question bank for con quiz 2014 (1)

7/21/2019 Question Bank for Con Quiz 2014 (1)

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QUESTION BANK for CON QUIZ 2014

1* 1 The VERY FIRST crack to likely to happen in any cement or concrete component in any structure

A Structural Crack B Shrinkage Crack C Corrosion Crack D Creep Crac

*** *** *** *** ***1*2 When COTI!" type C#RI!" CO$%O#!&S are applie' on concrete mem(ers) the curin mechanism

A NEW water is SUPPPLIED ( Release ! "ro# the Curing Co#poun Coating $il# into theconcrete %o&

B 'he RI)INAL water ae uring concrete #i*ing is PRESER+ED %& the I#per#ea%leCuring Co#poun coating ,l# #e#%rane which pre-ents e-aporation o" #oisture "ro#insie the concrete

C 'he curing co#poun coating ,l# ser-es as a SACRI$ICIAL la&er e*hausting itsel" %&e-aporation %ut pre-ents e-aporation o" original #oisture insie the concrete

D 'he ,l# "or#e aroun the concrete %& coating the curing co#poun ABSRBS thenatural #oisture a-aila%le in at#ospheric hu#iit& an supplies that e*ternal #oistureinto the concrete

*** *** *** *** **1* + mon the ,ollo-in ,our types o, Coarse reates . C /) -hich -ill (e the (est suite' ,or makin a 'ense

stron oo' 0uality concrete

A )ap . )raeCA

B Well / . )raeCA

C Uni"or#l& . )rae CA

D All t&pes o" grain si0e graing o" CA will #ake the sa#e 1ualit& o" concrete ( i2e2 !concrete 1ualit& oes not epen on graing o" CA

*** *** *** *** ***1* The 'eposition o, most o, the coarse areates to the (ottom o, ,reshly lai' concrete layer I!STE&

remainin throuhout the 3ertical thickness is calle'

A Plastic Shrinkage B Bleeing C Cra0ing D Segregatio

*** *** *** *** **1* 4 The mi5ture o, cement an' ,ine areates is calle' as $ORTR6 (ut the same mi5ture o, Cement 7 F -hen

mi5e' also -ith Coarse reates) then the other name o, the CE$ 8 F mi5 is calle' as 9

A 3ortar B 3atri* C Concrete D 3etri*

*** *** *** *** ***1* : The common name ,or cement su(stitutes like Fly sh) Silica Fume) Rice ;usk sh)


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*** *** *** *** ***1* 12 ERO Slump concrete is use' ,or

A Sel" Co#pacting Concrete B E*ternall& +i%rate ConcreteC Roller Co#pacte Concrete D Internall& +i%rate Concrete

*** *** *** *** ***1* 1+ Choose the O&& One O#T

A SlagCe#ent

B Sulphate ResistantCe#ent

C $erroce#ent

D PC

1* 1 Choose the O&& One OutA Slu#p Cone

'estB Co#paction $actor

'estC $low 'a%le 'est D 8 Ring 'est

*** *** *** *** ***1* 14 Choose the O&& One OutA Segregation B Spalling C Bleeing D Slu#p Los

*** *** *** *** ***1*1:

For oo' 0uality an' accurate controllin) the pre,erre' metho' o, measurin o, 0uantities o, ra- materials ,concrete makin is

A +olu#etric Batching C Both are e1uall& goo an accurate practices

B Weigh Batching D Concrete 9ualit& oes not epen on 1uantities o" raw#aterials at all

*** *** *** *** ***1*1= C stan's ,orA Accelerate Aerate Concrete B Accelerate Aerate CuringC Autocla-e Aerate Concrete D Autocla-e As%estos Ce#ent

*** *** *** *** ***1*1? Collecti3e name ,or the compoun's ,orme' 'urin the ;y'ration o, Cement D C2S) C+S) C+) CFA Le Chatelier:s Co#pouns B +icat:s Co#pounsC Portlan Co#pouns D Bogue:s Co#pouns

