Automobile Engineering interview questions and answers

          

Automobile Engineering interview questions and answers


Part 1   Part 2   Part 3   Part 4   Part 5   Part 6

Explain the reason that why big tyres are used in rear of vehicles.
What is kingpin offset? State some of its application.
Explain the basic difference between BS2 and BS3 engine.
What is an injector pressure in heavy vehicles? Why it is used?
During the drive torque, what will be the weight shift?
In a tractor, how the hydrostatic propulsion systems work?
Explain the reason that why the tyres are always black in colour. Is this phenomena related to the heat conduction?

Explain the reason that why big tyres are used in rear of vehicles.

Large tyres provide larger surface area touching the ground, thus providing the more pulling power. Basically tractors have larger rear tyres because tractors don’t have to operate at higher speeds, thus getting the same ground speed with larger tyres. Moreover gear ratios don’t have to be as high as b/c of the tyres.

What is kingpin offset? State some of its application.

The kingpin offset is the part, basically called as pivot used in the steering of the vehicles. This offset helps in rotating of the steering and thus it’s very useful in steering mechanism of the cars.
Applications: This is also used to measure scrub radius with the help of geometric parameters of wheel plane above and below ground level.
It provides directional stability to the vehicles when it i combined with the caster.

Explain the basic difference between BS2 and BS3 engine.

The basic difference of BS2 and BS3 engines is the presence of catalytic convertor. Catalytic convertor is present in BS3 engine which helps in reducing the formation of HC and CO. While in BS2 engine, no catalytic convertor is present which forms HC and CO. Thus in BS3 engine there is no emission of harmful CO and HC. The full form of BS is bharat stage, which is a standard of emission in India.

What is an injector pressure in heavy vehicles? Why it is used?

Injector pressure i s the pressure at which the fuel can be injected into the vehicle. In heavy vehicles, injector pressure is 220 kg/cm square. It is used to set up the standard fuel injection in the vehicles. With the help of injector pressure we can calculate the amount of fuel needed, through the following formula:
Est. Horsepower x B.S.F.C / No. of injectors x duty cycle = lb/hr per injector
cc = lb/hr x 10.5

During the drive torque, what will be the weight shift?

In case of cars the torque is applied to the rear wheels, thus limiting accelerator due to front wheel drive due to weight transfer. This drive is bolted to the chassis of the car. Modern manufacturers therefore design rear wheel drive to have similar handling to front wheel drive wherever possible via suspension tuning.

In a tractor, how the hydrostatic propulsion systems work?

This system is based on Pascal’s law. In a tractor the pressure is same, so the force given by the liquid to the surrounding is equal to the pressure X area. Thus, obeying the Pascal’s law hydrostatic propulsion system is designed, similarly small piston feels small force and the large piston feels larger area.

Explain the reason that why the tyres are always black in colour. Is this phenomena related to the heat conduction?

Tyres colour is black due to the proportion of carbon mixed in it during the vulcanization of the rubber, to make the tyre shear resistant. Without vulcanization tyres won't be able to bear the friction heat and stress of the road. Thus carbon is responsible for giving tyres the prominent black colour. Adding of carbon prevents tyres from rapidly deteriorating because when ozone combines with the ultraviolet light from the sun. It attacks the polymer of the tyre.

Part 1   Part 2   Part 3   Part 4   Part 5   Part 6



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Discussion Board
Automobile Engineering

God bless the writer more for his knowledge and understanding used in the course of this write up


Usman Edache 05-11-2017 02:21 AM

automobile engineer

I GOT SOME KNOWLEDGE FROM HERE THANK U SO MUCH.

wasim sayyed 02-16-2017 06:36 AM

automobile

it's a helpful topic,,,,,,,

ofp 01-8-2017 01:00 PM

good topics

thank u for this ...

bibhu 12-21-2016 12:27 PM

VE D.P.A pump timing

please help me on how to set a VE D.P.A pump timing with no timing marks provided by the specs

Andrea Cheya 09-7-2016 09:48 PM

automobile

Sir best book for automobile take in deeply knowledge


neeraj kandpal 08-1-2016 10:08 PM

a.e

It enhanced my 30 Year A.E knowledge01

Subra 06-13-2016 09:09 AM

AUTOMOBILE

Hi sir, These are very important for us i would like to thank u all for provide the knowledgable Ques&with Answers...Really more Useful sir

Surya Kumar K 05-12-2016 01:37 AM

nice

thanks sir for providing this knowledge

rakesh saini 03-26-2016 07:15 AM

AUTOMOBILE ENGINEERING

HOW TO DO SET THE ENGINE/FIP/CAM SHAFT TIMING WITH OUT TIMING MARK "

MOHAMED RAHAMATHULLA 01-4-2016 05:35 AM

nice

Superb questions n answers..... I have known more knowledge about A.E.... By this questions..... Tanq

m. Satish Kumar 09-30-2015 07:23 PM

mechanical engineer

i realy thanku . Bcoze this types of not available in books. I would like to connect with u & enhance my knowledge.

Pravin mahale 09-28-2015 11:37 PM

Maths And Physics

Precisely,this Is Splended.I,m Grateful To U All Because It Has Given Me The Tips On The Kind Of Questions Asks In Automobile Engg. My Pleasures And Gratitude Goes To U All.God Bless U All And Give U More Inspiration Thanks.

CHRISTIAN 08-27-2015 10:05 AM

automobile

I want to know about the basic quenstions that can be asked in an interview fo a facultu

abhishek saini 04-26-2015 08:46 AM

automobile interview questions

thank you sir for valuable answer it's really important question for interview point of view

pankaj kumar dhanvantari 03-27-2015 09:04 AM

automobile

very interesting question in automobile part ..please add other question in automobile section

Rakesh 11-30-2014 12:47 PM

ABOUT EMS ECU

WHAT ARE THE PROGRAMMS LOADED IN ECU. ???????

MANIKANTA BADIGER 09-16-2014 12:58 AM

automobile engineering

thanks for more information about AE.

dakarapu.dharan babu 08-5-2014 01:29 PM

automobile engineering

could you please explain what is the technical difference between JCB 3C AND 3D MODELS

shaik.abdul kalam azad 05-21-2014 03:34 AM

feedback

Thanks for providing good information.Please continue,,,,,,,,,,,,

Ashs Mol 01-12-2014 10:00 AM

Mechanical Engineering

Nice information thankyou

Satendra Kumar Saini 09-26-2013 11:56 AM

Thanks

Thank you v much for sharing valuable info.

prashant 09-26-2013 08:34 AM

Best basic knowlege

It is useful for student because it don't taught in college .thanks

Roshan lal saini 01-20-2013 12:07 PM

Nice study material

ITS AWESOME RESPECTEDS WHOSE ARE ORGANISE THIS OF ITS REALLY GOOD FOR FRESHERS
HEARTLY THANKS

KUNWAR LAKSHYA BUNDEL 01-13-2013 04:00 AM

 

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