Is Pneumatic cylinder used as a hydraulic cylinder, if so how?

Arvind kumar yadav

• Feb 27th, 2017

Like Hydraulic cylinders, something forces a piston to move in the desired direction. So we can use pneumatic cylinders as hydraulic cylinder with some modifications like a vessel for fluid storage, a...

Suriya

• Dec 5th, 2014

Pneumatic cylinder - Its being actuated with the help of air as a medium,instantaneous actuation and cant expel more load since its highly compressive load carrying is limited Hydraulic cylinder-Its b...

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santosh das

• Oct 31st, 2016

Displacement pump is a mechanical pump which is converted to mechanical energy to hydraulic energy.

Centrifugal pump is a mechanical device which is converted to mechanical energy to kinetic energy or pressure energy.

sahil sarpaul

• Jun 20th, 2016

In displacement pumps the fluid is confined in the space i.e. within the working boundary of the pump whereas in case of the centrifugal pumps the is not confined within the boundary instead its supplied uniformly and steadily to get the required motion.

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What is the Shearing Stress of Al, Steel & Stainless Steel for tonnage calculation?

santosh das

• Oct 31st, 2016

Stress is directly propositional to strain with elastic limit and constant young modulus is different for different metals, so we calculate stress.

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In which direction should a mill turn, throw up or in an approaching way between the pinion and the girth gear 

Ganesh ram.s

• Nov 1st, 2016

Usually ball and tube mills are working in the principal of Attrition ,Hammering

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When two walls are in contact each other, considering thermal contact resistance, What is the mode of heat transfer in the air gap present between two walls?

Chandrakant Sahu

• Sep 24th, 2016

Convective Heat Transfer

sourabh

• Sep 21st, 2016

Heat loss is minimum

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How to select the material of Pinion?

sourabh

• Sep 21st, 2016

Material should have good tensile and brittlness property.

manikanta

• Nov 2nd, 2015

Purpose [Power Transmission, Speed control] & Concentrated loads

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Sanjay

• Sep 10th, 2016

We will be familiar with the words MPFI and CRDI in the advertisement of some vehicles. But we will not be aware about these terminologies. The MPFI is otherwise known as the Multi point fuel injectio...

bhanu tomar

 Profile Answers by bhanu tomar Questions by bhanu tomar

• Oct 6th, 2012

MPFI means multi-point fuel injector. Latest 4 stroke and 4 cylinder engines consists of MPFI system which enables them to inject fuel at each cylinder at a single time.

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When HVOF was present why engineers design HVAF?

Geraskin

 Profile Answers by Geraskin Questions by Geraskin

• Sep 5th, 2016

HVOF has great success in spraying metal and cermet coatings, but the process is a bit too hot for the tungsten carbide which leads to carbide loss during spray. HVAF has been developed to spray carbi...

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Why we do Product Audit?

vatsal

• Aug 25th, 2016

Product audit is required to increase the quality of product and reduce rejection as well as wastage of material used to make a product. Manufactured product meet the calculations on paper or not is also known as Audit. Product Audit - making sure product meets all specifications.

sivabalan

• Apr 30th, 2016

Its verification of process constainability and Quality.

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What are the Efficiency of Gas, Steam, Hydro Turbines?

Prakash

• Jul 30th, 2016

Eiff =OP/IP

abdullah

• Jun 13th, 2016

(Q out - Q in)/Q in
the efficiency is the ratio between what we got over what we give. at any thing

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What is the difference between Pre-emtive and Non-pre-emtive Scheduling?

Koshy

• Jul 21st, 2016

NPE: First in first out.
Pre emtive depends on priority.

