saravanakumar

• Mar 7th, 2013

If the volumetric efficiency increases the power had rise due to that pulling had raises

pradeep khanduja

• May 4th, 2007

Sir,For increasing the power requirement we need to increase cubic capacity of liquid.RegardsPradeep Khanduja

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Which operation converts the square block into circular shaft?

Awais

• Jan 11th, 2013

Lathe machine can effectively do so. By turning and cutting operation through employing the workpiece in the jig of the machine

shashank khandelwal

• Dec 16th, 2012

Forging & Casting (after melting) etc.

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Which is more elastic - Steel or Rubber?

Pankaj

• Oct 31st, 2012

Elasticity is the property by virtue of which body regain its original shape and size after removal of external force.

LDK

• Oct 29th, 2012

Steel have a more elasticity then any other material

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Why is the ice maker placed at the top of the refrigerator?

Vikrant Singh

• Oct 25th, 2012

Due to maintain the convection in refrigerator. When air is cool in refrigerator it moves downward and hot air moves upward because cold air is denser than hot air this phenomena is called as convection, so movement of air take place regularly.

Mallayya S M

• Oct 12th, 2012

In every refrigerator have the cooling place at the top order because the coolants have the high temperature as compared to outer means earth then it could have there is possible to happen become low temperature also not comfortable to user.

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How can elasticity of ductile material be double as brittle material?

Kiran

• Oct 13th, 2012

Molecular structure of ductile & brittle materials are different. Elasticity of both the cases can be well understood by tension/compression test, as you can notice ductile materials will yield & brittle will break.
Stress release in ductile is good in ductile.

Mallayya S M

• Oct 12th, 2012

Because the elasticity regains its shape and size.

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Being a mechanical engineer why do i prefer a software company?

shashank upadhyay

• Sep 15th, 2012

As I have computer language knowledge and I want to utilize this so I am more comfortable and productive with software company.

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What is fixed gear?

BHAUTIK USDADIYA

• Sep 7th, 2012

Main gear is known as fixed gear.

ahmedsaid2050

 Profile Answers by ahmedsaid2050 Questions by ahmedsaid2050

• Jan 26th, 2012

A fixed-gear it is single speed like bicycle (or fixed-wheel bicycle, sometimes known as a fixie) is a bicycle that has no freewheel, meaning it cannot coast, as the pedals are always in motion when the bicycle is moving.

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What is MPFI system?

vandita.t

• Sep 2nd, 2012

MPFI,multi point fuel injection system,it gives better distribution of fuel into the multi cylinder engine.equal amount of fuel to each engine results in better combustion and efficiency of the engine.

AJINKYA PATIL

• Aug 5th, 2012

MULTI POINT FUEL INJECTION SYSTEM .there are 3 to 4 fuel injectors are used to inject more fuel into the cylinder

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keta2o

 Profile Answers by keta2o Questions by keta2o

• May 30th, 2012

Thrust bearing is used when the applied force is parallel to the shaft and bearing axis .
In general most of thrust bearing begin with number 5xxxx and it is for the thrust bearing only , because there are some other types which can handle axial (thrust) and radial loads

manish

• Mar 19th, 2012

Thrust bearings have axial forces also.

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What is shear force in fluid particle?

nrj yadav

• May 23rd, 2012

The forces acting along the plane of fluid or perpendicular to the longitudinal axis of fluid particle will be called as shear force.

glaro

• Feb 13th, 2012

For newtonian fluids Shear force(T) is directly proportional to velocity gradient(du/dx).
T = mu*du/dt . Where mu is the coefficient of viscosity..

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After giving a bend to the sheet it will become rigid Why?

T240GUY

• May 21st, 2012

It acts to reinforce the metal. Similar to an i-beam. By adding a bend, it adds another axis to the metal which in turn reinforces the sheet. If you bend it again, it will become even more rigid.

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Some of high class sedan cars have two silencers why is that so? Does it actually help in economy of car? how?

t240guy

• May 21st, 2012

The pressure of the exhaust inside the exhaust pipe decreases as it reaches the "silencer". This is because the silencer acts as a larger chamber for the exhaust to expand in. As the exhaust expands,...

