Para by Para Questions Flashcards by Alina Sara

Q

Define Fluids

A

Any substance that can flow

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Q

Does sheering stress change volume?What does it change then?

A

No

Shape

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Q

Define Fixed Volume

A

Volume under atmospheric pressure

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Q

Cite differences between solids liquids and gases

A

.

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Q

Define Hydrostatics

A

properties of still water

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Q

Define Ideal Fluid.Give Examples

A

Fluid thats incompressible

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Q

Thrust

A

.

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Q

Pressure

A

.

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Q

Proof of liquid at rest

A

.

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Q

State units of pressure

A

Bar
atm
pascal
torr

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Q

Density

A

.

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Q

Relative Density

A

.

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Q

Expression for pressure exerted by fluid at rest

A

.

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Q

State and prove pascal’s law

A

.

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Q

Define Gauge and Absolute or actual pressure

A

.

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Q

Hydrostatic Paradox

A

.

Q

Hydraulic lift and brake

A

.

Q

Effect of gravity on pressure

A

.

Q

Define atmosphere and atmospheric pressure

A

.

Q

P(atm) varies with

9a

A

altitude height temp

Q

Pressure Devices

A

.

Q

Who invented Toricelli Vaccum?

A

.

Q

76 cm of Hg is known as

A

barometric height

Q

A1/A2 is known as

A

mechanical advantage

Q

What indicates a storm

A

less than 10 mm of hg drop

Q

Define manometer.How does it work?

A

.