*** *** *** *** ***1*1@ The purpose o, a''in "ypsum -hile manu,acturin cement isA 'o encourage 7 accelerate $lash Setting B 'o a-oi Air SettingC 'o a-oi $lash Setting D 'o increase Strength o" Ce#ent

*** *** *** *** ***1*2A

To remo3e ,orm-ork 0uickly) instea' o, -aitin ,or normal 'uration a,ter castin o, concrete) the type o,cement to (e use' is

A Rapi 4arening Ce#ent B 9uick SettingCe#ent

C PPC D PC

*** *** *** *** ***1*21

To allo- 3ehicles to 0uickly roll o3er the concrete roa' (ri'e sla() -ith-aitin ,or 2? 'ays the type o, cemto (e use' is

A Rapi 4arening Ce#ent B 9uick Setting

Ce#ent

C PPC D PC

*** *** *** *** ***1* 22 Fineness o, Cement is e5presse' in terms o,A Particle Si0e in 3icron B An& one o" these two units are use as

re1uireC 'otal Sur"ace Area o" Particles per

)ra# WtD None o" these

*** *** *** *** ***1* 2+

The 0uality control test metho' in -hich a metal ro' is presse' aainst the concrete sur,ace an' its e5tent returnin (ack is measure' to e3aluate the concrete strenth is calle' as

A Schinler:s Re%oun4a##er 'est

B Sch#it:s Re%oun4a##er 'est

C Pull Back'est

D Push ut'est


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*** *** *** *** ****** ***

1*2The metho' o, compaction o, concrete in -hich the -ater poure' ,or mi5in is partly remo3e' a,ter theconcrete is lai' (y applyin a lo- pressure on the concrete sur,ace is calle' as

A B C D

A +acuu# 3etho B +acuu# Co#paction 3ethoC Pressure ; 8olting 3etho D +acuu# Dewatering 3etho

*** *** *** *** ***

1* 24 &urin Cement $anu,acture) soli' lumps appearin like coal are ,orme' a,ter the ,usion o, ra- materialsinsi'e the iln 9 These lumps are also e5porte' in ships instea' o, e5portin cement po-'er9 These lumps acalle' as

A Ce#entCoke

B Clinker C SoliCe#ent

D Ce#ent Concrete

*** *** *** *** ***1* 2:

The coarse an' ,ine areates are store' in open roun' un'er the sky in a R$C %lant9 &urin hot summe'ay) the (atchin is 'one9 Then the G#!TITY o, -ater a''e' to prepare the concrete mi5 -ill (e

A No e*tra water at all< E*tra water will %e ae onl& i" #ore slu#p is re1uire

B Will %e sa#e as ae uring a col winter rain& a&C Sa#e as the initiall& calculate water 1uantit&D 3ore than the initiall& calculate water 1uantit&< this e*tra water is to co#pensate "or

the ABSRP'IN %& the aggregates

*** *** *** *** ***1*2=

Whether it is summer or -inter or rainy season) the -ater G#!TITY a''e' -hile mi5in concrete -ill (ethe S$E as calculate' I!ITI>>Y I! T;E $IH &ESI"! . i9e !O EHTR WTER / IF the Fine an'Coarse reates are

A DR5 B Saturate C SSDConition

D In Roo# 'e#perature

*** *** *** *** ***1*2?


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C Saturate Sur"ace Dr& D Super Saturate Densi,e

*** *** *** *** ***1*+2

R$C means

A Rapil&3i*eConcrete

B Raw 3aterials"or Concrete

C Rea& 3aeConcrete

D Rea& 3i*Concrete

*** *** *** *** ***1*++

CRF means

A Crushe Rock $ines B Crushe Rock $iller

C Crusher Reacti-e $lu#e D Co#pression Resistant $ines

*** *** *** *** ***

1*+From the same concrete mi5) + cu(es an' + cylin'ers are cast on same 'ay an' all are teste' on same 2?th'ay in a CT$ machine9 Which shape -ill e5hi(it ;I";ER CO$%RESSIVRE STRE!"T; . !OT the >oa' (ut thStress /

