenth century was a major technological development that spurred the Industrial revolution. This invention led to the widespread use of steel in the production of many things including vehicles and airplanes.
During the First World War in 1914, soldiers found the use of just their armaments in battle as not so productive. This led to the development of Tanks in 1915 that would continue moving towards the enemy even when being shot at.
Answer: hardness
Explanation:
Hardness is a measure of a material's ability to resist plastic deformation. In other words, it is a measure of how resistant material is to denting or scratching. Diamond, for example, is a very hard material. It is extremely difficult to dent or scratch a diamond. In contrast, it is very easy to scratch or dent most plastics.
Neither of the two technicians (Technician A and Technician B) is correct.
<h3>What is an
engine vacuum?</h3>
An engine vacuum can be defined as a type of engine which is designed and developed to derive its force from air pressure that's being pushed against one side of the piston of an automobile, while having a partial vacuum on the other side.
In this scenario, we can infer and logically conclude that neither of the two technicians (Technician A and Technician B) is correct because engine vacuum is high when the engine is operating under light loads and vice-versa.
Read more on engine vacuum here: brainly.com/question/14602340
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