Mohan raj

• May 5th, 2013

If the suction,compression, power and exhaust are completed in two strokes of the piston, i.e one revolution of crank shaft, it is called as two stroke and if the four processes completed in four strokes of the piston, i.e two rev of crank shaft,it is called as four stroke engine.

Manpreet Singh

• May 10th, 2012

In two stroke SI & CI engine , there are two stroke of piston and one revolution of crankshaft to complete one cycle.....IN two stroke engine there are ports... But IN four stroke SI &CI engine , the...

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My name is Surya and I recently completed my b.tech in mechanical engineering as a fresher I have so many
roots to start my Career in the relevant field .In that I have selected some opportunities and has
1) In design field
2) In Power Plants Construction Field
3) In QC i.e in pipe inspection and testing field

...plz suggest me which one has good future in...

yogesh

• Dec 30th, 2014

Design field is a best field friend

prachi jain

• Aug 4th, 2014

Hello sir, my name is Prachi I complete B.Sc in microbiology.sir I am not intested in M.Sc ,what I do . Tell me some information in clinical research laboratory & MBA life scince best collage and how ...

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jamal khan

• Apr 22nd, 2015

What is casting parameters?

ADIRAJ C K

• Jul 12th, 2014

In process audit- The parameters of the machine (speed,feed,rpm etc) are taken into consideration but in Product audit- The parameters of the job (dimension,strength,surface finish etc...) is taken into consideration.

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chander shekhar

• Dec 10th, 2014

New?technology?create?new?reliable?product?to?the?customer

kantilal bhalerao

• Dec 9th, 2014

Technology create a new thing more than able.

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Why we put 1st gear for move a rest car instead of 4th gear

shaik samdani

• Sep 3rd, 2015

To move any vehicle from stationary condition we required more torque over than speed, in 1st gear drive wheel is smaller than the driven wheel so more torque generates. But in 4th gear drive wheel bi...

MAYANK JAISWAL

• Mar 16th, 2015

Bcoze a car in REST need more TORQUE to move (larger dia. of gear provide this torque).

Its same as we need larger force to push any object from rest, as compare to force needed to b keep a moving object in motion.

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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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Why steels are heat treatable and why not cast irons? If yes why?

akshat srivastava

• Aug 8th, 2017

Cast iron is not heat treated because it becomes brittle.

hvdwaard

 Profile Answers by hvdwaard Questions by hvdwaard

• Feb 16th, 2016

Steel is an Iron/Carbon Alloy for arguments sake. So the carbon is fully absorbed within the Iron.The carbon and iron re-settle in a various atomic micro-structures when heated and cooled down quickly...

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What are the factors that a real life designer must consider for designing a car in terms of motion?

jyotish kindo

• Dec 16th, 2015

Ground clearance

SANDEEP KUMAR

• Dec 5th, 2015

Wheel Base

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How to calculate CC of Motor Bike?

victor

• Nov 1st, 2017

0.7854 x bore x bore x stroke x number of cylinders

Engineering on Softwares

• Mar 18th, 2016

CC of motor bike is depends upon the piston displacement inside the engine cylinder. Area between top dead center and bottom dead dead center is the actual CC of motor bike engine.

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SMAW means Sheilded Metal arc welding.

vrsaikumar

 Profile Answers by vrsaikumar Questions by vrsaikumar

• Nov 4th, 2008

There are 2 types of metal arc welding... shielded metal arc welding and unshielded... OR we can also say as protected and unprotected, metal arc welding...SMAW is the the welding process which shie...

harikumar

• Mar 6th, 2007

hiSMAW: Shileded Metal Arc weldingIn smaw , the welding will be done by using electrodes. The selection of electrodes will be based on Parent metal that we are going to weld and strength of the weld m...

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aakashpanchal

 Profile Answers by aakashpanchal Questions by aakashpanchal

• May 7th, 2010

R21 is C H Cl2 F, therefore R21 is dichloro monofluoro methane.

vrsaikumar

 Profile Answers by vrsaikumar Questions by vrsaikumar

• Nov 4th, 2008

Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon. It is a colorless and odorless gas. Its critical point is at 178.5 ?C (451.7 K) and 517 MPa (51.7 bar). At tempe...