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How to design HVAC and ECM?

abdullah

• Jun 13th, 2016

You must calculate the load of the area or you can use HAP and then design the duct system.

parthiban

• Jun 8th, 2016

Using Revit MEP software

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Bending moment diagram for a UDL in cantilever beam.A. ParabolaB. TriangleC. Rectangle

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ramanan33  

 Profile Answers by ramanan33 Questions by ramanan33

• Member Since Jun-2008 | Jun 8th, 2008

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parabola

Emmanuel Inkoom

• Apr 20th, 2016

Parabola

mohammed shameem

• Apr 16th, 2016

Bending moment is proportional to x^2 ,so it represent (y=C*x^2 ) equation of parabola

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What is maximum efficiency of Carnot Engine?

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bhargavmech  

 Profile Answers by bhargavmech Questions by bhargavmech

• Member Since Jul-2009 | Aug 1st, 2009

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The maximum efficiency of the carnot engine only depends on two factors:

1 - The temperature of the hot reservoir (TH)
2 - The temperature of the cold reservoir (TC)

And is given by (TH - TC) / TH « or » 1 - TC / TH So by that we can see the maximum efficiency (100%) would be when the difference of temperatures between the two reservoirs is infinite.

sagar jain

• Apr 5th, 2016

In carnot engine, working fluid is ideal gas. The only possiblity that the efficiency of carnot engine to be 100% is when the temperature of reservoir comes to absolute zero.

Rakesh Sharma

• May 24th, 2014

There is not any even a single cycle having efficiency higher than the carnot cycle efficiency it means carnot engine having 100% efficiency.

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Why we do not use same technology to start both SI/CI engine?

H G Luhar

• Apr 4th, 2016

Auto ignition temp of petrol is higher than diesel

creative

• Mar 29th, 2016

Because diesel ignite by air pressure in cylinder and also low calorific value so we cannot use spark pluge in the CI Engine

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The thrust collar provided at steam end of steam turbine rotor why we not provide it at exhaust end.

Tarik

• Feb 16th, 2016

There is higher pressure at steam end so it will push the thrust collar in oppsite of exhaust end, rotor axial force is towards exhaust end because of pressure diffrence so thrust collar will balance the axial movement by steam pressure.

franksma

 Profile Answers by franksma Questions by franksma

• Nov 18th, 2010

It is not compulsary that the thriust collor should be in Steam inlet end,The thrust collor locations can be set on exhuast side also, it is all purely depends on the design of the steam turbine and the driven unit.

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Why temperature decreases as we move heigher?

bibekananda sahoo

• Feb 10th, 2016

Rays coming from the Sun is only due to radiation and radiation doesn't require any medium. Thus it does not affect the upper atmosphere of the Earth so we feel the sun rays (i.e hotness) whenever it ...

rpatwa11

 Profile Answers by rpatwa11 Questions by rpatwa11

• Dec 8th, 2010

Volume of air is constant around our globe or in other words the earth can be considered as isochoric system. As we move higher and higher the pressure decrease and at constant volume the pressure is directly proportional to temp. as a result temp will also decrease 

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What is the energy required to break the material is called as?

Bhargav

• Jan 29th, 2016

A material withstands upto its shear stress. Beyond that, impact energy breaks the material.

S.Biswas

• Dec 27th, 2015

Energy required to break a material is specified as the modulus of toughness of that material.

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rajat singh shishodia

• Jan 22nd, 2016

According to me while design of an car we must look about the forces will act open it because forces act in 3 ways suddenly, continuously, partially after that the heat produced by the fuel and engine...

Bhushan Kulkarni

 Profile Answers by Bhushan Kulkarni Questions by Bhushan Kulkarni

• Aug 10th, 2011

In car Designing, it's airo-dynamic shape play important role.other factors are center of gravity,air drag,centrifugal force & many others.

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What will happen by pouring diesel in petrol engine instead of petrol ?

aNKIT

• Dec 23rd, 2015

1. Diesel needs high ignition temp. to burn. If diesel compatible ignition provided to spark plug in the IC engine of petrol, combustion will definitely take place but only for one cycle and the whole...

gokul k

• Jun 26th, 2014

The ignition will not happen as diesel requires a large compression ratio. but the petrol engine will not have a sufficient pressure difference to ignite the diesel

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