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Pressure

Test Description: First Test

Instructions: Answer all questions to get your test result.

1) What is the absolute pressure experienced at a point on the bottom of a swimming pool 9 meters in depth?

A188200 Pa B1882 Pa C1000 Pa D500 Pa

2) A hydraulic lift is used to lift a heavy machine that is pushing down on a 3.0 m2 piston (A1) with a force (F1) of 4,000 N. What force (F2) need to be exerted on a .050 m2 piston (A2) to lift the machine?

A.666 N B66.66 N C666.66 N Dnone of the above

3) What is the absolute pressure in a depth of 100 meters of ocean water?

A1.08 x 10 ^ -6 B1.08 x 10^6 C1.08 x 10^5 Dnone of the above

4) The interior of a submarine located at a depth of 45 meters is maintained at normal atmospheric conditions. Find the total force exerted on a .20 m by .20 m square window. ( Hint: find absolute pressure then force ☺)

A21640 B216400 C541000 Dnone of the above

5) what is the unit for pressure?

Abarr, torr, mercury Batmospheric CPascal Dall of the above

6) what is pressure?

Athe magnitude of the force on a surface per unit volume Bthe magnitude of the force on a surface per unit time Cthe magnitude of the force on a surface per unit area Dthe magnitude of the force on a surface per unit perimeter

7) Which one has the highest pressure?

Alarge area Bmedium area Cmedium rare area Dsmall area

8) what is pascal's principle?

AAny externally applied pressure is not transmitted to all parts of the enclosed fluid BAny externally applied pressure is transmitted to all parts of an open fluid CAny externally applied pressure is sometimes transmitted to all parts of the enclosed fluid DAny externally applied pressure is transmitted to all parts of the enclosed fluid

9) You can exert 50 N of force on a piston with an area of 1.0 m2. If you are trying to lift a machine that weights 500 N, what must be the area of the piston on which the machine rests?

A5 B50 C10 D100

10) You decide to drive your vehicle, which has a weight of 100 N onto a piston that is 5.0m2, what weight machine can you lift if the piston on which it rests is 20 m2?

A200 B100 C300 D400

*select an answer for all questions

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