Mechanical Engineering Interview Questions

Relative humidity is ratio of mass of vapors in a given volume of air to the mass of vapors in the same volume at saturated point. With increase or decrease of % humidity or degree of saturation the relative humidity will be effected.

Relative humidity is the ratio of partial vapor pressure of air to the partial vapor pressure of air at saturation temperature.

DTSi is the technology only available in BAJAJ automobiles.
DTSi means Digital Twin Spark ignition.
This is better technology to get more efficiency in motor bikes and also get good consumption of fuel.

DTS-i means digital twin spark ignition.basically,this technology introduces usage of two spark plugs which are having approx. 90 degree angle which ensures complete fuel combustion as well as better ...

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 ...

No there is no such device. Outer wheel, while taking a turn must travel a larger distance comparatively to the inner one. This is accomplished by providing the greater dia on outer side of both the w...

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

Steel have a more elasticity then any other material

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.

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.

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.

Because the elasticity regains its shape and size.

Leaf spring
Coil spring
Shock absorbers

Leaf spring , coil spring , torsional bar and air suspension

Yes its used in material or any food packaging because its have a property of less corrosive and light weight .

It is by rolling the aluminium in between the rollers so as to obtain thin sheets of Al

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.

how to use gear box in compressor

Consider side view of any object. In the case of 1st angle projection left side view is drawn in right side & right side view is drawn on left. While considering 3rd angle projection Views are drawn in same side..left view in left and right in right

in first angle projection object is placed in b/w plane and viewer .
in thrived angle projection plane is positioned in b/w viewer and object.

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

As integral part of clutch it is connected with flywheel when the wheel is to be rotated. It is connected by the force which is exerted by pressure plate. It rotates because of high friction between c...

Disc Plate and Clutch is joint to engine. It helps to start the engine and also to disassemble off the engine.

Main gear is known as fixed gear.

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.

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.

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

Digital Twin Spark Ignition
This is used to get better combustion in combustion chamber.Double spark plug is used to obtain better combustion of fuel in cylinder head. It provide better efficiency and economical in fuel consumption

digital twin spark ignition engine which is used for better combustion.In which two spark plugs work at a time.one is used for starting the engine and the other used for initiating combustion.

It is due heating effect of evaporation.

the heat transfer is very quick in mud pot when we compared to other material ...that's the reason y water get cooled

First of all we have to calculate the potential energy of mass(100kg) just when it is going to fall. As we know that energy cannot be created nor destroyed, so, only one forms of energy changes to oth...

No, the above answer is partially correct. Look, Just before reaching the ground, the velocity of the body is as calculated above (1.4 m/s). Once it start penetrating it into the ground, it will have ...

dear friend, first of all you have to think that in which field you have more interest. A field in which you have much interest, definitely you will do better there. In my view, pipe inspection (quali...