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Fluid Mechanics
What happens when water flowing through pipe is suddenly cut?
kiranaimhigh
- Jun 30th, 2011
If a pipe is of 1000 Mts in length and water is flowing through it..when the pipe is not cut..water will flow through out the 1000 Mts.. but when is it cut at around 500 Mts, the resistance offered to...
mohsinali
- Feb 14th, 2010
When water flows from pipe it does have constrained motion & when supply is being cut suddenly, water particle tends to continue its motion but it doesn't so. Therefore the pressure wave is been g...
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Bearings and Rivets
What are different types of bearings? What are different types of rivets?
Faheem Zaman
- May 14th, 2011
Journal and anti friction bearing r the? two general type of bearing.journal bearing operates with sliding contact ,where as anti friction bearing operates under predominantly rolling contact.and there r two types of rivet joints ,these r tabular rivets and blind rivets.
Nidhin Chandran
- May 12th, 2011
you people have answered to the question "what are the different types of riveted joints?"But here the answer is sought for the different types of rivets which are as follows(they are from w...
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Power Transmission
What alternatives can be used in automobile instead of differentials for power transmission?
neeraj580
- Aug 26th, 2010
Differential is used because while turning the velocity of inner and outer wheel are differnt so if we do not use differntial skidding can take place, alternative for differntial is to power just one of the wheel in the axle.
S.KALAIYARASAN
- Apr 21st, 2009
Generally the engine power transmitted to the differential through propeller shaft. Then the differential transmit the power to the rear wheels.Instead of that, we can go for hydraulic drive. That is ...
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Weight and Mass
Differentiate Weight and Mass
arun govind neelan
- Dec 24th, 2009
Mass is used to measure the quantity. Unit is kgWeight is a force = mass * 9.81
ronit_hansum
- Feb 16th, 2009
Mass is a fixed quantity. It remains the same anywhere on earth or moon. But weight is the force with which earth attracts everybody. Weight depends on the position of body on the surface or earth. ...
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Kinematic Viscosity and Dynamic Viscosity
Difference between kinematic viscosity and dynamic viscosity and discuss the units in S.I and C.G.S system.
sahoo_nda
- Jul 18th, 2009
Dynamic viscosity is a measure of a fluid's resistance to shear flow. Kinematic viscosity is a ratio of the dynamic viscosity and density of a fluid,Kinematic is related to the cross section of ...
anuragdhupiya
- Mar 15th, 2009
Kinematic viscocity is the ratio of dynamic viscocity?to density of the fluid.
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VVTi
What VVTi written on new cars of Toyota stands for?
Chandimal
- Jan 8th, 2010
VVTi stands for Variable Valve Timing with Intelligence. Its a system which?improves?performance and efficiency of the engine. Mostly fitted with Toyota's.
sharu46
- Dec 30th, 2009
VVTi : Variable Valve Timing with Inteligence. It is the advanced version of the VVT engine. It changes the cam shaft position by using oil pressure. It is simmilar to CVVT in Hyundai.
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Lathe
How a lathe can be specified?
Gambit
- Sep 11th, 2009
Lathe can be specified in no. of ways:* Swing over bed (max. dia. of workpiece over the bed)* Swing over carriage* Distance between the headstock and tailstock* Bed height and Bed width* Shipping weight of lathe* Max. spindle speed etc.
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Jokey Pump
What is the function of jokey pump?
kit_inton
- Jun 19th, 2011
The? function of jokey pump is to maintain the pressure in pipe line,?pressure switch set at hi/lo?to start the jokey?pump motor, in case the pressure drop that jokey pump can't build up the pressure, then the main pump automatically start.
vasujoshi123
- Feb 11th, 2009
Jockey pump is working to keep fire hydrant system in pressurised condition always.If any pressure decreases in the system, automatically hydrant pump starts immediately to cope up the required pressure or supplying the required water to the required area.
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Boiler Feed Pumps
Why are the stages being provided in Boiler Feed Pump?
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
- 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 a Black Box in an Airplane ?
Saurabh Lalwani
- Jun 9th, 2011
It is basically a storage of some recorded conversations and radio communications which is used for accident investigations, as well as for analysing air safety issues, material degradation and aircraft performance.
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Automobile Differential
How does automobile differential work?
Vatsal Naik
- Jun 4th, 2011
A vehicle's wheels rotate at different speeds, mainly when turning corners. The differential is designed to drive a pair of wheels while allowing them to rotate at different speeds.without diffe...
ajmeri.morvi
- May 20th, 2011
actually it will better understood by animation or actual model?in?which?driving shaft torque/power are transmitted to driven shaft (wheel shaft) (note:both wheel have different shaft it has no dir...
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What are anti friction bearing ?what is different between ball bearing and roller bearing?
ajmeri.morvi
- May 19th, 2011
a bearing which have line or point contact between two individual rotating case (named inner case and outer case) that's why lower the friction generate so it is called the anti friction bearing.ball ...
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Si/Ci Engine
Why we do not use same technology to start both si/ci engine
ansi9164
- Aug 23rd, 2010
Self ignition temp of petrol in higher then diesel so it requires much pressure for self ignition as compared to diesel, due to this reason CI is not
favorable in case of petrol engine.rakesh_ms
- Aug 20th, 2010
The properties of both these fuels i.e., gasoline and diesel are different, Gasoline is less flamable than diesel.
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Bearing Size
How to find the beraing number or bearing size?
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How vehicle accelerator works
How is speed of any vehicle is increased by pressing the accelerator and decrease by relesing ?
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2 Wheeler Reverse Gear
Four wheelers are provided reverse gear whereas two wheeler are not provided, Why?
Pradeep Manickam
- Mar 27th, 2011
Its because two wheeler can be easily moved by a force whereas car can not be easily moved by our force.hence a reverse gear is required
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Bicycle Reverse Pedal
Why bicycle does not go backward after reversing the pedal?
abhi11092451
- Feb 28th, 2011
when we rotate the paddle of a bicycle in the forward direction ,the chain moves the axle which eventually moves the back wheel.but when it is rotated backward the chain does move while the axle does ...
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Human Body
When a man falls in a sea the human body gets sink in water, after the the man consume much water and die, the body floats in water surface. Why the body sunk? and Why the body floats at last?
ao103
- Jan 26th, 2011
As bacteria start to work and decompose the bodies internal tissue - gas builds up which reduces overall denisty of the body - so the body floats. If you got proper swimming lessons, the body actual...
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Toyota Vigo D4D Technology
What is D4D Technology used in Toyota Vigo?
dattamani
- Jan 23rd, 2011
D-4D is widely recognised as one of the most advanced diesel technologies on the market today. Diesel engines relied on relatively simple technology with a low-pressure mechanical injector delivering...
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