Cetane number is measure of
lhVsu vad ekid gS
What is the advantage of using high octane number fuel in petrol car
isVªksy dkj eas mPp vkWDVsu vad okys baZ/u ds iz;ksx ls D;k ykHk gS
Which one of the following has zero cetane number
fuEu eas ls fdldk lhVsu vad 'kwU; gksrk gS
Thermodynamic processes in diesel cycle are
Mhty pØ eas Å"ekxfrd izØe gksrs gS
Generally which one of the following lubrication system is used in a car engine
izk;% ,d dkj batu eas fuEu eas ls dkSulh Lusgu iz.kkyh iz;qDr gksrh gS
What is the advantage of using 'Pressure Cap' on the radiator
jsfM;sVj ij ^nkc&Vksih@izs'kj dSi* iz;ksx djus dk D;k ykHk gS
Radiator tube are generally made of
jsfM;sVj ufydk,¡ lkekU;r% cuh gksrh gS
"The thermostat valve of engine cooling system of vehicle....
^^okgu dh batu 'khryu iz.kkyh dk rkiLFkk;h okYo-------
mijksDr fjDr LFkku gsrq lgh fodYi pqfu;s
Aluminium cylinder block engines require
,Y;qfefu;e flys.Mj CykWd batuks eas vko';drk gksrh gS
Firing order of six cylinder in line engine is
N% flys.Mj ,d js[kh; batu dk ngu Øe gS
In individual pump fuel injection system of diesel engine, what is the function of fuel feed pump
Mhty batu dh i`Fkd iEi bZa/ku vUr%{ksi.k iz.kkyh eas bZa/ku Hkj.k iEi dk D;k dk;Z gksrk gS
Which one of the following is correct sequence
fuEu eas ls lgh Øe dkSulk gS
In motor-cycles fitted with four stroke engines, .....mechanism is used to operate the valves
prq%LVªksd batuks okyh eksVj lkbfdykas eas okYo izpkyu gsrq-----;a=koyh dk iz;ksx fd;k tkrk gS
The water pump generally employed for cooling of engine of a vehicle is
okgu ds batu 'khryu ds fy, lkekU;r% dke eas yk;k tkus okyk iEi gksrk gS
By applying chock in a petrol engine, the engine gets
isVªksy batu eas pksd yxkus ij] batu dks feyrk gS
Which one of the following governing method is used in petrol engines
isVªksy batukas eas fuEu eas ls dkSulh vf/fu;a=.k fof/k iz;ksx dh tkrh gS
Select the correct option for functions of the deflector on piston of two stroke engines
I.To deflect the fresh charge towards top at the time of entrance
II.To force out the burnt gases towards exhaust port
III.To increase the strength of piston top
The options are as follows
f}LVªksd batukas ds fiLVu ij cus fo{ksid ds dk;ksZ gsrq lgh fodYi pqfu,
I.u;s izHkj.k dks izos'k ds le; Åij dh vksj fo{ksfir djuk
II.tyh gqbZ xSlks dks jspu }kj dh vksj /dsyuk
III.fiLVu ds Åijh Hkkx dh lkeF;Z c<+kuk
fodYi fuEukuqlkj gS
Which one of the following is not a function of piston rings
fuEu eas ls dkSulk dk;Z fiLVu fjaxks dk ugha gS
Select the correct option after considering the following statements
I.Fly wheel of four stroke engine is lighter as compared to that of two stroke engine of the same power.
II.Fly wheel of multi-cylinder engine is heavier as compared to that of single-cylinder engine of the same power.
