Hydraulic Elevator:
A hydraulic elevator is driven
through the use of an electric pump to move a hydraulic jack. The large
capacity of the elevator makes it suitable for transporting heavy
loads.Hydraulic lifts are used in a variety of different applications. They can
be found in automotive, shipping, construction, waste removal, mining, and
retail industries as they're an effective means of raising and lowering
people, goods, and equipment.
Elevator
is also known as……
a) pulley
b)
lever
c) lift
d) jack
How many cylinders are used in elevator?
a) two
b) three
c) four
d) five
Explanation:1.small area cylinder and large area cylinder
The area of the cylinders in elevator is…..
a) one is smaller than the other
b) same
c) not fix
d) none of these
Where the pressure is exerted in elevator?
a) on small area cylinder
b) on larger area cylinder
c) on both cylinders
d) none of these
When pressure is applied on small cylinder, this pressure is ……..distributed in liquid?
a) differently
b) equally
c) both a and b
Explanation:According to Pascal’s principle, the pressure is equal to the force divided by the area on which it acts. A pressure used on a piston produces an equal increase in pressure on the second piston in the system. If the area is 10 times the first area, the force on the second piston is 10 times greater, even the pressure is the same throughout the cylinder. The hydraulic press creates this effect, based on Pascal’s principle. Pascal also discovered that the pressure at a point in a fluid at rest is the same in all directions; the pressure would be the same on all planes passing through a specific point.