A Cu%es

B C&liners

C Both will ha-e sa#estrength

D Strength oes not epenon shape

*** *** *** *** ***1*+4I, Cylin'ers are use' to ,in' the compressi3e strenth o, concrete) then the stan'ar' ratio o, its&iameter K ;eiht is

A ?@ B @? C ?@? D @

*** *** *** *** ***1*+:

"oo' 0uality manu,acturers o, cement) in or'er to impro3e the 0uality or to i3e (etter ,acility to thecustomer) alter the Settin Times o, their cement pro'uct in -hich o, the ,ollo-in -ays

A Increase %oth the IS' MORE than #inutes an also INCREASE the $S' 3RE than? hours

B Increase the IS' MORE than #inutes an Decrease the $S' LESS than ? hours

C DECREASE %oth the IS' an $S' lesser than the IS coe -alues o" #inutes an

#inutesD 'here is no use practicall& %& -ar&ing the setting ti#es2

*** *** *** *** ***

1*+=

l

'i#e +s Strength %etween PC ; PPC (? . upper cur-e an . lower cur-e !

Choose the correct pair

A )raph ? "or PC an "or PPC

B )raph ? "or PPC an "or PC

CAn& graph #a& present an& t&pe o" ce#ent ( %ecause%oth PC an PPC e*hi%it %oth t&pes o" %eha-iours !

*** *** *** *** ***1*+?

From the a(o3e raph) an' ,rom the correct ans-er ,or the pre3ious 0uestion) no- choose the correctstatement

A $or#work #a& %e re#o-e in a shorter ti#e i" PC is use %ut "or#work #a& ha-e to le"t in place "or a longer ti#e i" PPC is use2


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B Whether it is PC or PPC6 %oth the ce#ents will ac1uire the sa#e strength ulti#atel&a"ter a&s

C Both the state#ents A an B are correct D Both the state#ents A an B arewrong

*** *** *** *** ***1*+@ The common popular name ,or the concrete chemical calle' as ;I"; R!"E WTER RECER . ;RWR

A Plastici0er

B Superplastici0er

C Slu#pBooster

D 'he che#icals are not at all relato 4RWR

*** *** *** *** ***1*A s per the current In'ian Co'e o, %ractice) the minimum ra'es o, concretes ,or %CC an' RCC are

A 3? an 3?F B 3 ? an 3 C 3?F an 3 D 3 ?F "or%oth

*** *** *** *** ***1*1 Concrete -ith ERO Slump is use' ,or situations like

A Roas6 Da#s where Roller Co#pactionis use

B s#all ele#ents like Bea#s6 with #orerein"orce#ent

C Inustrial Goors re1uiring high i#pactstrength

D An& concrete ele#ent

*** *** *** *** ***

1*2

> In R$C %lants) e3ery month en') the stores an' pro'uction manaers compare the total -eiht o, cemepurchase' an' total o, all -eihts o, cements use' to supply concretes to 3arious clients9 E3ery month tht-o totals 'i' not tally9 ll -eihin machines an' sensors an' other systems -ere ,oun' to (e per,ectlyaccurate at all times9 The total o, cements supplie' as concrete -as al-ays lesser than the total cementpurchase'9 The reason ,or this 'iscrepancy coul' (e

A Concrete is sol in +olu#e %ut Ce#ent is purchase in weight2 During -olu#e to weighcon-ersion6 so#e error #a& creep in ue to -ar&ing Speci,c )ra-it& o" ce#ents

B Ce#ent purchase an store in silos #a& %e lost to a%out to FH as DUS' loss in airinspite o" all silos6 con-e&ors6 #i*ers6 etc2 %eing airtight2

C Dust loss cannot %e a reason since all co#ponents are airtight2 'he onl& reason will %e#inor errors in weighing sensors since their accurac& an sensiti-it& will %e a=ecte %&the D&na#ic "orces an se-ere ust& en-iron#ent2

