Advertisements
Advertisements
प्रश्न
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
उत्तर
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
संबंधित प्रश्न
The atmospheric pressure is nearly 105 Pa.
Nose bleeding may occur at a high altitude because
What do you mean by atmospheric pressure?
Give reason for the following:
Water does not run out of a dropper unless its rubber bulb is pressed.
Explain the following :
Water does not run out of a dropper unless its rubber bulb is pressed .
Why is the barometric height used as unit to express the atmospheric pressure?
State two uses of a barometer.
What is an altimeter? State its principle. How is its scale calibrated?
Atmospheric pressure at sea level is 76 cm of mercury. Calculate the vertical height of the air column exerting the above pressure. Assume the density of air 1.29 kgm−3 and that of mercury is 13600 kgm−3. Why the height calculated by you is far less than the actual height of the atmosphere?
If there is low pressure at the equator, what will be the condition of air pressure in the Arctic Zone?
