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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What is relative Humidity? Why it is used?

shaik samdani

• Sep 1st, 2015

Relative humidity means percentage of water content available in the atmospheric air. It is basically used where air-conditioning is required for example textiles industries, chemical industries, pharmaceutics companies &A/C halls etc.

P. Ramanarayanan

• Aug 19th, 2015

The relative humidity of an air-water mixture is defined as the ratio of the partial pressure of water vapor in the mixture to the equilibrium vapor pressure of water at a given temperature. It is measured using hygrometer

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List the best Welding options along with parameters like Power, Voltage, Gas flow for MIG Wielding

Sibin Lakshmanan

• Aug 20th, 2015

Mig Gun,Wire feeder,Gas Regulator,Hoses,Elecrtodes

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What is the Weight of MS and SS Square Tubes per Meter?

ellayne

• Jul 12th, 2015

Pyrotechnology I know has to do with fire, and its a branch on its, of which they deal whith deadly powder which make fire works

Jesse Smith

• Oct 5th, 2007

Pyrotechnology involves technology with fire. Such technology can be found in movie effects and stunts.

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What is the clearance between male and female screws

Muhammad ayaz zaib

• Jul 10th, 2015

The needed maximum clearance depends on the rotor diameter and is about 1 thousand of the diameter, max. So if the diameter of the rotor is 200 mm, the clearance would be only 0,2 mm,

vikas mittal

• Jul 9th, 2015

3 Micron

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How to recover the unbalancing of two wheeler handle?

Kingslayer

• Jul 8th, 2015

When you are unbalanced on a 2 wheeler, it means definitely you are tilting on a particular side and are about to fall. But when, you actually never fall from your 2 wheeler that easily. Why so..? Bec...

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Ajit kumar

• Jun 3rd, 2015

The most common use of Suspension in Automobile are:-

1. Di Dion tube
2. Solid axle
3. Trailing arm
Semi Independent: Torsion Beam suspension
Twist beam rear suspension
4. Double wishbone
5. Macpherson strut

Mallayya S M

• Oct 12th, 2012

Leaf spring
Coil spring
Shock absorbers

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what is cavitation? why it is occured and how it is occured ?

Vaibhav Jadhav

• May 15th, 2015

in flow system when the pressure of the fluid reaches below its vapor pressure, the pockets of bubble are form, this pockets of bubble when flows with the fluid and reached high pressure region,the fl...

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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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Why diesel is called as quality governed?

ravi

• Mar 29th, 2015

petrol - air fuel pre mixed and sent to engine. quality cannot be changed (rich or lean mix). By operating the throttle / accelerator the quantity of fuel is varied ( other than starting idling etc)....

sateesh

• Mar 18th, 2015

Basically petrol engines are quantity governing b coz , in this case fuel is mixed in the carburetor , so to change the speed we need to control the quantity of mixture that is going in the cylinder....

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A mass of 100kg is falling from a height of 1m and penetrates the sand to 1m. What is the resistance force of the sand?

Budi Joshi

• Mar 27th, 2015

Resistance Force=981N

Tarek

• Mar 3rd, 2015

Http://hyperphysics.phy-astr.gsu.edu/hbase/flobi.html
Please check this page.
it shows a reasonable answer.

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how I can to cooling the water of Distillation apparatus cooling system? in other words I want to refrigerate the water that circulate around distillation source and Condensation the vapor.this water come hot and I want cool it with utilize the heat of Furnace.

ravi

• Mar 29th, 2015

Use Vapour absorption refrigeration system. Where the heat of the furnace can be utilized to separate the refrigerant and the absorbent in the generator. Refrigerant can be used to condense the vapour.

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Which material is used for propeller shaft ?why?

mohamedeltawill

 Profile Answers by mohamedeltawill Questions by mohamedeltawill

• Mar 26th, 2015

For propeller shaft you need material with high torsional rigidity as well as material that can take a lot of fatigue . you can use alloy 303 or any low carbon steel with 10-18 % chromium and 5-8 % nickel.

bhanu

• Feb 4th, 2015

Steel used as material

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What is the Pneumatic pressure for Industrial application?

jhangeer khan kk

• Mar 21st, 2015

If we need the 5 to 10 bar pressure so we used pneumatic pressure and need top to 10 bar pressure then we ll use hydraulic pressure

manishpatel121978

 Profile Answers by manishpatel121978 Questions by manishpatel121978

• Aug 12th, 2009

Pnematic pressure means air pressure use to cylinder.

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How we can adjust turbine shaft with turbine casting ?

Alireza khazaei

• Mar 1st, 2015

By Add or remove Shims in back of Thrust bearing

ahmad

• Feb 5th, 2015

By using bearings

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Pradeep Ingale

• Feb 19th, 2015

Every liquid has a vapor pressure ( the pressure at which liquid evaporates). If the suction pressure falls below vapor pressure of liquid , Cavitation occurs. Which results into vacuum creation & bub...

sushil

• Jul 14th, 2014

NET POSITIVE SUCTION HEAD

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we are running a programe in jcl and it is routing to ITS department and going to printshop as a PCL to the wrong tray. Printshop also said if we can change it to a ps they can change the tray, but they can not change it because it is coming over as a PCL.

Ankit

• Feb 9th, 2015

Stress- measure of internal resisting force applied on body per unit area.

Strain- measure of deformation produced due to deformation load.

raghu

• Jan 2nd, 2015

Resist the applied force per unit area is known as stress (force per unit area i.e pressure)

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Why there is no differential in a train. What happens when a train takes a turn?

Kingshuk

• Feb 9th, 2015

Trains do not have differentials. but we all know they do take turn. this is achieved by CONING of wheel. since the centripetal force attracts the train to the centre of curvature, the outer wheels di...

Komal Ashu

• Nov 7th, 2012

To facilitate turning of the trains, a number of factors are taken into consideration. The trains never turn at a very sharp angle. The change in direction of the trains is facilitated by a gradually ...

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