Explain About Hydraulic Jack?

Explain About Hydraulic Jack?
by

1 Answer

Answer :

It consists of a cylinder and ram. The oil is forced into the cylinder. The load is lifted by this jack according to the pressure of the oil. In its working system the oil is filled through the oil plug in the oil reservoir. It has a tube at the lower en d and a non return valve. When the lever is operated up and down, plunger moves up in the tube supplying the oil and it down the non return valve which allow the oil into the cylinder which causes the ram raises. The ram raises according to the pressure of the oil which lift the load accordingly.
by

Related questions

Where can I buy a hydraulic car jack?

Description : Where can I buy a hydraulic car jack?

Last Answer : You can buy a hydraulic jack at either auto zone in person or ebay where you buy from a person, not a retailer, either way works great to get it quick and cheap.

Who would use a hydraulic jack?

Description : Who would use a hydraulic jack?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

Explain About A Screw Jack?

Description : Explain About A Screw Jack?

Last Answer : A Screw jack consists of a body and a square threaded screw rod. Its screw rod has a head and a revolving pad. This screw rod acts on both directions according to the action of the lever attached ... with the handle. It is used to lift the loads therefore it is mostly used by motor mechanics.

Penetration of a trailed type disc harrow is not affected by a) Size of disc b) Angle of disc c) Weight of disc d) Tractor hydraulic system Ans. d

Description : Penetration of a trailed type disc harrow is not affected by a) Size of disc b) Angle of disc c) Weight of disc d) Tractor hydraulic system Ans. d

Last Answer : Ans. d

Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel

Description : Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel

Last Answer : Braking performance 

Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel

Description : Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel

Last Answer : ans d

Combine may be self propelled or ………driven type. a. Pneumatic b. Hydraulic d. None of above

Description : Combine may be self propelled or ………driven type. a. Pneumatic b. Hydraulic d. None of above

Last Answer : Ans-    c. PTO

The reaper in a tractor can be raised or lowered by a) Mechanically b) Pneumatic system c) Hydraulic system d) Electric system

Description : The reaper in a tractor can be raised or lowered by a) Mechanically b) Pneumatic system c) Hydraulic system d) Electric system

Last Answer : Hydraulic system

A screw jack has 4 threads per inch. The mean radius of the thread is 2.338 inches. The mean diameter of the bearing surface under the cap is 3.25 inches. What is the turning moment required to raise the bload of 150 kg ( a.5.61 kg-inch b.50.6 kg-inch c.107 dynes d.30.3 kg-inch e.23.6 kg-inch

Description : A screw jack has 4 threads per inch. The mean radius of the thread is 2.338 inches. The mean diameter of the bearing surface under the cap is 3.25 inches. What is the turning moment required to raise the bload of 150 kg ( a.5.61 kg-inch b.50.6 kg-inch c.107 dynes d.30.3 kg-inch e.23.6 kg-inch

Last Answer : b. 50.6 kg-inch

The maximum efficiency of a scres jack having square threads and friction angle of 30 degree will be a.0.2 b.0.11 c.0.05 d.0.33 e.0.09

Description : The maximum efficiency of a scres jack having square threads and friction angle of 30 degree will be a.0.2 b.0.11 c.0.05 d.0.33 e.0.09

Last Answer : d. 0.33

Efficiency of a screw jack in maximum when its 31 helix angle, ? is a.45 + ?/2 b.107 dynes c.? d.45 - ?/2 e.45?

Description : Efficiency of a screw jack in maximum when its 31 helix angle, ? is a.45 + ?/2 b.107 dynes c.? d.45 - ?/2 e.45?

Last Answer : d. 45 - ?/2

Explain the manufacturing process of hydraulic lime.

Description : Explain the manufacturing process of hydraulic lime. 

Last Answer : 1. Burning of impure limestone / kankar containing clay containing less than 30 %. With coal or charcoal as fuel. 2. If soft limestone is used, it is powdered, mixed with clay in right proportion & ... long as it is protected from air & moisture. After slaking it should be used within a week. 

Explain the working principle of the following dynamometers with suitable sketches, if necessary: (i) Hydraulic Dynamometer. (ii) Eddy Current Dynamometer.

Description : Explain the working principle of the following dynamometers with suitable sketches, if necessary: (i) Hydraulic Dynamometer. (ii) Eddy Current Dynamometer.

Last Answer : (i) Hydraulic Dynamometer: In principle, hydraulic dynamometer construction is similar to that of a fluid flywheel. Hydraulic dynamometer consists of an impeller or inner rotating member coupled to the output shaft ... Eddy current oppose the rotor motion thus loading the engine.

Explain the principle of working of hydraulic actuator and state its advantages.

Description : Explain the principle of working of hydraulic actuator and state its advantages.

Last Answer : Working Principle of Hydraulic Actuator  1. According to Pascal, when there is an increase in pressure at any point in a confined incompressible fluid, then there is an equal increase at every point in ... better performance than others. 3. Power to weight ratio of these actuators is high.

What are actuators? Explain Mechanical and Hydraulic actuators type with advantages and disadvantages.

Description : What are actuators? Explain Mechanical and Hydraulic actuators type with advantages and disadvantages.

Last Answer : Actuators:- An actuator is a component of a machine that is responsible for moving or controlling a mechanism or system. Mechanical Actuator:- A mechanical actuator functions to ... the control of the system due to the transmission lines and oil viscosity changes from temperature

Enlist and explain in brief the functions of Hydraulic oil in a hydraulic system

Description : Enlist and explain in brief the functions of Hydraulic  oil in a hydraulic system

Last Answer : Following are the main functions of hydraulic fluid: 1. To transmit power(basic purpose). 2. To lubricate the moving parts. 3. To seal gaps and clearances between mating components. 4. To dissipate heat generated by internal friction. 5. To prevent rust and corrosion of internal parts.

List and explain the components of a hydraulic system.

Description : List and explain the components of a hydraulic system.

Last Answer : Components Hydraulic: Hydraulic pump- Supply fluid to the components in the system. Pressure in the system develops in reaction to the load. Hence, a pump rated for 5,000 ... mechanical components and need to be removed along with other contaminants.  Seals, fittings and connections.

Can anyone please explain this Jack Kerouac quote?

Description : Can anyone please explain this Jack Kerouac quote?

Last Answer : My take is that it hints at loneliness, but also a sort of freedom. There are no people to witness or share his actions. But thats kinda the way Kerouac likes it. You dig?