D Both ue to ust loss an also ue to sensor #istakes2

*** *** *** *** ***

1*+

'he test set up on aconcrete c&liner is

1*

'he e1uip#ent

A Split 'ension 'est AConcrete Re4a##er

BSplit Compreio!Tet

BUltrasonic P+elocit& 'es

CBea# $le*ure

'estC

Concrete Su4arness 'e

D Co#pression 'est D 8ust a Steel

1*4

3atch 656J with Correct Slu#p

'&pes

5 J

A SCC Shear Jero

BCollapse

Shear 'rue

CCollapse

Shear Jero

D Jero Shear 'rue


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1*:

'he e1uip#ent is "or

1*=

'he e1uip#ent "or

A$lowa%ilit& 'est"or SCC

A $low 'a%le 'e

BAggregatesSegregation 'est

BSegregation

'est uner+i%ration

C'est "or Bleeingwhile pouring into

Colu#ns

C Centri"uge

DCo#paction$actor 'est

DCu%eCo#paction

*** *** *** *** ****** ***

1* ?For concrete ,loors -ithout tiles or Stones ,inish)then to o3er an' a(o3e the RCC sla() to ,orm the FloorFinish) a thin layer o, %CC -ith rich cement content an' only -ith 12 mm an' 'o-n coarse areates is as the ,inal ,inish9 This thin layer o, %CC is calle' as

A SCREEN B SCREED C SPREAD D CARPE'

*** *** *** *** ***1* @ ICI an' CI stan' ,or

A B C D

A Inian Concrete Institute ; A#erican ConcreteInstitute

B Inian Concrete Institute ; A#erican Ce#eInstitute

C Inian Ce#ent Institute ; A#erican Ce#entInstitute

D Inian Ce#ent Institute ; A#erican ConcrInstitute

*** *** *** *** ***1* 4A %SC means

A Prestrengthene Concrete B Prestraine Concrete

C Polishe Sur"ace Concrete D Prestresse Concrete

*** *** *** *** ***1*41 E5pansion Loints are pro3i'e' in Concrete pa3ements at a ma5imum inter3al o,

A K# B F# C KF# D FK#

*** *** *** *** ***1* 42

In or'inary O%C cements) a,ter -ater is a''e') -hat are the chemical an' physical processes takin placChoose the correct se0uence (ase' on time

A 4arening / 4&ration . Setting B Setting / 4&ration . 4arening

C 4&ration . Setting . 4arening D 4arening / Setting / 4&ration

*** *** *** *** ***1* 4+ For or'inary O%C cements) choose the correct pair o, 'urations re0uire' normally

A B C D

A Setting . Da&s AND 4arening ? 4ours B 4arening. ? 4ours AND Settin Da&s

C Setting . ? Da&s AND 4arening Da&s D Setting . ? 4ours AND 4arenin Da&s

*** *** *** *** ***


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1* 4IF 'ue to some reason) the Transit $i5er ,ully loa'e' -ith ,resh concrete has to keep -aitin at site -ithou(ein a(le to unloa' the concrete into the pump9 Then to preser3e the 0uality o, ,resh concrete 'urin the-aitin perio') -hich o, the ,ollo-in precautions has to (e un'etrtaken

A A Sugar toconcrete

B A lot o"Water

C Rot"te Tr"!itMi#er $ASTL%

D Stop 3i*er Rotation

*** *** *** *** ***1* 44 ;%C meansA 4igh Per#ea%ilit& Concrete B 4igh Paste Content ConcreteC 4igh Porosit& Concrete D 4igh Per"or#ance Concrete

*** *** *** *** ***1* 4: Reasons ,or usin FRC to construct Concrete %a3ement ,or irport Run-ayA 'o increase A%rasion

ResistanceB 'o increase I#pact

ResistanceC Both the reasons A an B

D Not "or an& strength increase %ut the steel ,%res will act as Sacri,cial Corroers anthere%& protect the #ain steel rein"orce#ent insie

*** *** *** *** ***1* 4= When the steel rein,orcement insi'e RCC corro'es) then theA Steel ros Shrink in -olu#e6 Suck the co-er concrete IN an there%& concrete cracksB Steel ros get powere an lose %on with the co-er concrete an there%& concrete

cracksC Steel ros swell in -olu#e6 push the co-er concrete out an there%& concrete cracks

