A Pump Is Used to Circulate Oil in an Engine

question 90

Multiple Choice

A pump is used to circulate oil in an engine. If the diameter of the tube connecting the pump to the engine is increased by a factor of 2, the ration of the resulting pressure to the initial pressure in the pipe is

• A) 1/32.
• B) 1/16.
• C) 1/8.
• D) 1/2.
• E) 1/4.

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Definitions:

Pericardium

The pericardium is the fibrous sac that encloses the heart, providing it protection and the lubrication needed for its movements.

Lubrication

The process or technique of using a lubricant to reduce friction and wear between two surfaces in contact.

Sphincter Muscles

Ring-like muscles that constrict or close a bodily passage or orifice to control the passage of substances.

Arterioles

Small blood vessels that branch off from arteries and lead to capillaries, playing a critical role in regulating blood flow and pressure.