Advertisements
Advertisements
Question
The radius of the press plunger and pump plunger are in ratio of 50 : 4. If an effort of 20 kgf acts on the pump plunger, calculate the maximum effort which the press plunger can over come.
Advertisements
Solution
Effort acting on the pump plunger = E = 20 kgf
Load acting on the press plunger = L =?
So let radius of pump plunger = 50x = R and radius of press plunger = 4x = r
Now, `"L"/"E"=(π"R"^2)/(π"r"^2)`
`"L"/20=(50"x")^2/(4"x")^2=2500/16=625/4`
L = `625/4xx20`
L = 625 × 5
= 3125 kgf.
APPEARS IN
RELATED QUESTIONS
Describe a simple experiment to illustrate that air exerts pressure.
How does the atmospheric pressure change with altitude?
We do not feel uneasy even under enormous pressure of the atmosphere above as well as around us. Give a reason.
What is the purpose of a barometer?
What is a barometer?
State two uses of a barometer.
Name the instrument used to measure atmospheric pressure.
What is the purpose of a barometer? State two major defects of a simple barometer.
Air pressure is expressed in ______.
Briefly explain the concept of variation of atmospheric pressure.
