Out of the following which action takes place in the clutch, when the clutch pedal is depressed
tc Dyp isMy nck;k tkrk gS rks Dyp eas fuEu eas ls dkSulh fØ;k ?kfVr gksrh gS
Which one of the following clutch is generally used in motor cycles
eksVj lkbfdykas eas izk;% fuEu eas ls dkSulk Dyp iz;qDr gksrk gS
With which type of suspension system, the space available in engine compartment is maximum
fdl izdkj dh lLias'ku iz.kkyh ds lkFk batu d{k eas miyC/ LFkku vf/kdre gksrk gS\
The vehicle ride will be comfortable, if
okgu ;k=k vkjkenk;d gksxh] ;fn
Which one of the following is an intensive property of a thermodynamic system
fuEu eas ls dkSulk ,d Å"ekxfrd ra=k dk ek=k fujis{k xq.k/keZ gS
Two shafts A and B are made of same material. Diameter of shaft B is half the diameter of shaft A. Torsional strength of shaft A, as compared to shaft B, will be
nks 'kkÝV A o B leku inkFkZ ls fufeZr gSA 'kkÝV B dk O;kl 'kkÝV A ds O;kl dk vk/k gSA 'kkÝV B dh rqyuk eas 'kkÝV A dh ,aM lkeF;Z gksxh
What is the main advantage of inverted tooth chain
mYVs nk¡r okyh psu dk eq[; ykHk D;k gS\
"When a vehicle is negotiating a turn, inside the differential (with two planet gears)________" Select the correct option for the blank space above
^^tc ,d okgu fdlh eksM+ ij xfr djrk gS rks fMizasQf'k;y (nks IysusV&fx;jkas okys) ds vanj------------------A
mijksDr fjDr LFkku gsrq lgh fodYi pqfu,
"Tata Nano" car is a
^^VkVk uSuks* dkj gS
Which of the rear axle is used in heavy vehicles
Hkkjh okgukas eas fdl izdkj dk fiNyk /qkjk iz;ksx fd;k tkrk gS
In which of the following vehicle, transfer-case is a must
fuEu eas ls fdl okgu eas VªkaliQj dsl gksuk vfuok;Z gS
When both the rear wheels of a rear wheel drive vehicle are jacked up and gears are in neutral position, turning one rear wheel forward will cause the other rear wheel to
tc ,d i'p ifg;k pkyu okgu ds fiNys nksuks ifg;kas dks tSd }kjk mBk;k x;k gks rFkk fx;j U;wVªy voLFkk eas gks rks fiNys ,d ifg, dks vxz fn'kk eas ?kqekus ij fiNyk nwljk ifg;k
What is the correct sequence of power transmission in front engine (transverse mounted) front wheel drive vehicle
vxz batu (vkM+k LFkkfir) vxz ifg;k pkyu okgu eas 'kfDr ikjs"k.k dk lgh Øe D;k gS\
In which one of the following smoke meter the sample of emission gas is passed through a tube, which has a light source at one end photocells at the other end
fuEu eas ls fdl /q¡kvk ekfi= eas mRltZu xSl ds uewus dks ,d ,slh V~;wc eas ls xqtkjk tkrk gS] ftlds ,d fljs ij izdk'k L=ksr o nwljs fljs ij QksVks lsy yxs gksrs gS
Match List-A with List-B and select the correct option
List-A List-B
(Measurement) (Method)
A. Smoke 1. Air box
B. Exhaust Emission 2. Burette
C. Fuel consumption 3. Bosch smoke meter
D. Air consumption 4. Spectroscopic analysis
options are as follows
Presently the Emission Standard in force for 4-wheel petrol vehicles in Rajasthan are
orZeku eas 4-ifg;k isVªksy okgukas ds fy, jktLFkku eas ykxw mRltZu ekud gS
Which of the following are the reasons of very black smoke in diesel engine
I. Using fuel of low cetane number
II. Overloading of the engine
III. Fuel-Air mixture being rich
The options are as follows
fuEu eas ls dkSuls Mhty batu eas vR;f/d dkys /q¡k, ds dkj.k gS
Indicated mean effective pressure is
lwfpr eè; izHkkoh nkc gksrk gS
1200 C.C. 4-cylinder engine has
1200 C.C, 4 flys.Mj batu eas gksrk gS
Unit of brake specific fuel consumption is
czsd fof'k"V batu [kir dh bdkbZ gS
Power developed inside the engine cylinders is called
batu ds flys.Mjkas eas mRiUu 'kfDr dgykrh gS
Select the correct option for increasing order of the following efficiencies of an engine
I. Brake thermal efficiency
II. Air standard efficiency
III. Indicated thermal efficiency
The options are as follows
,d batu dh fuEu n{krkvkas ds c<+rs gq, Øe gsrq lgh fodYi pqfu,
Which one of the following is the correct sequence for the air standard efficiencies of different gas power cycles at a definite compression ratio
,d fuf'pr lEihMu vuqikr ij fofHkUu xSl 'kfDr pØksa dh ok;qekud n{krkvkas gsrq fuEu eas ls lgh Øe dkSulk gS
If the bore diameter, stroke length and compression ratio of a single cylinder engine are 7cm, 8cm and 8 respectively, what will be it's clearance volume?
