A closed vertical cylindrical vessel, 1.80m in diameter, 3m high is 8/10 full of oil (SG=0.85) and revolved about its vertical axis with a constant angular speed. The air inside the vessel is 135 kPa. a. Detemine the angular speed in radian per second necessary to set the vertex of the liquid surface 0.60m above the bottom of the vessel. b. What is the maximum pressure at the bottom of the tank during rotation? c. If the angular speed in rev/min is 128.71, determine the diameter of the portion free of liquid at the vessel in cm. d. If the angular speed is 200 rev/min, determine the area of the portion free of liquid at the bottom of the vessel.

A closed vertical cylindrical vessel, 1.80m in diameter, 3m high is 8/10 full of oil (SG=0.85) and revolved about its vertical axis with a constant angular speed. The air inside the vessel is 135 kPa. a. Detemine the angular speed in radian per second necessary to set the vertex of the liquid surface 0.60m above the bottom of the vessel. b. What is the maximum pressure at the bottom of the tank during rotation? c. If the angular speed in rev/min is 128.71, determine the diameter of the portion free of liquid at the vessel in cm. d. If the angular speed is 200 rev/min, determine the area of the portion free of liquid at the bottom of the vessel.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

A closed vertical cylindrical vessel, 1.80m in diameter, 3m high is 8/10 full of oil (SG=0.85) and
revolved about its vertical axis with a constant angular speed. The air inside the vessel is 135 kPa.
a. Determine the angular speed in radian per second necessary to set the vertex of the liquid surface
0.60m above the bottom of the vessel.
b. What is the maximum pressure at the bottom of the tank during rotation?
c. If the angular speed in rev/min is 128.71, determine the diameter of the portion free of liquid at the
vessel in cm.
d. If the angular speed is 200 rev/min, determine the area of the portion free of liquid at the bottom of
the vessel.

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