Avinash Narode

• May 2nd, 2012

It is useful in V engines in order to reduce back pressure. but in others like in Mahindra XUV it is just for nice appearance.

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What is meant by setting down?

vrsaikumar

 Profile Answers by vrsaikumar Questions by vrsaikumar

• Mar 25th, 2012

Setting down Operation is One of The Forging Operations, Others Being Drawing, upsetting, Fullering,bending punching,etc. when We Hammer down To Get Desired Shape,we can see the Hammer Spots which are...

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Yogesh Nawade

• Mar 14th, 2012

As we know transferring any system from one place to another place their we required power, We know in power system for transferring active power from source to load required reactive power .This power is mostly generated by capacitor.

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Biswajit Dhali

• Mar 1st, 2012

Developers: Frederick W. Taylor and his followers developed and refined the Time Study. Frank B. Gilbreth and his wife Lillian developed and refined the Motion Study. Actually the two studies are di...

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Why do we use solid shafts for transfer of power in case of pumps/ turbines & other machines why we use a hollow shaft (pipe) in universal joints of automobiles; although the rated load and twist is approx. the same.

Arun Govind Neelan

• Feb 27th, 2012

In automobile application we have to consider weight in addition to torque and strength. Hollow shaft has high torque transmitting capacity per unit mass compared to solid shaft. If you consider bending stress diagram for hollow it is min at centre so material requirement is minimum at centre.

ravindra sariya

 Profile Answers by ravindra sariya Questions by ravindra sariya

• Feb 16th, 2012

In case of turbine and pump there is an axial component of force present so solid shaft can deal better than hollow shaft...and in automobile only pure torsion is present and also hollow shaft have le...

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mohamed abdelkareem

• Feb 20th, 2012

In a biaxial stresses there are two stresses in two dimension say (x,y) and caused shape deformation , but in a triaxial stresses there are three stresses in three dimension say(x,y,z) and caused volumetric deformatio.

ahmedsaid2050

 Profile Answers by ahmedsaid2050 Questions by ahmedsaid2050

• Jan 26th, 2012

A biaxial state of stress is defined as a state of stress where one of the three principal stresses is equal to zero: 1 0 , 2 0 , 3 = 0 A triaxial state of stress is defined as a state ...

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rameez.ajmeri

 Profile Answers by rameez.ajmeri Questions by rameez.ajmeri

• Jan 13th, 2012

Hello sargkuna, I would like to correct your answer. In fact there are two reasons, the form factor of power generating alternator is 1.11 due to which the transmission voltage is made in multiples ...

sargkuna

• Jul 26th, 2011

The reason is some thing historical. In olden days when the electricity becomes popular, the people had a misconception that in the transmission line there would be a voltage loss of around 10%. So in...

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Editorial / Best Answer

Answered by: padmaja

• Oct 5th, 2006

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although four stroke engine is more frequently used 2STROKE engine is more effiecient because for every 2 strokes there is a power stroke.for same power generation 2STROKE ENGINE is compact

hrs7400

 Profile Answers by hrs7400 Questions by hrs7400

• Dec 19th, 2011

2 stock engine is more efficient than 4 strock, because Power generation for 2 strock required one strock of compression and one strock of discahrge, while for the same power a 4 strock engine require...

Pradeep sharma

• Nov 25th, 2011

4 stroke is more efficient due 2 its better milage, less wear & tear of parts, contain valves prevent frm leakage, deliver one power stroke in 4 cyle.

But in case of power, 2 stroke is better. it delivered 1 .8 times more power than 4 stroke.

Bt overall view favoured to 4 stroke engine.

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hrs7400

 Profile Answers by hrs7400 Questions by hrs7400

• Dec 19th, 2011

The capacity of a machine can be calculated by simply measuring the Output from a adesier Input in terms of %efficiency
Capacity =Output/input

rahul

• Dec 16th, 2011

Just multiply work done by machine into time taken.

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