Consider a hydraulic jack being used in a car repair shop, as in the figure. The pistons have an area of Ap= 0,8 cm? and A= 0.04 m2, Hydraulic oil with a specific gravity of 0.870 is pumped in as the small piston on the left side is pushed up and down, slowly raising the larger piston on the right side. A car that weighs 13,000 N is to be jacked up. At the beginning, when both pistons are at the same elevation (h= 0), calculate the force F+ in newtons required to hold the weight of the car. 1. What height of mercury column will cause a pressure of 680 kPa? Use sg of mercury equals to 13.6 2. Determine the pressure in a vessel of mercury, specific gravity 13.6, at a point 20 cm below the surface. Express the answer in kN/m2.
Consider a hydraulic jack being used in a car repair shop, as in the figure. The pistons have an area of Ap= 0,8 cm? and A= 0.04 m2, Hydraulic oil with a specific gravity of 0.870 is pumped in as the small piston on the left side is pushed up and down, slowly raising the larger piston on the right side. A car that weighs 13,000 N is to be jacked up. At the beginning, when both pistons are at the same elevation (h= 0), calculate the force F+ in newtons required to hold the weight of the car. 1. What height of mercury column will cause a pressure of 680 kPa? Use sg of mercury equals to 13.6 2. Determine the pressure in a vessel of mercury, specific gravity 13.6, at a point 20 cm below the surface. Express the answer in kN/m2.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Consider a hydraulic jack being used in a car repair
shop, as in the figure. The pistons have an area of Ap=
0,8 cm? and A= 0.04 m2, Hydraulic oil with a specific
gravity of 0.870 is pumped in as the small piston on the
left side is pushed up and down, slowly raising the
larger piston on the right side. A car that weighs 13,000
N is to be jacked up.
At the beginning, when both pistons are at the same
elevation (h= 0), calculate the force F+ in newtons
required to hold the weight of the car.
1. What height of mercury column will cause a pressure of 680 kPa? Use sg of mercury equals to 13.6
2. Determine the pressure in a vessel of mercury, specific gravity 13.6, at a point 20 cm below the surface. Express the answer in kN/m2.
Transcribed Image Text:A2
Hydraulic oil
SG = 0.870
F2
A1
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