3. A pressure of 200 psi is applied to one end of a piston that has a surface ar

Question

3. A pressure of 200 psi is applied to one end of a piston that has a surface area of 10 square inches. What is the
total force on the piston?
A. 20 pounds of force
B. 200 pounds of force
C. 2,000 pounds of force
D. This cannot be calculated with the information provided.

4. In the preceding question, if the other end of the piston has a surface area of 100 square inches, what would
be the pressure on this larger end?
A. 2,000 psi
B. 200 psi
C. 20 psi
D. 2 psi

5. If all other factors remain the same, increasing the surface area of a piston:
A. Tends to increase force.
B. Tends to decrease force.
C. Tends to decrease pressure (psi).
D. Both A and C

6. In the United States, the agency responsible for establishing guidelines related to employee safety is:
A. United States Safety
Department.
B. Office of Management and
Safety.
C. Occupational Safety and Health Administration.
D. No such agency exists.

7. When a submarine submerges, the water applies a pressure around the cylinder of the submarine that is:
A. Equal at all points around the
cylinder.
B. Greater on the top than it is
the bottom.
C. No pressure is applied; there is only force.
D. The force is equal, but the pressure changes along the length of
the cylinder.

8. The lock out/tag out procedure is important:
A. To protect the technician
from personal injury.
B. To protect the equipment
from damage.
C. Both of the above
D. Neither of the above

9. Personal protective equipment (PPE) is extremely important in providing a safe working environment for the
technician. Who is responsible for ensuring that every technician properly wears protective equipment?
A. The individual technician
B. The technician’s employer
C. The technician’s co-workers
D. All of the above

10. A simple hydraulic bottle jack follows all the rules of fluid power and hydraulic systems except for:
A. Flow, area, pressure.
B. Area, pressure, velocity.
C. Flow, velocity, area.
D. It follows all the rules of fluid power and hydraulic systems

Explanation / Answer

>> Solution 3

P = 200 psi

A = 10 in2

As, Force, F = A*P

=> F = 2000 lb

Solution 4

As, Force remais constant

& A = 100 in2

So, P = 2000/100 = 20 psi

Solution 5

Keeping All other Factors constant,

If we increase the area,

As, P = F/A

So, Pressure will be reduced

Solution 6

OSHA , i.e Occupational Safety & Health Administration is responsible for such...

Solution 7

Pressure at all points is equal

Solution 10

Option is D, ie. it follows all the rules of hydraulic system.

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