DIESEL CARS VS PETROL CARS : WHICH ONE YOU SHOULD BUY? WE HAVE THE ANSWER !

Should you buy a petrol car or diesel car?

This is probably the first question that comes to mind when you think about buying a car.
The question is simple but the answer is not. In this article we are going to share pros and cons of a Diesel Engine and Petrol Engine.
Usually, Diesel Engine cars will run on Diesel or Bio-diesel only. The Petrol Engine car can run on petrol and can run on CNG when a suitable CNG kit is fitted on that engine. CNG kits are not available for Diesel Engine cars as Petrol and Diesel engine have some fundamental differences which make diesel engines not-suitable for CNG. Lets see these differences in detail.

Petrol / Gasoline Engine Car :

✓ Petrol Engine cars are less noisy as compared to the Diesel Engine cars of similar type.
✓ Petrol Engine cars give less fuel mileage (miles per gallon / KM per liter) when compared to diesel engine cars of similar type.
✓ Petrol engine cars have better acceleration and top speed compared to Diesel Engine cars.
✓ Petrol Engine cars have lower torque at lower engine speed when compared to a diesel engine cars. This means that a petrol car will face more difficulty climbing uphill when compared to a Diesel engine car.
✓ Petrol Engine cars are cheaper to maintain and initial cost is also cheaper.
✓ Petrol Engine is more efficient at higher speeds. This means it gives a better mileage on highway /freeway driving compared to city-driving mileage.
✓ Petrol Engine can be run on CNG by fitting a CNG kit to the petrol Engine of the car.
✓ It is more economical to buy a petrol engine car if you travel only a few miles a day, this is because the initial cost of petrol engine car is low and maintenance cost is low.

Diesel Engine Car :

✓ Diesel Engines cars are noisy when compared to the similar petrol engine cars.
✓Diesel Engines cars are more fuel efficient compared to the petrol engine cars. 
✓Diesel Engines deliver more miles per gallon / more KM per liter of Diesel when compared to the petrol engine cars of similar type.
✓Diesel Engine cars have low peak power and acceleration compared to similar capacity petrol engine car.
✓Diesel Engine cars have higher torque at lower engine speed when compared to a petrol engine cars. This means that a diesel engine car can carry heavy loads uphill more easily as compared to a petrol engine car. So if you drive in a hilly terrain, you will find diesel car better compared to a petrol car.
✓Diesel Engines usually have higher maintenance cost when compared to petrol engines.
✓Diesel Engine cars are more fuel efficient at low engine speeds as compared to petrol engine cars. This means diesel engine car will give better fuel efficiency in city-driving conditions as compared to the petrol engine cars. 
✓ Diesel Engines can not run on CNG directly by fitting a CNG kit. This is because petrol engines have spark plug and they have compression ratios which suit the CNG fuel, but the diesel engines work on compression ignition without use of spark plug and  have much higher compression ratio than what is suited for CNG. Although there is some research going on to use CNG in diesel engine is some different way, but that technology is still in labs and will take some time to become feasible and available in passenger cars.
✓ It is more economical to buy a Diesel engine cars if you travel more than 20 miles a day or so because the high initial cost and high maintenance cost is offset by the low running cost of  diesel engine car.

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Final Verdict :


Diesel has its major advantage of low fuel cost(now a days the difference between cost of petrol and diesel per liter is not much) and better mileage but when it comes to service and maintenance it will cost you more than petrol. This leads to a very logical answer –  Don’t just buy a car considering its great mileage and cheaper fuel price; buy a car after calculating the overall running cost and the tenure that you would want to keep it for. If you want to keep a car for long and drive more than 80-100km a day, diesel can be a valid option. Otherwise, if your running is quite less and you don’t prefer keeping a car for more than 3-4 years, go for petrol.

DIFFERENCE BETWEEN WELDING AND BRAZING EXPLAINED !!

Welding and brazing are the metal joining process.Type of joining process to be applied for joining two parts depends on many factors.

WELDING :
>Welding is a process in which both the participating metals are metaled and re solidified to complete as one metal. Proper melting of mating parts is a basic criteria to result a sound weld.
BRAZING :
>In case of Brazing both the participating metals are not melted but a third metal of lower melting point is used to be filled in between the two. The solidification of this third metal results the joining. 

>The filler metal is drawn into the gap between the closely fitted surfaces of the joint by capillary action.

>The design of the joint should incorporate a minimum gap into which the braze filler metal will be drawn.

Comparison between welding and brazing :

Difference between manufacturing and production

Difference between manufacturing and production

Manufacturing and Production, are the two terms related to conversion of raw materials into finished products. But, Have you ever wondered, what makes them different. Manufacturing is the process of transforming raw materials into ready goods, with the help of machinery. On the other hand, production alludes to the processes or methods, that converts inputs like raw material or semi finished goods, to make finished product or services, which may or may not use machinery.

Definition of manufacturing

Manufacturing is a process of producing something useful through raw materials with the help of machinery or by hands in factories. The term manufacturing is used in the industrial sector where the input is transformed into the output on a large scale. The input can be in the form of raw material, components, and parts.

The most important feature of manufacturing is the man-machine setup. The product manufactured can either be directly sold to the final consumers or other manufacturing entities to produce other items like equipment, appliances, aircraft, household, etc.

Defination of Production

The activity of transforming both material and non-material inputs into the output that create utility is known as Production. The transformation includes conversion of raw materials into work in progress and works in progress into finished goods ready for sale. Here, the material input includes raw material, components, partly finished goods, etc. and non-material goods include ideas, information, skill, art, talent, etc.

The production of goods and services employs manpower and sometimes machines. The output generated should be used for consumption, or it must possess a value so that it can be sold to the consumer.

In economics, the production of goods and services is done to satisfy human wants. There are five factors of production that are used in the activity; they are land, labor, capital and entrepreneur. The participation and coordination of all these factors can lead to a successful production.