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How to found pully size? how many type off pully? why we used pully?

subrat

• Oct 9th, 2014

Pulley is used for torque transmission from one shaft to another shaft .. If the shafts are parallel to each other. We use pulley for easy to transfer torque through the belt or chain.. Thank you

vrsaikumar

 Profile Answers by vrsaikumar Questions by vrsaikumar

• Nov 4th, 2008

Uses: Pulleys are one of the types of transmission devices which are used for transmitting power from 1 shaft to another shaft with the help of belts of ropes. Types of pulleys: 1. Cast iron pulleys2...

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Why are the stages being provided in Boiler Feed Pump?

kit_inton

 Profile Answers by kit_inton Questions by kit_inton

• Jun 19th, 2011

Boiler feed pump stages deliver high discharge pressure from pump to overcome the pressure inside the boiler drum and pressure losses from pipe connections, and also friction loss.

sudeeb

 Profile Answers by sudeeb Questions by sudeeb

• Dec 20th, 2010

Boiler feed pump is a multi-stage centrifugal pump where no of impellers more than one usually >3 . Depending upon the boiler working pressure pump will select. The pump should have high positive suction to avoid cavitation, usually take more than 10m. feed water temperature will be more than>65'C.

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what is the difference between Seal and O-ring

Arun

• Sep 30th, 2011

Seal ring provide no gap between combustion chamber and crank case whereas o-ring selves as a lubrication to piston wall and piston.

Neeraj

• Aug 5th, 2011

"O" ring are used to prevent the leakage of oil in between two mating parts, while oil seal is used mainly on shaft to prevent the leakage of lubricants.

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How to select the gear & pinion material and which material effective selection

vikki

• Sep 18th, 2013

Numerous nonferrous alloys, cast irons, powder-metallurgy and plastics are used in the manufacture of gears. However, steels are most commonly used because of their high strength-to-weight ratio and l...

saeed

• Jun 10th, 2013

We select a gear which is perfect for purpose the material which can resist to wear and tear.

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Gajanan Anandache

• May 11th, 2007

R.K jain is the best book i prefered for it..

Guest

• Apr 22nd, 2007

The answer is quite complicated. ?the following discussion mainly concentrate on cooling in sub-tropical environment.?1. you?estimate the cooling loading of the building first. factors like buildin...

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pushpraj singh rathore

• Mar 22nd, 2007

Hi i think for L&T good communication skill & good knowldge of mech. engg. is must

sudhir singh chouhan

• Feb 9th, 2007

For written test you are required to have basic knowledge of all Mechanical subjects like FM, Material Sc, Mechanics, DOM & Manufacturing. Most friequently asked topics are Bernullies theorem, Pull...

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Arun

• Oct 16th, 2011

Its a powerful ERP software used for any phase of any indstry

jronak123

 Profile Answers by jronak123 Questions by jronak123

• May 27th, 2008

As a mechanical engineer point of view SAP is not useful much but i m in suzlon & i use SAP For drawing find from around 1000 parts by appprox time 1 minute , than clear GR (GOOD RECEIPT) By ...

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vishalkunjir

 Profile Answers by vishalkunjir Questions by vishalkunjir

• Mar 28th, 2009

Basically these SS 316 & SS 304 are Austenitic Stainless Steel i.e. These steel contains austenitic structure at room temperature. These steel cannot harden by any heat treatment, even after solution annealing structure is austenitc and this is the softest phase in Iron carbide diagram.

Ankit patel

• Feb 12th, 2007

As both of these have low carbon content ..so though we apply heat treatment ,there wiil not be much increse in hardness..it can be increased by caarburising or nitriding..

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challawar_mayur

 Profile Answers by challawar_mayur Questions by challawar_mayur

• May 13th, 2008

Generally 'annealing' is used in the preparation of the glass

challawar_mayur

 Profile Answers by challawar_mayur Questions by challawar_mayur

• May 13th, 2008

Generally the process of "annealing" is used in the manufacture of glass

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