;fn ,d ,dy flys.Mj batu dk cksj O;kl] LVªksd yEckbZ ,oa lEihMu vuqikr Øe'k% 7 lseh] 8 lseh ,oa 8 gks] rks bldk vodk'k vk;ru D;k gksxk\
For which of the following engines a Prone brake dynamometer is generally used to measure the brake power
fuEu batukas eas ls fdldh czsd 'kfDr ekius ds fy, izk;% izkWuh czsd 'kfDrekfi= iz;ksx fd;k tkrk gS
What is varied to keep the arm horizontal after initial adjustment, while measuring the brake power of engine by Proney Brake dynaomemeter
izkWuh cazsd 'kfDrekfi= }kjk batu dh czsd 'kfDr Kkr djrs le; izkjafHkd leatu ds i'pkr~] Hkqtk dks {kSfrt j[kus ds fy, D;k ifjofrZr fd;k tkrk gS
The parameter to be kept constant during Morse test is
ekslZ ijh{k.k ds nkSjku fLFkj j[kk tkus okyk izkpy gS
Most suitable combustion chamber type for multi fuel capability is
cgq bZa/u {kerk ds fy, lokZf/kd mi;qDr ngu d{k dk izdkj gS
In open combustion chamber of a diesel engine
Mhtu batu ds [kqyk ngu d{k eS
Consider the following statements regarding the C.I engine combustion chambers
I.only partial combustion of fuel takes place in pre combustion chambers.
II.In swirl combustion chamber, swirl is generated by directing the flow of air during its entry to the cylinder
III.In swirl combustion chamber the swirl is proportional to the engine speed.
Select the correct option for True statements from the above
C.I batu ngu d{kks ds laca/ eas fuEu dFkukas ij fopkj dhft,
I. iwoZ ngu d{k eas bZa/u dk dsoy vkaf'kd ngu gh gksrk gS
II. lqHkaoj&ngu d{k eas flys.Mj eas izos'k ds le; ok;q ds izokg dks funsZf'kr dj Hkaoj mRiUu fd;k tkrk gS
III. laHkaoj&ngu d{k eas Hkaoj batu pky ds lekuqikrh gksrk gS
mijksDr eas ls lR; dFkukas gsrq lgh fodYi pqfu;s
Which one of the following statement is the most appropriate in reference to the "Surface-Volume Ratio" of S.I. Engine combustion chambers?
The basic requirement of a good combustion chamber is
,d vPNs ngu d{k dh eq[; vko';drk gS
How many power strokes per second shall take place in a four stroke petrol engine rotating at 3000 rpm
3000 rpm ij ?kw.kZu'khy ,d prq%LVªksd isVªksy batu eas izfr lsd.M fdrus 'kfDr LVªksd gksaxs
The primary winding of ignition coil consist of
izToyu dq.Myh dh izkFkfed okbafMax eas gksrh gS
Consider the following statements
I. Heat dissipation path of hard spark plug is longer as compared to that of soft spark plug
II. Hard spark plug is used in cold operating conditions
III. Soft spark plug is used in high speed engines
Which of the above statements are correct?
fuEu dFkukas ij fopkj dhft,
I. dBksj LikdZ Iyx dk Å"ek fo{ksi ekxZ e`nq LikdZ Iyx dh rqyuk eas yEck gskrk gSA
II.dBksj LikdZ Iyx dks 'khry ifjpkyu ifjfLFkfr;kas eas iz;ksx fd;k tkrk gSA
III. e`nq LikdZ Iyx dks mPp pky ds batukas eas iz;ksx fd;k tkrk gS
mijksDr eas ls dkSulk dFku lgh gS
The components of primary circuit of battery ignition system are
cSVjh izToyu ra=k ds izkFkfed izToyu ifjiFk ds vo;o gS
The components of secondary ignition circuit of battery ignition system are
cSVjh iztoyu ra= ds f}rh; izToyu ifjiFk ds vo;o gS
For same compression ratio
leku lEihMu vuqikr ds fy,
Which one of the following reason is not the reason of pre ignition in spark ignition engines
fuEu eas ls dkSulk dkj.k LikdZ izToyu batuuks eas iwoZ izToyu dk dkj.k ugha gS
In case petrol engine at starting
isVªksy batu ds fy, 'kq:vkr ds le;
During the combustion process in compression ignition engines, increasing which of the following parameter would increase the delay period
lEihM+u izToyu batukas eas ngu izfØ;k ds nkSjku fuEu eas ls fdl izkpy dks c<+kus ls foyEc dky c<+sxk \
By which one of the following action, diesel knock can not be prevented
fuEu eas ls fdl fØ;k }kjk Mhty viLQksVu dks ugh jksdk tk ldrk
The correct sequence of combustion stages in C.I engine is
C.I. batu eas ngu pj.kkas dk lgh Øe gS
For a given engine setting and fuel, what is meant by Highest Useful Compression Ratio
fdlh fuf'pr batu leatu ,oa bZa/u gsrq mPpre mi;ksxh lEihM+u vuqikr ls D;k rkRi;Z gS\
In a spark ignition engine, the increase of compression ratio will
,d LikdZ izToyu baatu eas] lEihMu vuqikr c<+kus ls
Pressure in the fuel rail of CRDI diesel engine is approximately equal to
CRDI Mhty batu dh bZa/u jsy eas nkc yxHkx gksrk gS
In MPFI system, the fuel is injected into the
MPFI iz.kkyh eas] bZa/u vUr%{ksi fd;k tkrk gS
Which one of the following is not a part of MPFI petrol engine
fuEu eas ls dkSulk MPFI isVªksy batu dk Hkkx ugha gS
Octane number of iso octane is
vkblks vkWDVsu dk vkWDVsu vad gS