The option are as follows
fuEu dFkukas ij fopkj dj lgh foYi pqfu,
I.leku 'kfDr ds f}&LVªksd batu dh rqyuk eas prq%LVªksd batu dk ÝykbZ Oghy gYdk gksrk gSA
II.leku 'kfDr ds ,dy flys.Mj batu dh rqyuk eas cgq &flysUMj batu dk ÝykbZ Oghy Hkkjh gksrk gS
fodYi fuEukuqlkj gS
In a four stroke engine, the speed of the engine is N r.p.m. The speed of the cam shaft will be
,d prq%LVªksd batu eas batu dh xfr N pØ izfr feuV gSA dSe 'kkÝV dh xfr gksxh
Which one of the following statements is false
fuEu eas ls dkSulk ,d dFku xyr gS
In which of the following type of engine, the inlet and exhaust valves are fitted in the cylinder head
fuEu eas ls fdl izdkj ds batu eas izos'k o fudkl okYokas dks flysUMj 'kh"kZ eas fQV fd;k gksrk gS\
One Ton of Refrigeration is approximately equal to
iz'khru dk ,d Vu yxHkx lerqY; gksrk gS
The comfort conditions in air-conditioning are
okrkuqdwyu eas lq[kh; voLFkk,¡ gksrh gS
Air is compressed by a double-stage compressor (with complete intercooling), from 1 bar pressure, 27°C temperature to 36 bar pressure. What should be the interstage pressure for the minimum work of the compressor
A Carnot cycle consists of
,d dkuksZV pØ cuk gksrk gS
The second law of thermodynamics defines
Å"ekxfrdh dk f}rh; fu;e ifjHkkf"kr djrk gS
The first type of perpetual motion machine is the one, which
izFke izdkj dh 'kk'or e'khu og e'khu gS tks
The value of Universal Gas constant is
lkoZ xSl fLFkjkad dk eku gS
For any reversible process, the change in entropy of the system and its surroundings is
fdlh izfrØE; izØe eas ra=k rFkk blds ifjos'k dh ,aVªksih eas ifjorZu gksrk gS
In a double-acting reciprocating pump, there are
,d f}&fØ;k izR;kxkeh iEi eas gksrs gS
In a centrifugal pump, Q = discharge, H = head, N = speed. Then the specific speed will be
,d vidsUnzh iEi dk fuLlj.k = Q 'kh"kZ = H, pky = N gS] rks fof'k"V pky gksxh
Bernoulli's theorem is based on the law of conservation of
cjukSyh सिद्धांत----------------laj{k.k fu;e ij vk/kfjr gSA
Which one of the following option is based on 'Pascal's Law
fuEu eas ls dkSulk fodYi ^ikLdy ds fu;e* ij vk/kfjr gS
Spring Index of a coil spring is
,d dq.Mfyr fLizax dk fLizax lwpdkad gS
Shock absorber in vehicles is used for
okgukas eas 'kkWd ,CtkscZj dk iz;ksx fd;k tkrk gS
When there is a reduction in the amplitude of vibrations over cycle of vibration, then the body is said to have
tc dEiukas ds vk;ke eas izR;sd dEiu pØ eas deh gksrh gks] rc fi.M ds dEiukas dks dgk tkrk gS
Which one of the following option is correct to describe the speed ratio of a simple gear train
Where :
N1 = Revolutions per minute of driving gear
N2 = Revolutions per minute of driven gear
T1 = Number of teeth on driving gear
T2 = Number of teeth on driven gear
,d ljy fx;j Vªsu dk osxkuqikr n'kkZus gsrq fuEu eas ls dkSulk fodYi lgh gS\
N1 = pkyd fx;j ds pØ izfr feuV
N2 = pkfyr fx;j ds pØ izfr feuV
T1 = pkyd fx;j ij nk¡rkas dh la[;k
T2 = pkfyr fx;j ij nk¡rkas dh la[;k
Which relation is incorrect for module of gear 'm'
fx;j ds ekWM~;wy 'm' ds fy, dkSulk lEcU/k xyr gSA
The relation between the pitch 'p' and pitch circle diameter 'D' of chain is given by
Where 'T' is the number of teeth
psu dh fip 'p' ,oa fip o`Ùk O;kl 'D' ds eè; laca/k fn;k tkrk gSA
tgk¡ 'T' nk¡rkas dh la[;k gSA
To transmit maximum power by a belt drive, it is necessary that. Maximum tension in the belt = ..........× centrifugal tension in the belt. What is the correct option for the bank space?
,d iV~Vk pkyu }kjk vf/kdre 'kfDRk ikjsf"kr djus gsrq ;g vko';d gS fd % iV~Vs ds vf/kdre ruko = ..........× iV~Vs eas midsUnzh rukoA fjDr LFkku ds fy;s lgh fodYi D;k gS\
The brake commonly used in motor cars is
Clutch is located between the transmission and the
ikjs"k.k o fdl ds eè; Dyp gksrk gS&
Telescopic shock Absorber consists of
In a tractor the springs provided for the rear wheels are
In automobiles the power is transmitted from gear box to differential through
vkWVkseksckbyksa esa fx;j ckWDl ls foHksnh dks 'kfDr dk izs"k.k fdlds ek/;e ls fd;k tkrk gS \
The power from the engine to the rear axle of an automobile is transmitted by means of
fdlh vkWVkseksckby ds batu ls fiNys /qkjs rd 'kfDr fdu lk/kuksa ls lapfjr gksrh gS\
.............follower is generally used in automobile engines.
vkWVkseksckby bZUtu esa lkekU;r;k QkWyksoj mi;ksx fd;k tkrk gS &