D Steel ros crack an %reak an PUNC4 the co-er concrete out an there%& concrete cra*** *** *** *** ***1* 4? The a(o3e process o, crackin o, Co3er Concrete 'ue to corrosion o, steel insi'e is name' asA Spoiling B Spilling C Swelling D Spalling

*** *** *** *** ***1* 4@

In concrete mem(ers) some cracks keep on propaatin continuously (ut some cracks stop ro-in a,tersome time9 These t-o types o, cracks are calle' as

A Structural ; Non/structural Cracks B Acti-e ; Passi-e CracksC Continuous an Non/continuous Cracks D Long 'er# an Short 'er# Cracks

*** *** *** *** ***1* :A In ,i(re rein,orce' concrete) the ratio (et-een lenth an' 'iameter o, an in'i3i'ual ,i(re is calle' asA Align#ent Ratio B Aspect Ratio C Buckling Ratio D $i%re Ratio

*** *** *** *** ***1 *:1 The limitin or


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*** *** *** ***1*:4

The other technical name ,or "R&E o, Concrete as per


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1 *=A

4 'i,,erent types o, "ra'ations o, areates are represente' a(o3e &ense "ra'e')Well "ra'e')Open "ra'e')#ni,ormly "ra'e')

"ap D"ra'e' Cur3es N"me t,e C-r.e /,i+, repree!t A RAEAREATES

A Cur-e No ? B Cur-e No C Cur-e No an alsoK

D Cur-e No F

*** *** *** *** ***

1*=1 In RCC &esin) -hen Factor o, Sa,ety . FoS / 3alues are assine' ,or materails)A Steel Rein"orce#ent is gi-en a 4I)4ER $oS than the $oS gi-en "or Concrete

B Concrete is gi-en a 4I)4ER $oS than the $oS gi-en "or Steel Rein"orce#entC Both Concrete an Steel Rein"orce#ent are gi-en SA3E $oSD 'he -alues o" $oS assigne "or the Concrete an Steel Rein"orce#ent #aterials o not

epen on the #aterial %ut epen on the t&pe o" structural #e#%er

*** *** *** *** ***

1* =2

lorry (rins Ri3er San' to the R$C plant9 The san' is ,oun' to (e -et9 The stores manaer reNecte' thatloa's an' sent it (ack9The lorry 'ri3er took it (ack to his stock yar') 'umpe' on the roun' an' allo-e' the san' to et 'rie'9!e5t 'ay the same (ut no- &RY san' -as loa'e' in the same lorry an' -ent to the R$C %lant9!o- the same manaer accepts an' (uys that loa'9 ;e is also a-are that this -as the san' that -asreNecte' (y him the pre3ious 'ay ,or (ein -et9 The reason ,or reNectin in -et state an' acceptin in 'ry

state is ( Clue @ San is Purchase on +LU3E'RIC%asis !

A Wet san shows less -olu#e ue to %ulkingB Wet san shows #ore weight ue to #oisture weightC Wet san shows #ore -olu#e ue to %ulkingD No speci,c technical reason< Qust "or practical con-enience< wet san i" purchase an

u#pe an store in the R3C pre#ises6 will create nuisance like %acteria an algaegrowth6 attracting ogs which like to sleep on wet san6 etc2

*** *** *** *** ***1 * =+

S#%%OSE in the pre3ious 0uestion) i, the san' -as purchase' on WEI";T (asis) . an' not on 3olume(asis / ) no- also the stores manaer reNects the -et san' (ut accepts 'ry san'9 The reason

A Wet san shows less -olu#e ue to %ulkingB Wet san shows #ore weight ue to #oisture weightC Wet san shows #ore -olu#e ue to %ulking


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D No speci,c technical reason< Qust "or practical con-enience< wet san i" purchase anu#pe an store in the R3C pre#ises6 will create nuisance like %acteria an algaegrowth6 attracting ogs which like to sleep on wet san6 etc2

