100 new questions general september 2014 kolkata 1
TRANSCRIPT
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GENERAL SEPTEMBER 2014
1) If centrifugal fan used in seriesa) Flow double (true if fans r parallel)b) Flow 4 timesc) Static pr. Doubled) Static pr. 4 times
2) Used L. presence in F.a) !a " p " mgb) !a " p " mg " #nc) !a " p " #nd) !a" p" s" #n
$) Steel and aluminium weldinga) %I&b) 'I&c) plosion weldingd) *
4) Flas+ point mention in IS ,21- 21a) D'/b) D'0c) '/d) '0
) 3+ic+ compressor ow c+anges wit+ pressurea) eciprocatingb) Lobec) !entrifugald) Screw
5) 6ow pour point is measureda) 78 gra9it8b) 5 cc or standard 9enture at speci:c tempc) *d) *
-) 68draulic oil w+en +ot t+in" w+en cold t+ic; as 9iscosit8 indea) 2b) 4c) 5d) ,
,) 'ore t+an 1 cr8stalline structurea) Isotropicb) Isentropicc) /llotroped) n?1 " p?1b) >n?1 " p@1c) >n@1 " p?1d) >n@1 " p@1
1) Low carbon steela) !8nanidingb)
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d) Induction +ardening
11) %elemotor spring functiona) Fail safeb) %o bring am in mids+ip postionc) *d) *
12) eciprocating compressor ;noc;ing wit+ rpm
a) *b) *c) *d) /ll of t+e abo9e
1$) %o reduce al;aline in boiler watera) A+osp+ateb) 68droidec) Sulp+ated) *
14) udder bearing materiala) 7rassb) !opperc) Steeld) &rap+ite
1) &ra9it8 disc materiala) ubberb) Stainless steelc) *d) *
15)
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c) Aower consumption mored) Unloader malfunction
22) During turning t+e s+ip " torue on t+e rudder w+ile mo9ing forward is comparedto mo9ing stern will be
a) 'oreb) Lessc) Samed)
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$1) 3+en steering power fails. mergenc8 Steering come into action in +ow man8seconds
a) $ secb) 4 secc) *d) *
$2) Steering gear lower and upper bearinga) &rap+ite
b) Steelc) !opperd) 7rass
$$) Kapour absorbent materiala) Lit+ium bromideb) 7romidec) Lit+iumd) Silicon
$4) 6elm angle rudder torue will 9ar8
a) Increaseb) Decreasec) Does not depend on +elm angled) *
$) /ir cooler deteriotion depends upona) Inlet and outlet temp. of airb) Inlet and outlet temp of sea waterc) Sea water temp. decreased)
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41) In double pr. 7oiler primar8 drum pr. 'ore secondar8 drum pr.a) Lessb) 6ig+erc) Samed) %wice
42) In 7oiler water tube if lea;age ta;es place t+ena) DiNcult to maintain actual boiler le9el
b) !+loride le9el diNcult to maintainc) *d) /ll of t+e abo9e
4$) /s per SL/S regulation L
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a) Icing of %Kb) 'oisture refrigerant oil formation of acidic corrosion wit+ copperc) Sludge formationd)
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b) O!3 pre+eating " auiliar8 boiler startsc) *d) *
52) In puri:er interface mo9ing outwardsa) Densit8 increasesb) Kiscosit8 decreasesc) %emp. increasesd)
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c) Full8 spaded rudderd) *
-$) 3+at compound is formed w+en austenite is cooleda) Ferrite and pearliteb) !ementite and iron carbidec) *d) *
-4) ngine room 9entilation fan pump isa) adialb) /ialc) %angentiald) *
-) 3+ic+ additi9e added in L. to pre9ent cold corrosiona) eser9e al;alineb) Dispersantc) *d) *
-5) %o pre9ent electric s+oc; during welding ('!R)a) Dr8 clot+b) First aid euipmentc) Safet8 s+oesd)
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,4) During !3 I& s8stem run continuousl8
,) Insert one pipe into anot+er b8 epansion of pipe of same diameterswagging
,5) Sub #ero coolingbrine
,-) 3indbo :re for auiliar8 boiler +ow to etinguis+a) b8 :ed etinguis+ing pro9ided b8 manufacturerb) b8 closing fuel and air 9al9esc) b8 stopping boiler FD fand) all of t+e abo9e
,,) 3+ic+ fan can +andle t+e dirt8 or dust aira) adialb) Aropellerc) *d) *
,=) In w+ic+ condition t+e production of fres+ water will decreasesa) 6eat ec+anger fouled
b) %emp. of sea water increasesc) %emp. of sea water decreasesd)
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d) Aartiall8
=-) 'etals in liuid forma) 'ercur8b) Indiumc) *d) *
=,) If pump alignment is wrong
a) 7earing o9er+eated and damageb) Disc+arge pr. Increasesc) Disc+arge pr. Decreasesd)