*** *** *** *** ***

1 * =Steel Fi(re Rein,orce' Concrete is use' atleast in the


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CAQusta%le Span anAQusta%le Prop

D 3etal $or#work S&ste#s

*** *** *** *** ***

2 *4

'he PR$ILED Steel Sheet ( shown %& BlaArrow ! is use to support the

Rein"orce#ents an Concrete anper#anentl& le"t in place2 'his steel sheetis calle

A Deck Sheet

B Lost $or#work2

C So>t $or#work

D

A B C D

A BC DABCD

*** *** *** *** ****** ***2 *A B C DA B

C DABCD

*** *** *** *** ****** ***2 *A B C DA BC D

ABCD

*** *** *** *** ****** ***2 *A B C DA BC D


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ABCD

*** *** *** *** ****** ***2 *A B C D

A BC DABCD

*** *** *** *** ****** ***2 *A B C DA B

C DABCD

*** *** *** *** ****** ***2 *A B C DA BC DABCD

*** *** *** *** ****** ***2 *A B C DA BC D

ABCD

*** *** *** *** ****** ***

*6'7*6'7*6'7*6'7*6'7*6'7*6'7*6'7*6'7*6'7*6'7*6'7*6'7*6'7*6'

7*6'7*6'7*6'7*6'7*6'7


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& * STEEL REIN$ORCEMENT

+*1 In Steel Re(ar Rein,orcement manu,acturin) the re(ars are 'escri(e' as Fe 24A) Fe 14) Fe 4AA) etc9 thenum(ers 24A) 14 )DDD represent -hich property o, the steel re(ar

A Elastic Li#itStrength

B 5iel Strength C Ulti#ate Strength D

D 'he #a*i#u# loa in kN that can %e sustaine %& one re%ar

*** *** *** *** ***+ * 2 In Steel Re(ar Rein,orcement manu,acturin) the re(ars are 'escri(e' as Fe 24A) Fe 14) Fe 4AA) etc9 thenum(ers 24A) 14 are yiel' strenths o, the re(ars e5presse' in

A9N:mm

2 B 9N:m2 C M" D N:mm

2

*** *** *** *** ***+ * + In Re(ar terminoloy) CT& stan's ,or

A Corrosion 'olerant De"or#e B Col 'wiste De"or#e

C Col 'e#perature De"or#e D Co-er 'hickness Depenent

*** *** *** *** ***

+ * T$T means ,or

A 'e#perature 3oi,e'reat#ent

B ''AL ; 3EAN 'e#peratures ( applie uring heattreat#ent o" steel !

C 'her#o/3echanicall&'wiste

D 'her#o/3echanicall& 'reate

*** *** *** *** ***+ * 4 S%>ICI!" o, re(ars means

A Cutting a re%ar to the re1uire length

B Bening o" the re%ar as per the rawing shapes2

C 8oining two or #ore PARALLEL re%ars along their lengths when the a-aila%le stanarlength is not ae1uate or Qust when two i=erent re%ar pieces ha-e to %e Qoine toincrease the o-erall length2

D Appl&ing a coating glue on %oth the re%ar sur"aces along the o-erlapping length6 so thatthe Qoint is strong

*** *** *** *** ***+ * : In steel rein,orcement) CRS means

A Corrosion Resistant Steel B Corrosion Reuction Steel

C Col Rerolle Steel D Col Rolle Steel

*** *** *** *** ***

+ * = In steel rein,orcement) the acronym ;R CR stan's ,orA 4eat Resistant 7 Col Rolle B 4igh Range Corrosion Resistant

C 4ot Rolle 7 Col Rolle D 4u#iit& Resistant 7 CorrosionResistant

*** *** *** *** ***

+ * ?

The picture (esi'es represents a

CoverBlock

< Pipe Seater CConcrete Blockused in Sea ShoreProtection

&Modern ArtSculpture inConcrete

*** *** *** *** ***


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+ * @ The picture (esi'es represents a

FourLeggedStirrup

question bank for con quiz 2014 (1)

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